CN114524878B - 一种双特异性抗体及其用途 - Google Patents
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Abstract
本公开涉及一种双特异性抗体及其用途。所述双特异性抗体或其抗原结合片段包含:(a)第一抗原结合部分或其抗原结合片段,所述第一抗原结合部分包含第一轻链和第一重链,所述第一轻链为κ型轻链,所述第一抗原结合部分包含与第一抗原结合的第一结合结构域;和(b)第二抗原结合部分或其抗原结合片段,所述第二抗原结合部分包含第二轻链和第二重链,所述第二轻链为λ型轻链,所述第二抗原结合部分包含与第二抗原结合的第二结合结构域。所述双特异抗体的重链和轻链的错配率低,其纯化收率高,且不与FcγR受体结合,减低了产生细胞因子风暴的风险,耐受良好,其疗效和安全性均优于同类抗体。
Description
技术领域
本公开涉及一种双特异性抗体及其用途,特别是结合CD3及另一种抗原的双特异性抗体及其用途。
背景技术
T细胞双特异抗体(或称T细胞衔接器),是一种特殊的抗体分子,可通过其一端识别靶细胞表面抗原(抗原臂),通过另一端结合T细胞CD3受体(CD3臂),以一种类似于TCR/肽/HLA的方式,使T细胞上的CD3发生聚集,从而活化T细胞并杀伤肿瘤。上世纪80年代,即有报道利用双特异抗体杀伤肿瘤细胞(Nature.1985Apr 18-24;314(6012):628-31;Nature.1985Jul 25-31;316(6026):354-6)。经过30多年的研究,基本解决了抗体的错配问题,有3个双特异抗体药物陆续获得批准上市。尽管在批准的适应症中显示了非常好的疗效,但随之带来的副作用和使用上的局限性,阻碍了早期这些双特异抗体的广泛应用。例如:早期上市的catumaxomab由于Fc段与肝脏Kupffer细胞表达的Fcγ受体结合,引发了快速的细胞因子释放,目前已退市;而2014年上市的blinatumomab,由于采用Fv抗体片段,生物半衰期仅为2小时,需低剂量持续静脉输注,同时FDA批准伴有细胞因子释放综合症和神经毒性的黑框警告。
正常免疫应答过程中,TCR以低亲和力(约1-100μM)结合感染或突变细胞上的外源肽-人白细胞抗原复合物(HLA),通过CD3信号传导复合物(包括CD3εγ、CD3εδ和CD3ζζ),将活化信号传导到核内,激活转录因子及其下游蛋白(细胞因子、颗粒酶、穿孔素等)的表达,其中TCR复合物产生的信号强度将决定T细胞的命运。早期开发的CD3双特异抗体,多基于OKT3、L2K、UCHT1和TR66等少数鼠源抗体,亲和力较高,导致T细胞过度活化,释放大量细胞因子,产生细胞因子风暴综合征;同时,高亲和力也会导致双特异抗体在二级淋巴器官的富集,减低在肿瘤组织的暴露。
抗体Fc部分与Fcγ受体的结合能力是另一个对影响药物安全的重要因素,由于Fcγ受体在多种正常组织表达,双特异抗体通过Fc与细胞膜上的Fcγ受体结合后,可导致另一端结合的CD3受体因Fcγ受体聚集而交联活化,从而产生严重的脱靶毒性。通过使用Fcγ受体结合能力较弱的人IgG2亚型或IgG4亚型,或者进一步在CH2相应位点进行氨基酸替换,如:Armour等将IgG1和IgG4的第233-236位点(EU序列编号)替换成IgG2相应序列,减少了和Fcγ受体的结合(Eur.J.Immunol.1999),Newman等在IgG4引入突变Ser228Pro和Leu235Glu,稳定IgG4结构同时减少与Fcγ受体的结合(Clin Immunol.2001),Idusogie等发现将Asp270、Lys322、Pro329或Pro331分别替换成Ala,可减少IgG1与补体C1q的结合(JImmunol.2000)等。
链间错配是天然IgG样双特异抗体开发的主要工艺难点。Merchant AM等发明的共同轻链(1998),或Fischer N等开发的共同重链(2015),通常都需要进行复杂的蛋白质工程改造,或者利用转基因动物产生(McWhirter J,2012);Carter P等(1997)通过在抗体Fc段引入knobs-into-holes互补突变,以解决重链间的错配;Schaefer G等(2011)开发了将轻、重链的Fab部分或全长进行交换的CrossMab技术,解决轻链错配问题,其中部分交换的CrossMabVH-VL和CrossMabCH1-CL需要引入额外肽段以实现正确配对,而Fab全长交换的CrossMabFab正确配对率不足50%。
发明内容
在表达双特异抗体的过程中,本发明人意外发现,将具有λ轻链的人源化CD3抗体和具有κ轻链的靶向抗体进行组合,CD3抗体λ轻链更倾向于和同源的CD3重链进行配对,而靶向抗体kappa轻链倾向于和同源的靶向抗体重链配对。通过进一步在轻、重链间设计互补电荷对,可以提高正确配对效率。并且,实验证明,利用CD20、BCMA和GPC3等多个靶点抗体和人源化CD3抗体构建的新型T细胞连接器,经三步纯化均实现98-100%的单体纯度,错配比例极低(<1%)。
本公开提供了一种新型T细胞连接器,采用不同类型轻链κλ双特异抗体设计,和全长IgG构型,其中:结合靶细胞和T细胞CD3的抗体臂分别采用kappa轻链和lambda轻链,与其同源的重链进行配对,同时引入互补电荷对增强正确配对率;通过亲和力优化,新型T细胞连接器低浓度下即可募集活化T细胞,对靶细胞产生有效杀伤,无靶细胞存在时不激活T细胞;同时,新型T细胞κλ双特异抗体不与FcγR受体结合,减低了产生细胞因子风暴的风险。采用本公开方法构建的新型CD20×CD3κλ双特异抗体、BCMA×CD3κλ双特异抗体和GPC3xCD3κλ双特异抗体纯化收率高,通过三步法纯化可实现>99%纯度。动物对新型CD20-CD3κλ双特异抗体耐受良好,新型T细胞连接器的疗效和安全性均优于同类抗体。
因此,在一方面,本公开提供了一种双特异性抗体或其抗原结合部分。
在一方面,本公开提供了编码如前述方面的双特异性抗体或其抗原结合部分的核酸。
在一方面,本公开提供了包含前述方面的核酸的载体。
在一方面,本公开提供了包含前述方面的载体的细胞。
根据前述任一方面的抗体或其抗原结合部分,其中所述抗体或其抗原结合部分是人源化的。
在一方面,本公开提供了包含如前述任一方面的抗体或其抗原结合部分或其编码核酸和药学上可接受的载体的药物组合物或试剂盒。
在一方面,本公开提供了包含共价附着至治疗部分的前述任一方面所述的抗体或其抗原结合部分、双特异性或多特异性分子的抗体-药物偶联物。
在一方面,本公开提供了治疗与相关病症的方法,其包括下述步骤:向所述哺乳动物施用治疗有效量的前述任一方面的抗体或其抗原结合片段、核酸、载体、细胞和/或药物组合物。
在一方面,本公开提供了前述任一方面的抗体或其抗原结合片段、核酸、载体、细胞和/或药物组合物在制备用于治疗哺乳动物中与肿瘤抗原相关病症的药物或试剂盒中的用途。
本公开的抗体可以用于多种应用,包括检测肿瘤抗原,诊断、治疗或预防与肿瘤抗原相关的疾病。
附图说明
图1示出了本公开的第一抗原×CD3κλ双特异抗体。
图2示出了CD3人源化抗体与人CD3εγ蛋白的结合。
图3示出了CD3人源化抗体与Jurkat细胞的结合。
图4示出了CD3人源化抗体与人和食蟹猴蛋白的结合。
图5示出了本公开的κλ001、κλ002、κλ003、κλ004、κλ005的结构。
图6示出了CD20×CD3κλ双特异抗体经Protein A纯化的结果。
图7示出了CD20×CD3κλ双特异抗体的SEC-HPLC检测结果。
图8示出了CD20×CD3κλ双特异抗体同源二聚体检测结果。
图9示出了CD20×CD3κλ双特异抗体与CD20稳转细胞的结合。
图10示出了CD20×CD3κλ双特异抗体与肿瘤细胞SU-DHL-4、Raji和NALM-6的结合。
图11示出了CD20×CD3κλ双特异抗体与Jurkat细胞的结合。
图12示出了CD20×CD3κλ双特异抗体与外周血T细胞的结合。
图13示出了CD20×CD3κλ双特异抗体介导的TDCC作用,图13A显示对Nalm-6细胞的杀伤,图13B显示对T细胞的活化。
图14示出了CD20×CD3κλ双特异抗体介导的TDCC作用,图14A显示对TMD-8细胞的杀伤,图14B显示对T细胞的活化。
图15示出了CD20×CD3κλ双特异抗体介导的TDCC作用,图15A显示对Toledo细胞的杀伤,图15B显示对T细胞的活化。
图16示出了CD20×CD3κλ双特异抗体对T细胞NFAT信号通路的作用。
图17示出了CD20×CD3κλ双特异抗体在免疫重建小鼠Raji移植瘤模型中的抑制作用。
图18示出了CD20×CD3κλ双特异抗体在免疫缺陷型小鼠皮下Raji与人PBMC混合接瘤模型中的抑制作用。
图19示出了CD20×CD3κλ双特异抗体在食蟹猴中的药效.
图20示出了BCMA×CD3κλ双特异抗体与BCMA稳转细胞的结合。
图21示出了BCMA×CD3κλ双特异抗体与肿瘤细胞NCI-H929和RPMI-8226的结合。
图22示出了BCMA×CD3κλ双特异抗体与Jurkat细胞的结合。
图23示出了BCMA×CD3κλ双特异抗体与外周血T细胞的结合。
图24示出了BCMA×CD3κλ双特异抗体介导的TDCC作用,图24A显示对NCI-H929细胞的杀伤,图24B显示对T细胞的活化。
图25示出了BCMA×CD3κλ双特异抗体介导的TDCC作用,图25A显示对RPMI-8226细胞的杀伤,图25B显示对T细胞的活化。
图26示出了BCMA×CD3κλ双特异抗体对T细胞NFAT信号通路的作用。
图27示出了BCMA×CD3κλ双特异抗体对PBMC的非特异激活。
图28示出了BCMA×CD3κλ双特异抗体与Fc受体的结合。
图29示出了BCMA×CD3κλ双特异抗体在免疫缺陷型小鼠皮下NCI-H929移植瘤模型中的抑制作用。
图30示出了GPC3×CD3κλ双特异抗体与GPC3稳转细胞的结合。
图31示出了GPC3×CD3κλ双特异抗体与肿瘤细胞HepG2的结合。
图32示出了GPC3×CD3κλ双特异抗体与Jurkat细胞的结合。
图33示出了GPC3×CD3κλ双特异抗体与外周血T细胞的结合。
图34示出了GPC3×CD3κλ双特异抗体介导的TDCC作用,图34A显示对HepG2细胞的杀伤,图34B显示对T细胞的活化。
图35示出了GPC3×CD3κλ双特异抗体对T细胞NFAT信号通路的作用。
图36示出了GPC3×CD3κλ双特异抗体对PBMC的非特异激活。
图37示出了GPC3×CD3κλ双特异抗体在免疫重建小鼠皮下HepG2移植瘤模型中的抑制作用。
图38示出了GPC3×CD3κλ双特异抗体在CD3人源化鼠Hepa1-6/人GPC3移植瘤模型中的抑制作用。
具体实施方式
I.定义
在本公开中,除非另有说明,否则本文中使用的科学和技术名词具有本领域技术人员所通常理解的含义。并且,本文中所用的蛋白质和核酸化学、分子生物学、细胞和组织培养、微生物学、免疫学相关术语和实验室操作步骤均为相应领域内广泛使用的术语和常规步骤。同时,为了更好地理解本公开,下面提供相关术语的定义和解释。
如本文中使用的,″肿瘤抗原″优选地是指存在于(或结合于)肿瘤细胞上而一般不存在于正常细胞上的任何抗原或抗原决定簇,或以比正常(非肿瘤)细胞上更大的量存在于或结合于肿瘤细胞上的抗原或抗原决定簇,或以不同于在正常(非肿瘤)细胞上发现的形式存在于肿瘤细胞上的抗原或抗原决定簇。该术语因此包括肿瘤特异性抗原,包括肿瘤特异性抗原(TSA)或肿瘤相关抗原(TAA),包括肿瘤相关膜抗原、肿瘤上的胚胎抗原、生长因子受体、生长因子配体和与癌症有关的任何其它类型的抗原。肿瘤抗原可以是,例如,B细胞分化抗原(例如,CD19、CD20和CD37)、B细胞成熟抗原(B-cell maturation antigen,BCMA)、磷脂酰肌醇蛋白聚糖3(GPC3)、上皮癌抗原(例如,乳癌、胃肠癌、肺癌)、前列腺特异性癌抗原(PSA)或前列腺特异性膜抗原(PSMA)、膀胱癌抗原、肺(例如,小细胞肺)癌抗原、结肠癌抗原、卵巢癌抗原、脑癌抗原、胃癌抗原、肾细胞癌抗原、胰腺癌抗原、肝癌抗原、食道癌抗原、头颈癌抗原或结肠直肠癌抗原。
TSA对于肿瘤细胞是(或者被认为是)独特的,并且不发生在体内的其他细胞上(例如,在其他细胞上不在显著的程度上发生)。TAA对于肿瘤细胞不是独特的,并且相反也在正常细胞上表达(例如,在不能诱导对抗原的免疫耐受状态的条件下表达)。例如,当免疫系统不成熟并且不能应答时,TAA可以是在胎儿发育过程中在正常细胞上表达的抗原,或者它们可以是正常地在正常细胞上在极低水平下存在但是在肿瘤细胞上在更高水平下表达的抗原。
TSA或TAA抗原的非限制性实例包括分化抗原,诸如MART-1/MelanA(MART-I)、gp100(Pmel 17)、酪氨酸酶、TRP-1、TRP-2和肿瘤特异性多谱系抗原诸如MAGE-1、MAGE-3、BAGE、GAGE-1、GAGE-2、p15;过表达的胚胎抗原,诸如CEA;过表达的致癌基因和突变的肿瘤抑制基因,诸如p53、Ras、HER-2/neu;由染色体易位导致的独特肿瘤抗原,诸如BCR-ABL、E2A-PRL、H4-RET、IGH-IGK、MYL-RAR;以及病毒抗原,诸如爱泼斯坦巴尔病毒抗原EBVA以及人类乳头瘤病毒(HPV)抗原E6和E7。其他肿瘤抗原包括TSP-180、MAGE-4、MAGE-5、MAGE-6、RAGE、NY-ESO、erbB、p185erbB2、p180erbB-3、c-met、nm-23H1、PSA、TAG-72、CA 19-9、CA72-4、CAM 17.1、NuMa、K-ras、β-连环蛋白、CDK4、Mum-1、p 15、p 16、43-9F、5T4、791Tgp72、甲胎蛋白、β-HCG、BCA225、BTAA、CA 125、CA 15-3\CA 27.29\BCAA、CA 195、CA242、CA-50、CAM43、CD68\P1、CO-029、FGF-5、G250、Ga733\EpCAM、HTgp-175、M344、MA-50、MG7-Ag、MOV18、NB/70K、NY-CO-1、RCAS1、SDCCAG16、TA-90\Mac-2结合蛋白\亲环蛋白C-相关蛋白、TAAL6、TAG72、TLP、MUC16、IL13Rα2、FRα、VEGFR2、Lewis Y、FAP、EphA2、CEACAM5、EGFR、CA6、CA9、GPNMB、EGP1、FOLR1、内皮受体、STEAP1、SLC44A4、结合素-4、AGS-16、胍基环化酶C、MUC-1、CFC1B、整联蛋白α3链(a3b1的链,即层粘连蛋白受体链)和TPS。其他肿瘤抗原还包括CD19、CD20、CD22、CD30、CD72、CD180、CD171(L1CAM)、CD123、CD133、CD138、CD37、CD70、CD79a、CD79b、CD56、CD74、CD166、CD71、CLL-1/CLECK12A、ROR1、BCMA、磷脂酰肌醇蛋白聚糖3(GPC3)、间皮素、CD33/IL3Ra、c-Met、PSCA、PSMA、糖脂F77、EGFRvIII、GD-2、MY-ESO-1或MAGEA3。
如本文中使用的,术语“CD20”指来自任何脊椎动物来源,包括哺乳动物,诸如灵长动物(例如人)和啮齿动物(例如小鼠和大鼠)的任何天然CD20。
术语“抗CD20抗体”和“结合CD20的抗体”指能够以足够亲和力结合CD20,使得该抗体作为诊断剂和/或治疗剂在靶向CD20中是有用的抗体。在一个实施方案中,抗CD20抗体对无关非CD20蛋白的结合程度小于该抗体对CD20的结合的约10%,如通过例如放射免疫测定法(RIA)测量的。在某些实施方案中,结合CD20的抗体具有≤1μM,≤100nM,≤10nM,≤1nM,≤0.1nM,≤0.01nM,或≤0.001nM(例如10-8M或更低,例如10-8M至10-13M,例如10-9M至10-13M)的解离常数(Kd)。在某些实施方案中,抗CD20抗体结合在来自不同物种的CD20间保守的CD20表位。
如本文中使用的,术语“BCMA”可以指共同指代存在于动物中并且优选地存在于人体中的BCMA本身及其任何变体、同种型和旁系同源物的概念。
术语“人BCMA”是指人来源的BCMA,并且可以优选具有但不限于Genbank登录号AB052772.1的氨基酸序列。
术语“抗BCMA抗体”和“结合BCMA的抗体”指能够以足够亲和力结合BCMA,使得该抗体作为诊断剂和/或治疗剂在靶向BCMA中是有用的抗体。在一个实施方案中,抗BCMA抗体对无关非BCMA蛋白的结合程度小于该抗体对BCMA的结合的约10%,如通过例如放射免疫测定法(RIA)测量的。在某些实施方案中,结合BCMA的抗体具有≤1μM,≤100nM,≤10nM,≤1nM,≤0.1nM,≤0.01nM,或≤0.001nM(例如10-8M或更低,例如10-8M至10-13M,例如10-9M至10-13M)的解离常数(Kd)。在某些实施方案中,抗BCMA抗体结合在来自不同物种的BCMA间保守的BCMA表位。
如本文中使用的,术语“GPC3”可以指共同指代存在于动物中并且优选地存在于人体中的GPC3本身及其任何变体、同种型和旁系同源物的概念。
术语“人GPC3”是指人来源的GPC3。
术语“抗GPC3抗体”和“结合GPC3的抗体”指能够以足够亲和力结合GPC3,使得该抗体作为诊断剂和/或治疗剂在靶向GPC3中是有用的抗体。在一个实施方案中,抗GPC3抗体对无关非GPC3蛋白的结合程度小于该抗体对GPC3的结合的约10%,如通过例如放射免疫测定法(RIA)测量的。在某些实施方案中,结合GPC3的抗体具有≤1μM,≤100nM,≤10nM,≤1nM,≤0.1nM,≤0.01nM,或≤0.001nM(例如10-8M或更低,例如10-8M至10-13M,例如10-9M至10-13M)的解离常数(Kd)。在某些实施方案中,抗GPC3抗体结合在来自不同物种的GPC3间保守的GPC3表位。
“CD3”指来自任何脊椎动物来源,包括哺乳动物,诸如灵长动物(例如人),非人灵长动物(例如食蟹猴)和啮齿动物(例如小鼠和大鼠)的任何天然CD3,除非另外指明。该术语涵盖“全长”未加工的CD3以及源自细胞中加工的任何形式的CD3。该术语还涵盖CD3的天然发生变体,例如剪接变体或等位变体。在一个实施方案中,CD3是人CD3,特别是人CD3的厄普西隆亚基(CD3ε)。人CD3ε的氨基酸序列显示于UniProt(www.uniprot.org)登录号P07766(版本144),或NCBI(www.ncbi.nlm.nih.gov/)RefSeq NP_000724.1。食蟹猴[Macacafascicularis]CD3ε的氨基酸序列显示于NCBI GenBank no.BAB71849.1。
术语“细胞表面”的使用是根据其在本领域的正常含义,因此包括可通过与蛋白和其它分子结合而接近的细胞外部。
如本文使用的和除非另作说明,术语“约”或“大约”是指在给定值或范围的加或减10%之内。在需要整数的情况下,该术语是指在给定值或范围的加或减10%之内、向上或向下舍入到最接近的整数。
就抗体链多肽序列而言,短语“基本相同”可理解为表现出与参照多肽序列至少60%、65%、70%、75%、80%、85%、90%、95%、96%、97%、98%、99%或更多的序列同一性的抗体链。就核酸序列而言,该术语可理解为表现出与参照核酸序列至少大于60%、65%、70%、75%、80%、85%、90%、95%、96%、97%、98%、99%或更高的序列同一性的核苷酸序列。
序列“相同性”或“同一性”具有本领域公认的含义,并且可以利用公开的技术计算两个核酸或多肽分子或区域之间序列相同性的百分比。可以沿着多核苷酸或多肽的全长或者沿着该分子的区域测量序列相同性(参见,例如:Computational Molecular Biology,Lesk,A.M.,ed.,Oxford University Pres,New York,1988;Biocomputing:Informaticsand Genome Projects,Smith,D.W.,ed.,Academic Press,New York,1993;ComputerAnalysis of Sequence Data,Part I,Griffin,A.M.,and Griffin,H.G.,eds.,HumanaPress,New Jersey,1994;Sequence Analysis in Molecular Biology,von Heinje,G.,Academic Press,1987;and Sequence Analysis Primer,Gribskov,M.and Devereux,J.,eds.,M Stockton Press,New York,1991)。虽然存在许多测量两个多核苷酸或多肽之间的相同性的方法,但是术语“相同性”是技术人员公知的(Carrillo,H.&Lipman,D.,SIAM JApplied Math 48:1073(1988))。
“取代型”变体是天然序列中至少一个氨基酸残基被除去并被不同的氨基酸插入其相同位置的变体。所述取代可为单个的,其中该分子中仅有一个氨基酸被取代;或可为多个的,其中该相同分子有两个或更多的氨基酸被取代。多个取代可位于连续的位点。同样,一个氨基酸可被多个残基取代,其中这样的变体包括取代和插入二者。“插入型”变体是一个或多个氨基酸被插入到紧邻一段天然序列某个特定位置处的氨基酸的变体。紧邻氨基酸意指与该氨基酸的α-羧基或α-氨基官能团连接。“缺失型”变体是天然氨基酸序列中一个或多个氨基酸被除去的变体。通常情况下,缺失型变体在其分子的特定区域内有一个或两个氨基酸被缺失。
就抗体的可变结构域而言,术语“可变”系指抗体之间有广泛序列差异的相关分子的某些部分,且被用于针对其特异靶的特定抗体的特异识别和结合。但是,可变性在抗体的整个可变结构域内不是均匀分布的。可变性集中在被称为互补决定区域(CDRs;即CDR1、CDR2和CDR3)或超变区的三个区段,它们均位于轻链和重链的可变结构域内。可变结构域内保守程度更高的部分被称为构架(FR)区或构架序列。天然重链和轻链的每个可变结构域均包括四个FR区,其主要采用β-折叠构型,它们籍三个CDRs连接起来,CDRs形成环,所述环连接β-折叠结构并在某些情形下形成部分的β-折叠结构。每条链的CDRs通常被FR区在邻近连接起来,并且借助于来自其它链的CDR,有助于抗体靶结合位点(表位或决定簇)的形成(参看Kabat等人Sequences of Proteins of Immunological Interest,NationalInstituteof Health,Bethesda,MD(1987))。正如本文所使用,免疫球蛋白氨基酸残基的编号是依据Kabat等人的免疫球蛋白氨基酸残基编号系统而进行的,除非另有说明。一个CDR可具有特异结合关联表位的能力。
如本文所用,抗体的“抗体片段”或“抗原结合片段”指全长抗体的任何部分,其少于全长,但是至少包含结合抗原的所述抗体的部分可变区(例如一个或多个CDR和/或一个或多个抗体结合位点),并且因此保留结合特异性以及所述全长抗体的至少部分特异性结合能力。因此,抗原结合片段指包含与衍生抗体片段的抗体结合相同抗原的抗原结合部分的抗体片段。抗体片段包括通过酶促处理全长抗体所产生的抗体衍生物,以及合成产生的衍生物,例如重组产生的衍生物。抗体包括抗体片段。抗体片段的实例包括但不限于Fab、Fab'、F(ab')2、单链Fv(scFv)、Fv、dsFv、双抗体、Fd和Fd'片段以及其他片段,包括修饰的片段(参见,例如,Methods in Molecular Biology,Vol 207:Recombinant Antibodies forCancer Therapy Methods and Protocols(2003);Chapter 1;p 3-25,Kipriyanov)。所述片段可以包括连接在一起的多条链,例如通过二硫键和/或通过肽接头。抗体片段一般包含至少或约50个氨基酸,并且典型至少或约200个氨基酸。抗原结合片段包括任何抗体片段,其在被插入抗体框架(例如通过置换相应区域)时获得免疫特异性地结合(即表现出至少或至少约107-108M-1的Ka)抗原的抗体。“功能片段”或“抗体的类似物”是可防止或实质降低所述受体结合配体或启动信号转导的能力的片段或类似物。正如本文所使用,功能片段一般与“抗体片段″含义相同,且就抗体而论,可指能防止或实质降低所述受体结合配体或启动信号转导的能力的片段,例如Fv、Fab、F(ab')2等等。“Fv”片段由一条重链的可变结构域和一条轻链的可变结构域籍非共价结合方式而形成的二聚体(VH-VL二聚体)组成。在该构型中,每个可变结构域的三个CDRs相互作用,以确定VH-VL二聚体表面上的靶结合位点,与完整抗体的情况一样。所述六个CDRs共同赋予完整抗体的靶结合特异性。但是,即使是单个可变结构域(或仅包括3个靶特异的CDRs的Fv的一半),仍可具有识别和结合靶的能力。
如本文中所用,术语“双特异性”(Bispecific antibody,BsAb)指抗体和/或抗原结合分子能够特异性结合两种不同的抗原性决定簇,通常,双特异性抗体和/或抗原结合分子包含两种抗原结合位点,其中每种特异于不同的抗原性决定簇。在某些实施方案中,所述双特异性抗体和/或抗原结合分子能够同时结合两种抗原决定簇,特别是在两种不同的细胞上表达的两种抗原性决定簇。
如本文所用,“单克隆抗体”指相同抗体的群体,表示单克隆抗体群体中的每个单独的抗体分子与其他抗体分子相同。这种特性与抗体的多克隆群体的特性相反,所述抗体的多克隆群体包含具有多种不同序列的抗体。单克隆抗体可以通过许多公知的方法来制备(Smith et al.(2004)J.Clin.Pathol.57,912-917;和Nelson et al.,J Clin Pathol(2000),53,111-117)。例如,单克隆抗体可以通过永生化B细胞来制备,例如通过与骨髓瘤细胞融合以产生杂交瘤细胞系或者通过用诸如EBV的病毒感染B细胞。重组技术还可以用来在体外通过用携带编码抗体的核苷酸的人工序列的质粒转化宿主细胞来从宿主细胞的克隆群体制备抗体。
如本文中所用,术语“杂交瘤”或“杂交瘤细胞”指由融合产抗体的淋巴细胞和不产抗体的癌细胞而产生的细胞或细胞系(通常为骨髓瘤或淋巴瘤细胞)。如本领域普通技术人员所知的,杂交瘤可增殖并持续供应产生特定单克隆抗体。用于产生杂交瘤的方法为本领域已知的(见例如,Harlow&Lane,1988)。当提及术语“杂交瘤”或“杂交瘤细胞”时,其还包括杂交瘤的亚克隆和后代细胞。
如本文所用,全长抗体是具有两条全长重链(例如VH-CH1-CH2-CH3或VH-CH1-CH2-CH3-CH4)和两条全长轻链(VL-CL)和铰链区的抗体,例如通过抗体分泌B细胞天然产生的抗体以及合成产生的具有相同结构域的抗体。
术语“嵌合抗体”是指这样的抗体,其中可变区序列源自一个物种,恒定区序列源自另一物种,如其中可变区序列源自小鼠抗体及恒定区序列源自人抗体的抗体。
“人源化”抗体是指非人(例如小鼠)抗体形式,其是嵌合的免疫球蛋白、免疫球蛋白链或者其片段(如Fv、Fab、Fab'、F(ab')2或者抗体的其它抗原结合亚序列),含有源自非人免疫球蛋白的最小序列。优选地,人源化抗体是人免疫球蛋白(接受者抗体),其中接受者抗体的互补决定区(CDR)的残基由来自具有希望的特异性、亲和性和能力的非人物种(供体抗体)如小鼠、大鼠或者兔的CDR残基置换。
此外,在人源化中,还可能对VH和/或VL的CDR1、CDR2和/或CDR3区内的氨基酸残基进行突变,由此改善抗体的一或多种结合特性(例如亲和性)。可进行例如PCR介导的突变引入突变,其对抗体结合或其它功能特性的影响可利用本文所述的体外或体内测试评估。通常,引入保守性突变。此类突变可为氨基酸取代、添加或缺失。另外,CDR内的突变通常不超过一个或两个。因此,本公开所述人源化抗体还涵盖CDR内包含1或2两个氨基酸突变的抗体。
如本文所用,术语“CDR”指互补决定区(complementarity-determining region),已知抗体分子的每个重链和轻链具有3个CDR。CDR也称作高变区,且存在于抗体的每个重链和轻链的可变区中,在CDR的一级结构中具有非常高的变异性位点。本说明书中,重链的CDR由来自重链的氨基端序列的氨基端的CDR1、CDR2、CDR3表示,轻链的CDR由来自轻链的氨基端序列的氨基端的CDR1、CDR2、CDR3表示。这些位点在三级结构中彼此临近,并决定抗体所结合的抗原的特异性。
如本文所用,术语“表位”指抗体的互补位结合的抗原上的任何抗原决定簇。表位决定簇通常包含分子的化学活性表面分型,例如氨基酸或糖侧链,并且通常具有特定的三维结构特征以及特定的电荷特征。
如本文所用,关于抗体或其抗原结合片段的“特异性结合”或“免疫特异性地结合”在本文中可交换使用,并且指抗体或抗原结合片段通过抗体和抗原的抗体结合位点之间的非共价相互作用与同种抗原形成一个或多个非共价键的能力。所述抗原可以是分离的抗原或存在于肿瘤细胞。通常,免疫特异性地结合(或特异性结合)抗原的抗体是以约或1×107M-1或1×108M-1或更大的亲和常数Ka(或者1×10-7M或1×10-8M或更低的解离常数(Kd))结合所述抗原。亲和常数可以通过抗体反应的标准动力学方法来测定,例如,免疫测定、表面等离子共振(SPR)(Rich and Myszka(2000)Curr.Opin.Biotechnol 11:54;Englebienne(1998)Analyst.123:1599)、等温滴定量热法(ITC)或本领域已知的其他动力学相互作用测定(参见,例如,Paul,ed.,Fundamental Immunology,2nd ed.,Raven Press,New York,pages 332-336(1989);还参见描述用于计算抗体的结合亲和力的示例性SPR和ITC方法的美国专利第7,229,619号)。用于实时检测和监测结合速率的仪器和方法是已知的,并且可商购(参见,BiaCore 2000,Biacore AB,Upsala,Sweden and GE Healthcare LifeSciences;Malmqvist(2000)Biochem.Soc.Trans.27:335)。
如本文所用,术语“多核苷酸”和“核酸分子”指包含至少两个连接的核苷酸或核苷酸衍生物的寡聚体或聚合物,包括通常通过磷酸二酯键连接在一起的脱氧核糖核酸(DNA)和核糖核酸(RNA)。如本文所使用,术语“核酸分子”意欲包括DNA分子及RNA分子。核酸分子可为单链或双链,且可为cDNA。
如本文所用,分离的核酸分子是从存在于核酸分子的天然来源中的其他核酸分子分离的核酸分子。诸如cDNA分子的“分离的”核酸分子可以在通过重组技术制备时基本上不含其他细胞物质或培养基,或者在化学合成时基本上不含化学前体或其他化学成分。本文所提供的示例性分离的核酸分子包括编码所提供的抗体或抗原结合片段的分离的核酸分子。
如本文所用,关于核酸序列、区域、元件或结构域的“可操作地连接”表示核酸区域互相功能相关。例如,启动子可以可操作地连接至编码多肽的核酸,从而所述启动子调控或介导所述核酸的转录。
亦提供本文所述序列表中所述序列的“保守序列修饰”,即不消除由核苷酸序列编码或含有氨基酸序列的抗体与抗原的结合的核苷酸及氨基酸序列修饰。这些保守序列修饰包括保守核苷酸及氨基酸取代以及核苷酸及氨基酸添加及缺失。例如,可通过本领域已知的标准技术(例如定点诱变及PCR介导的诱变)将修饰引入本文所述的序列表中。保守序列修饰包括保守氨基酸取代,其中氨基酸残基被替换为具有类似侧链的氨基酸残基。具有类似侧链的氨基酸残基的家族是本领域中已有定义的。这些家族包括具有碱性侧链的氨基酸(例如赖氨酸、精氨酸、组氨酸)、具有酸性侧链的氨基酸(例如天冬氨酸、谷氨酸)、具有不带电极性侧链的氨基酸(例如甘氨酸、天冬酰胺、谷氨酰胺、丝氨酸、苏氨酸、酪氨酸、半胱氨酸、色氨酸)、具有非极性侧链的氨基酸(例如丙氨酸、缬氨酸、亮氨酸、异亮氨酸、脯氨酸、苯丙氨酸、甲硫氨酸)、具有β分枝侧链的氨基酸(例如苏氨酸、缬氨酸、异亮氨酸)及具有芳香族侧链的氨基酸(例如酪氨酸、苯丙氨酸、色氨酸、组氨酸)。因此,抗CD20、BCMA或GPC3抗体中的预测的非必需氨基酸残基优选被来自同一侧链家族的另一氨基酸残基替代。鉴定不消除抗原结合的核苷酸及氨基酸保守取代的方法为本领域所熟知(例如,参见Brummell etal.,Biochem.32:1180-1187(1993);Kobayashi et al.,Protein Eng.12(10):879-884(1999);Burks et al.,Proc.Natl.Acad.Sci.USA 94:412-417(1997))。
作为另一选择,在另一实施方案中,可通过例如饱和诱变沿抗GCD20、BCMA或PC3抗体编码序列的全部或一部分随机引入突变,且可针对改良的结合活性筛选所得经修饰抗CD20、BCMA或GPC3抗体。
如本文所用,“表达”指通过多核苷酸的转录和翻译产生多肽的过程。多肽的表达水平可以利用本领域已知的任何方法来评价,包括例如测定从宿主细胞产生的多肽的量的方法。这类方法可以包括但不限于通过ELISA定量细胞裂解物中的多肽,凝胶电泳之后考马斯蓝染色,Lowry蛋白测定以及Bradford蛋白测定。
如本文所用,“宿主细胞”是用于接受、保持、复制和扩增载体的细胞。宿主细胞还可以用来表达载体所编码的多肽。当宿主细胞分裂时,载体中所含的核酸复制,从而扩增核酸。宿主细胞可以是真核细胞或原核细胞。合适的宿主细胞包括但不限于CHO细胞、各种COS细胞、HeLa细胞、HEK细胞例如HEK 293细胞。
如本文所用,“载体”是可复制的核酸,当载体转化入适当的宿主细胞时,可以从该载体表达一种或多种异源蛋白。关于载体包括那些通常通过限制酶切消化和连接可以将编码多肽或其片段的核酸引入其中的载体。关于载体还包括那些包含编码多肽的核酸的载体。载体用来将编码多肽的核酸引入宿主细胞,用于扩增核酸或者用于表达/展示核酸所编码的多肽。载体通常保持游离,但是可以设计为使基因或其部分整合入基因组的染色体。还考虑人工染色体的载体,例如酵母人工载体和哺乳动物人工染色体。这类媒介物的选择和用途是本领域技术人员公知的。
如本文所用,载体还包括“病毒载体”或“病毒的载体”。病毒的载体是工程化的病毒,其可操作地连接至外源基因以将外源基因转移(作为媒介物或穿梭(shuttle))入细胞。
如本文所用,“表达载体”包括能够表达DNA的载体,所述DNA与诸如启动子区的能够影响这类DNA片段表达的调控序列可操作地连接。这类额外的片段可以包括启动子和终止子序列,并且任选地可以包括一个或多个复制起点、一个或多个选择标记、增强子、多腺苷酸化信号等。表达载体一般来源于质粒或病毒DNA,或者可以包含这两者的元件。因此,表达载体指重组DNA或RNA构建体,例如质粒、噬菌体、重组病毒或其他载体,当引入适当的宿主细胞时,导致克隆DNA的表达。适当的表达载体是本领域技术人员公知的,并且包括在真核细胞和/或原核细胞中可复制的表达载体以及保持游离的表达载体或者整合入宿主细胞基因组的表达载体。
如本文所用,“治疗”患有疾病或疾病状况的个体表示所述个体的症状部分或全部缓解,或者在治疗后保持不变。因此,治疗包括预防、治疗和/或治愈。预防指防止潜在疾病和/或防止症状恶化或疾病发展。治疗还包括所提供的任何抗体或其抗原结合片段以及本文所提供的组合物的任何药学用途。
如本文所用,“疗效”表示由个体的治疗所导致的效果,其改变、通常改良或改善疾病或疾病状况的症状,或者治愈疾病或疾病状况。
如本文所用,“治疗有效量”或“治疗有效剂量”指施用于对象之后至少足以产生疗效的物质、化合物、材料或包含化合物的组合物的量。因此,其为防止、治愈、改善、阻滞或部分阻滞疾病或病症的症状所必需的量。
如本文所用,“预防有效量”或“预防有效剂量”指在施用于对象时会具有预期的预防效果的物质、化合物、材料或包含化合物的组合物的量,例如,防止或延迟疾病或症状的发生或复发,减少疾病或症状发生或复发的可能性。完全预防有效剂量不必通过施用一个剂量发生,并且可以仅在施用一系列剂量之后发生。因此,预防有效量可以在一次或多次施用中施用。
如本文中所使用的,术语“患者”是指哺乳动物,例如人。
II.具体实施方案详述
在一方面,本公开提供了一种双特异性抗体或其抗原结合片段,其包含:
(a)第一抗原结合部分或其抗原结合片段,所述第一抗原结合部分包含第一轻链和第一重链,所述第一轻链为κ型轻链,所述第一抗原结合部分包含与第一抗原结合的第一结合结构域;和
(b)第二抗原结合部分或其抗原结合片段,所述第二抗原结合部分包含第二轻链和第二重链,所述第二轻链为λ型轻链,所述第二抗原结合部分包含与第二抗原结合的第二结合结构域。
在一些实施方案中,所述第二抗原为CD3抗原。
在一些实施方案中,所述第二抗原结合部分的第二轻链可变区具有Gln40Glu突变(VλCD3:Gln40Glu);所述第二抗原结合部分的第二重链可变区具有Gln39Lys突变(VHCD3:Gln39Lys)。
在一些实施方案中,所述第二结合结构域包含选自氨基酸序列SEQ ID NO:7-9、14、15、20、21或其任何变体的第二轻链CDR;和/或选自氨基酸序列SEQ ID NO:26-28、31、34、40、43、46、47或其任何变体的第二重链CDR。
在一些实施方案中,所述第二结合结构域包含选自氨基酸序列SEQ ID NO:7、14或其任何变体的第二轻链CDR1,选自氨基酸序列SEQ ID NO:8、15、20或其任何变体的第二轻链CDR2,选自氨基酸序列SEQ ID NO:9、21或其任何变体的第二轻链CDR3;和/或选自氨基酸序列SEQ ID NO:26、31、46或其任何变体的第二重链CDR1,选自氨基酸序列SEQ ID NO:27、47或其任何变体的第二重链CDR2,选自氨基酸序列SEQ ID NO:28、34、37、40、43或其任何变体的第二重链CDR3。
在一些实施方案中,所述第二结合结构域的第二轻链CDR选自:分别包含氨基酸序列SEQ ID NO:7、8、9的第二轻链CDR1、CDR2及CDR3序列;分别包含氨基酸序列SEQ ID NO:14、15、9的第二轻链CDR1、CDR2及CDR3序列;分别包含氨基酸序列SEQ ID NO:7、8、21的第二轻链CDR1、CDR2及CDR3序列;分别包含氨基酸序列SEQ ID NO:7、20、21的第二轻链CDR1、CDR2及CDR3序列;和/或所述第二结合结构域的重链CDR选自:分别包含氨基酸序列SEQ IDNO:26、27、28的第二重链CDR1、CDR2及CDR3序列;分别包含氨基酸序列SEQ ID NO:31、27、28的第二重链CDR1、CDR2及CDR3序列;分别包含氨基酸序列SEQ ID NO:31、27、34的第二重链CDR1、CDR2及CDR3序列;分别包含氨基酸序列SEQ ID NO:31、27、37的第二重链CDR1、CDR2及CDR3序列;分别包含氨基酸序列SEQ ID NO:31、27、40的第二重链CDR1、CDR2及CDR3序列;分别包含氨基酸序列SEQ ID NO:31、27、43的第二重链CDR1、CDR2及CDR3序列;分别包含氨基酸序列SEQ ID NO:46、47、28的第二重链CDR1、CDR2及CDR3序列。
在一些实施方案中,所述第二结合结构域包含选自氨基酸序列SEQ ID NO:5、10、12、16、18、22或其任何变体的第二轻链可变区;和/或选自氨基酸序列SEQ ID NO:24、29、32、35、38、41、44、48、50、52或其任何变体的第二重链可变区。
在一些实施方案中,所述第二结合结构域包含氨基酸序列SEQ ID NO:18或其任何变体的第二轻链可变区;和氨基酸序列SEQ ID NO:24或其任何变体的第二重链可变区。
在一些实施方案中,所述第二结合结构域包含氨基酸序列SEQ ID NO:5或其任何变体的第二轻链可变区;和氨基酸序列SEQ ID NO:48或其任何变体的第二重链可变区。
在一些实施方案中,所述第二结合结构域包含氨基酸序列SEQ ID NO:18或其任何变体的第二轻链可变区;和氨基酸序列SEQ ID NO:48或其任何变体的第二重链可变区。
在一些实施方案中,所述第二结合结构域包含氨基酸序列SEQ ID NO:5或其任何变体的第二轻链可变区;和氨基酸序列SEQ ID NO:50或其任何变体的第二重链可变区。
在一些实施方案中,所述第二结合结构域包含氨基酸序列SEQ ID NO:10或其任何变体的第二轻链可变区;和氨基酸序列SEQ ID NO:50或其任何变体的第二重链可变区。
在一些实施方案中,所述第二结合结构域包含氨基酸序列SEQ ID NO:12或其任何变体的第二轻链可变区;和氨基酸序列SEQ ID NO:50或其任何变体的第二重链可变区。
在一些实施方案中,所述第二结合结构域包含氨基酸序列SEQ ID NO:18或其任何变体的第二轻链可变区;和氨基酸序列SEQ ID NO:50或其任何变体的第二重链可变区。
在一些实施方案中,所述第二抗原结合部分的第二轻链选自氨基酸序列SEQ IDNO:58和66;和/或所述第二抗原结合部分的第二重链选自氨基酸序列SEQ ID NO:60和68。在一些优选的实施方案中,所述第二抗原结合部分的第二轻链为氨基酸序列SEQ ID NO:58;和所述第二抗原结合部分的第二重链为氨基酸序列SEQ ID NO:60。在一些优选的实施方案中,所述第二抗原结合部分的第二轻链为氨基酸序列SEQ ID NO:66;和所述第二抗原结合部分的第二重链为氨基酸序列SEQ ID NO:68。
在一些实施方案中,所述第一抗原为肿瘤抗原。
在一些优选实施方案中,所述肿瘤抗原选自:CD19、CD20、CD22、CD30、CD38、CD72、CD180、CD171(L1CAM)、CD123、CD133、CD138、CD37、CD70、CD79a、CD79b、CD56、CD74、CD166、CD71、CLL-1/CLECK12A、ROR1、BCMA、GPC3、间皮素、CD33/IL3Ra、c-Met、PSCA、PSMA、糖脂F77、EGFRvIII、GD-2、MY-ESO-1、Her2、Her3、MUC1、MUC17、Claudin18或MAGEA3。
在一个具体实施方案中,所述肿瘤相关抗原选自CD20、BCMA和GPC3。
在一些实施方案中,所述第一抗原为CD20抗原。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链可变区具有Gln38Lys突变(VκCD20:Gln38Lys)。在一些优选的实施方案中,所述第一抗原结合部分的第一重链可变区具有Gln39Glu突变(VHCD20:Gln39Glu)。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链可变区具有Gln38Lys突变(VκCD20:Gln38Lys),且第一轻链恒定区具有Glu123Lys和Gln124Lys突变(Vκ-CkCD20:Gln38Lys\Glu123Lys\Gln124Lys)。在一些优选的实施方案中,所述第一抗原结合部分的第一重链可变区具有Gln39Glu突变(VHCD20:Gln39Glu),且第一重链恒定区具有Lys152Glu和Lys218Glu突变(VH-CH1CD20:Gln39Glu\Lys152Glu\Lys218Glu)。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链选自氨基酸序列SEQID NO:54、62和70;和/或所述第一抗原结合部分的第一重链选自氨基酸序列SEQ ID NO:56、64和72。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:54,和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:56。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:62,和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:64。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:70,和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:72。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:54,和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:56,所述第二抗原结合部分的第二轻链为氨基酸序列SEQ ID NO:58,和所述第二抗原结合部分的第二重链为氨基酸序列SEQ ID NO:60。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:62,和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:64,所述第二抗原结合部分的第二轻链为氨基酸序列SEQ ID NO:66,和所述第二抗原结合部分的第二重链为氨基酸序列SEQ ID NO:68,所述第二抗原结合部分的第二轻链为氨基酸序列SEQ ID NO:58,和所述第二抗原结合部分的第二重链为氨基酸序列SEQ ID NO:60。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:70,和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:72,所述第二抗原结合部分的第二轻链为氨基酸序列SEQ ID NO:66,和所述第二抗原结合部分的第二重链为氨基酸序列SEQ ID NO:68。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:62,和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:64,所述第二抗原结合部分的第二轻链为氨基酸序列SEQ ID NO:58,和所述第二抗原结合部分的第二重链为氨基酸序列SEQ ID NO:60。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:54,和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:56,所述第二抗原结合部分的第二轻链为氨基酸序列SEQ ID NO:66,和所述第二抗原结合部分的第二重链为氨基酸序列SEQ ID NO:68。
在一些实施方案中,所述第一抗原为BCMA抗原。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链可变区具有Gln42Lys突变(VκBCMA:Gln42Lys)。在一些优选的实施方案中,所述第一抗原结合部分的第一重链可变区具有Gln39Glu突变(VHBCMA:Gln39Glu)。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链选自氨基酸序列SEQID NO:80和84;和/或所述第一抗原结合部分的第一重链选自氨基酸序列SEQ ID NO:82和86。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:80;和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:82。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:84;和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:82。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:80;和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:86。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:84;和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:86。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:80,和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:82,所述第二抗原结合部分的第二轻链为氨基酸序列SEQ ID NO:66,和所述第二抗原结合部分的第二重链为氨基酸序列SEQ ID NO:68。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:84,和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:82,所述第二抗原结合部分的第二轻链为氨基酸序列SEQ ID NO:66,和所述第二抗原结合部分的第二重链为氨基酸序列SEQ ID NO:68。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:80,和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:86,所述第二抗原结合部分的第二轻链为氨基酸序列SEQ ID NO:66,和所述第二抗原结合部分的第二重链为氨基酸序列SEQ ID NO:68。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:84,和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:86,所述第二抗原结合部分的第二轻链为氨基酸序列SEQ ID NO:66,和所述第二抗原结合部分的第二重链为氨基酸序列SEQ ID NO:68。
在一些实施方案中,所述第一抗原为GPC3抗原。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链可变区具有Gln43Lys和Gln39Glu突变(VκGPC3:Gln43Lys;VHGPC3:Gln39Glu)。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链选自氨基酸序列SEQID NO:88和92;和/或所述第一抗原结合部分的第一重链选自氨基酸序列SEQ ID NO:90和94。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:88,和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:90。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:92,和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:94。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:88,和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:90,所述第二抗原结合部分的第二轻链为氨基酸序列SEQ ID NO:66,和所述第二抗原结合部分的第二重链为氨基酸序列SEQ ID NO:68。
在一些优选实施方案中,所述第一抗原结合部分的第一轻链为氨基酸序列SEQ IDNO:92,和所述第一抗原结合部分的第一重链为氨基酸序列SEQ ID NO:94,所述第二抗原结合部分的第二轻链为氨基酸序列SEQ ID NO:66,和所述第二抗原结合部分的第二重链为氨基酸序列SEQ ID NO:68。
在一些实施方案中,所述双特异抗体的第一抗原结合部分和/或第二抗原结合部分的Fc部分采用knob-into-hole结构。在一些优选的实施方案中,采用人IgG4 knob-into-hole结构。
在一些实施方案中,所述双特异抗体的第一抗原结合部分和/或第二抗原结合部分还具有Ser228Pro、Leu235Glu和/或Pro329Ala突变。
在一方面,本公开提供了编码前述双特异性抗体或其抗原结合部分的核酸。
在一些优选实施方案中,所述第二抗原结合部分结合CD3抗原,所述第二抗原结合部分的第二轻链可变区的编码核酸选自核苷酸序列SEQ ID NO:6、11、13、17、19和23;和/或所述第二抗原结合部分的第二重链可变区的编码核酸选自核苷酸序列SEQ ID NO:25、30、33、36、39、42、45、49、51和53。在一些优选实施方案中,所述第二抗原结合部分的第二轻链的编码核酸选自核苷酸序列SEQ ID NO:59和67;和/或所述第二抗原结合部分的第二重链的编码核酸选自核苷酸序列SEQ ID NO:61和69。在一些优选实施方案中,所述第二抗原结合部分的第二轻链的编码核酸选自核苷酸序列SEQ ID NO:59,和所述第二抗原结合部分的第二重链的编码核酸选自核苷酸序列SEQ ID NO:61。在一些优选实施方案中,所述第二抗原结合部分的第二轻链的编码核酸选自核苷酸序列SEQ ID NO:67,和所述第二抗原结合部分的第二重链的编码核酸选自核苷酸序列SEQ ID NO:69。
在一些优选实施方案中,所述第一抗原结合部分结合CD20抗原,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:55、63和71;和/或所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:57、65和73。在一些优选实施方案中,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:55,和所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:57。在一些优选实施方案中,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:63,和所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:65。在一些优选实施方案中,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ IDNO:71,和所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:73。
在一些优选实施方案中,所述第一抗原结合部分结合BCMA抗原,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:81和85;和/或所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:83和87。在一些优选实施方案中,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:81,和所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:83。在一些优选实施方案中,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:85,和所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:83。在一些优选实施方案中,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:81,和所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:87。在一些优选实施方案中,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ IDNO:85,和所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:87。
在一些优选实施方案中,所述第一抗原结合部分结合GPC3抗原,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:89和93;和/或所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:91和95。在一些优选实施方案中,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:89,和所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:91。在一些优选实施方案中,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:93,和所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:95。
在一些优选实施方案中,所述双特异性抗体的所述第一抗原结合部分结合CD20抗原,所述第二抗原结合CD3抗原,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:55,所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ IDNO:57,所述第二抗原结合部分的第二轻链的编码核酸选自核苷酸序列SEQ ID NO:59,和所述第二抗原结合部分的第二重链的编码核酸选自核苷酸序列SEQ ID NO:61。在一些优选实施方案中,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:63,和所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:65,所述第二抗原结合部分的第二轻链的编码核酸选自核苷酸序列SEQ ID NO:67,和所述第二抗原结合部分的第二重链的编码核酸选自核苷酸序列SEQ ID NO:69,所述第二抗原结合部分的第二轻链的编码核酸选自核苷酸序列SEQ ID NO:59,和所述第二抗原结合部分的第二重链的编码核酸选自核苷酸序列SEQ ID NO:61。在一些优选实施方案中,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:71,和所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:73,所述第二抗原结合部分的第二轻链的编码核酸选自核苷酸序列SEQ ID NO:67,和所述第二抗原结合部分的第二重链的编码核酸选自核苷酸序列SEQ ID NO:69。在一些优选实施方案中,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:63,和所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:65,所述第二抗原结合部分的第二轻链的编码核酸选自核苷酸序列SEQ ID NO:59,和所述第二抗原结合部分的第二重链的编码核酸选自核苷酸序列SEQ IDNO:61。在一些优选实施方案中,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:55,所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ IDNO:57,所述第二抗原结合部分的第二轻链的编码核酸选自核苷酸序列SEQ ID NO:67,和所述第二抗原结合部分的第二重链的编码核酸选自核苷酸序列SEQ ID NO:69。
在一些优选实施方案中,所述双特异性抗体的所述第一抗原结合部分结合BCMA抗原,所述第二抗原结合CD3抗原,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:81,所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ IDNO:83,所述第二抗原结合部分的第二轻链的编码核酸选自核苷酸序列SEQ ID NO:67,和所述第二抗原结合部分的第二重链的编码核酸选自核苷酸序列SEQ ID NO:69。在一些优选实施方案中,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:85,所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:83,所述第二抗原结合部分的第二轻链的编码核酸选自核苷酸序列SEQ ID NO:67,和所述第二抗原结合部分的第二重链的编码核酸选自核苷酸序列SEQ ID NO:69。在一些优选实施方案中,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:81,所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:87,所述第二抗原结合部分的第二轻链的编码核酸选自核苷酸序列SEQ ID NO:67,和所述第二抗原结合部分的第二重链的编码核酸选自核苷酸序列SEQ ID NO:69。在一些优选实施方案中,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:85,所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:87,所述第二抗原结合部分的第二轻链的编码核酸选自核苷酸序列SEQ ID NO:67,和所述第二抗原结合部分的第二重链的编码核酸选自核苷酸序列SEQ ID NO:69。
在一些优选实施方案中,所述双特异性抗体的所述第一抗原结合部分结合GPC3抗原,所述第二抗原结合CD3抗原,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:89,所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ IDNO:91,所述第二抗原结合部分的第二轻链的编码核酸选自核苷酸序列SEQ ID NO:67,和所述第二抗原结合部分的第二重链的编码核酸选自核苷酸序列SEQ ID NO:69。在一些优选实施方案中,所述第一抗原结合部分的第一轻链的编码核酸选自核苷酸序列SEQ ID NO:93,所述第一抗原结合部分的第一重链的编码核酸选自核苷酸序列SEQ ID NO:95,所述第二抗原结合部分的第二轻链的编码核酸选自核苷酸序列SEQ ID NO:67,和所述第二抗原结合部分的第二重链的编码核酸选自核苷酸序列SEQ ID NO:69。
在一方面,本公开提供了包含前述核酸的载体。
在一方面,本公开提供了包含前述核酸或载体的细胞。
在一方面,本公开提供了包含前述双特异性抗体或其抗原结合部分、核酸、载体和/或细胞的组合物。
在一方面,本公开提供了包含共价附着至治疗部分的前述双特异性抗体或其抗原结合部分的抗体-药物偶联物。
优选地,所述治疗部分选自细胞毒性部分、化疗剂、细胞因子、免疫抑制剂、免疫刺激剂、裂解肽或放射性同位素。
本公开的抗体在各种肿瘤抗原被不利地表达或发现的疾病中可用作治疗或诊断工具。
在一个与肿瘤抗原相关的疾病实施方案中,肿瘤抗原在患病组织或器官的细胞中的表达与在健康组织或器官中的状态相比有所增加。增加是指增加至少10%、特别是至少20%、至少50%、至少100%、至少200%、至少500%、至少1000%、至少10000%或甚至更多。在一个实施方案中,表达仅在患病组织中发现,而在相应健康组织中的表达受阻抑。根据本公开,与肿瘤抗原相关的疾病包括肿瘤。
在一些实施方案中,所述与肿瘤抗原相关的疾病为与CD20相关疾病。在一些优选的实施方案中,与CD20相关的疾病包括B细胞疾病,例如B细胞增殖性病症,特别是CD20阳性B细胞病症;优选地,所述疾病选自非霍奇金淋巴瘤(NHL),急性淋巴细胞性白血病(ALL),慢性淋巴细胞性白血病(CLL),弥漫性大B细胞淋巴瘤(DLBCL),滤泡性淋巴瘤(FL),套细胞淋巴瘤(MCL),边缘区淋巴瘤(MZL),以及多发性骨髓瘤(MM)和霍奇金淋巴瘤(HL)。
在一些实施方案中,所述与肿瘤抗原相关的疾病为与BCMA相关疾病;优选地,与BCMA相关的疾病包括B细胞疾病;优选地,所述疾病是癌症;更优选地,所述癌症是B-细胞相关癌症,其选自多发性骨髓瘤、恶性浆细胞瘤、霍奇金淋巴瘤、结节性淋巴细胞为主的霍奇金淋巴瘤、Kahler’s病和骨髓性白血病、浆细胞白血病、浆细胞瘤、B-细胞幼淋巴细胞白血病、毛细胞白血病、B-细胞非霍奇金淋巴瘤(NHL)、急性髓性白血病(AML)、慢性淋巴细胞白血病(CLL)、急性淋巴细胞白血病(ALL)、慢性髓性白血病(CML)、滤泡性淋巴瘤、伯基特淋巴瘤、边缘区淋巴瘤、套细胞淋巴瘤、大细胞淋巴瘤、前体B-淋巴细胞淋巴瘤、髓性白血病、瓦尔登斯特伦巨球蛋白血症、弥漫性大B细胞淋巴瘤、滤泡性淋巴瘤、边缘区淋巴瘤、粘膜相关淋巴组织淋巴瘤、小细胞淋巴细胞性淋巴瘤、套细胞淋巴瘤、伯基特淋巴瘤、原发性纵隔(胸腺)大B细胞淋巴瘤、淋巴浆细胞淋巴瘤、瓦尔登斯特伦巨球蛋白血症、淋巴结边缘区B细胞淋巴瘤、脾边缘区淋巴瘤、血管内大B-细胞淋巴瘤、原发性渗出性淋巴瘤、淋巴瘤样肉芽肿病、富含T细胞/组织细胞的大B-细胞淋巴瘤、原发性中枢神经系统淋巴瘤、原发性皮肤弥漫性大B-细胞淋巴瘤(腿型)、老年人EBV阳性弥漫性大B-细胞淋巴瘤、炎症相关的弥漫性大B-细胞淋巴瘤、血管内大B-细胞淋巴瘤、ALK阳性大B-细胞淋巴瘤、浆母细胞淋巴瘤、HHV8相关的多中心Castleman病中产生的大B-细胞淋巴瘤、未分类的具有弥漫性大B-细胞淋巴瘤和伯基特淋巴瘤中间特征的B-细胞淋巴瘤、未分类的具有弥漫性大B-细胞淋巴瘤和经典霍奇金淋巴瘤中间特征的B-细胞淋巴瘤以及其他B-细胞相关淋巴瘤;更优选地,所述B细胞疾病是B细胞障碍;优选地,浆细胞障碍选自:多发性骨髓瘤、浆细胞瘤、浆细胞白血病、巨球蛋白血症、淀粉样变性、华氏巨球蛋白血症、孤立性骨浆细胞瘤、髓外浆细胞瘤、骨硬化性骨髓瘤、重链病、意义不明确的单克隆丙种球蛋白病以及郁积型多发性骨髓瘤;优选地,所述疾病是自身免疫性病症,如系统性红斑性狼疮或类风湿性关节炎。
在一些实施方案中,该治疗剂包含特异性结合活化性T细胞抗原的抗体。
在一个实施方案中,该治疗剂包含特异性结合CD3,特别是CD3ε的抗体。
用本公开的双特异性抗体治疗的疾病和症状方法包括下述步骤:向所述哺乳动物施用治疗有效量的前述任一方面的抗体或其抗原结合片段或核酸分子或载体或细胞或药物组合物。
在一些实施方案中,本公开提供治疗或预防癌症疾病的方法,其包括向患者施用能够结合GPC3的抗体,其中施用所述抗体以提供至少40μg/ml的血清水平。在不同实施方案中,施用所述抗体以提供至少50μg/ml、至少150μg/ml、至少300μg/ml、至少400μg/ml或至少500μg/ml的血清水平。在不同实施方案中,施用所述抗体以提供不超过800μg/ml、700μg/ml、600μg/ml、550μg/ml或500μg/ml的血清水平。在一个实施方案中,所提供的血清水平为40μg/ml至700μg/ml,优选为40μg/ml至600μg/ml,优选为50μg/ml至500μg/ml,如150μg/ml至500μg/ml或者300μg/ml至500μg/ml。如本说明书中使用的术语“血清水平”,其意指所讨论的物质在血清中的浓度。在一个实施方案中,提供所述血清水平至少7天或至少14天。在一个实施方案中,所述方法包括施用至少300mg/m2的抗体剂量,如至少600mg/m2,且优选至多1500mg/m2,至多1200mg/m2或至多1000mg/m2。
在一些实施方案中,本公开提供治疗或预防癌症疾病的方法,其包括向患者施用能够结合GPC3的抗体,其中以至少300mg/m2,如至少600mg/m2,且优选至多1500mg/m2,至多1200mg/m2或至多1000mg/m2的剂量施用所述抗体。
在一些实施方案中,本公开提供治疗或预防癌症疾病的方法,其包括向患者施用能够结合GPC3的抗体,其中所述患者的至少50%,优选为60%、70%、80%或90%的癌细胞为GPC3阳性和/或所述患者的至少40%,优选为50%或60%的癌细胞为GPC3的表面表达阳性。在该方面,本公开还提供治疗或预防癌症疾病的方法,所述方法包括:a.鉴定显示至少50%,优选为60%、70%、80%或90%的GPC3阳性癌细胞和/或至少40%,优选为50%或60%的癌细胞的患者,所述癌细胞为GPC3的表面表达阳性;以及b.向所述患者施用能够结合GPC3的抗体。在一个实施方案中,所述患者的至少95%或至少98%的癌细胞为GPC3阳性的。在一个实施方案中,所述患者的至少70%、至少80%或至少90%的癌细胞为GPC3的表面表达阳性。
在本文所述的任何方面的方法的一个实施方案中,癌症疾病的治疗结果是实现病情稳定。在一个实施方案中,病情稳定实现至少2个月、至少3个月或至少6个月。
在一些实施方案中,本公开提供实现癌症患者的病情稳定的方法,其包括向所述患者施用能够结合GPC3的抗体。在一个实施方案中,病情稳定实现至少2个月、至少3个月或至少6个月。
在本文所述的任何方面的方法的一个实施方案中,以单剂量或多剂量施用抗体。
在一些实施方案中,本公开提供治疗或预防癌症疾病的方法,其包括向患者施用能够结合GPC3的抗体,其中以多剂量施用所述抗体。
如果根据本公开以多次剂量施用所述抗体,则优选以至少3次剂量、至少4次剂量、至少5次剂量、至少6次剂量、至少7次剂量、至少8次剂量、至少9次剂量或至少10次剂量且优选至多30次剂量、25次剂量、20次剂量、15次剂量或10次剂量施用所述抗体。优选以至少7天、至少10天、至少14天或至少20天的时间间隔施用所述抗体的剂量。优选以7至30天、10至20天且优选为约14天的时间间隔施用所述抗体的剂量。
在一个实施方案中,施用所述抗体以便提供至少40μg/ml的血清水平。在不同实施方案中,施用所述抗体以便提供至少50μg/ml、至少150μg/ml、至少300μg/ml、至少400μg/ml或至少500μg/ml的血清水平。在不同实施方案中,施用所述抗体以便提供不超过800μg/ml、700μg/ml、600μg/ml、550μg/ml或500μg/ml的血清水平。在一个实施方案中,所提供的血清水平为40μg/ml至700μg/ml,优选为40μg/ml至600μg/ml,优选为50μg/ml至500μg/ml,如150μg/ml至500μg/ml或300μg/ml至500μg/ml。在一个实施方案中,提供所述血清水平至少7天或至少14天。在一个实施方案中,所述方法包括施用至少300mg/m2,如至少600mg/m2且优选至多1500mg/m2、至多1200mg/m2或至多1000mg/m2的抗体的剂量。
前述任一方面的抗体或其抗原结合片段或核酸分子或载体或细胞或药物组合物在制备用于治疗哺乳动物中GPC3相关病症的药物中的用途。
根据前述任一方面,任选地,所述抗体偶联其他药物,例如带标记或具有细胞毒性的偶联物。
在一方面,本公开还包括试剂盒,例如所述试剂盒包括本公开的抗体、其片段、同源物、其衍生物、核酸、载体、细胞、组合物等,例如带标记或具有细胞毒性的缀合物,以及抗体使用说明书、杀死特定类型细胞的偶联物等等。该说明书可包括在体外、体内或离体使用抗体、偶联物等的指导。抗体可以是液体形式或固体,通常是冻干的。该试剂盒可包含其它适宜的试剂,如缓冲液、重构溶液以及为了预定用途的其它必要成分。考虑了以预定量包装好的试剂组合与用于其用途的说明书,所述用途例如用于治疗用途或用于进行诊断测定。当抗体是带标记的时,例如用酶标记的,那么该试剂盒可包括底物和酶所需的辅因子(例如提供可检测生色团或荧光团的底物前体)。此外,其它添加剂,如稳定剂、缓冲液(例如封闭缓冲液或裂解缓冲液)等也可包括在内。多种试剂的相对量可以改变而提供试剂溶液的浓缩物,这就提供了用户灵活性、节省空间、节省试剂等。这些试剂也可以干粉形式提供,通常是冻干形式,包括赋形剂,它在溶解时可提供具有适当浓度的试剂溶液。
前述任一方面的抗体或其功能片段或核酸分子或载体或细胞或药物组合物或试剂盒在制备用于抑制GPC3结合的试剂中的用途。
此外,本公开的抗体还可用于免疫测定、纯化方法以及其它用到免疫球蛋白或其片段的方法。此类用途在本领域为人所熟知。
相应地,本公开还提供包含本公开的抗GPC3的抗体或其片段的组合物,所述抗体方便地和药学上可接受的载体、稀释剂或赋形剂组合,这是本领域的常规做法。
本公开所使用的术语“药物组合物”系指多种制备物的制剂。含有治疗有效量的多价抗体的制剂为无菌液体溶液、液体悬浮剂或冻干形式,任选地包含稳定剂或赋形剂。
本公开的抗体可以作为单独施用的组合物使用,或可与其它活性剂联合使用。
在一些实施方案中,本公开的人源化抗体与治疗部分(即药物)缀合。治疗部分可以是例如细胞毒素、化疗剂、细胞因子、免疫抑制剂、免疫刺激剂、裂解肽或放射性同位素。此类偶联物在本文中称为“抗体-药物偶联物”或“ADC”。
在一些实施方案中,抗体与细胞毒性部分偶联。细胞毒性部分可以例如选自以下:紫杉醇;细胞松弛素B;短杆菌肽D;溴化乙锭;吐根碱;丝裂霉素;依托泊苷;替尼泊苷;长春新碱;长春碱;秋水仙碱;多柔比星;柔红霉素;二羟基蒽二酮;微管蛋白抑制剂如美登素或其类似物或衍生物;抗有丝分裂剂如单甲基奥瑞他汀E或F或其类似物或衍生物;海兔毒素10或15或其类似物;伊立替康或其类似物;米托蒽醌;光辉霉素;放线菌素D;1-脱氢睾酮;糖皮质激素;普鲁卡因;丁卡因;利多卡因;普萘洛尔;嘌呤霉素;卡奇霉素或其类似物或衍生物;抗代谢药,如甲氨喋呤、6巯基嘌呤、6硫鸟嘌呤、阿糖胞苷、氟达拉滨、5氟尿嘧啶、癸二嗪、羟基脲、天冬酰胺酶、吉西他滨或克拉屈滨;烷化剂,如二氯甲基二乙胺、硫代嘌呤、苯丁酸氮芥、美法仑、卡莫司汀(BSNU)、洛莫司汀(CCNU)、环磷酰胺、白消安、二溴甘露醇、链脲佐菌素、达卡巴嗪(DTIC)、丙卡巴嗪、丝裂霉素C;铂类衍生物,如顺铂或卡铂;多卡霉素A、多卡霉素SA、雷切霉素(CC-1065)或其类似物或衍生物;抗生素,如放线菌素、博来霉素、柔红霉素、多柔比星、伊达比星、光霉素、丝裂霉素、米托蒽醌、普力霉素、安定霉素(AMC);吡咯并[2,1-c][1,4]-苯并二氮杂卓(PDB);白喉毒素及相关分子如白喉A链及其活性片段和杂合分子、蓖麻毒素如蓖麻毒素A或去糖基化蓖麻毒素A链毒素、霍乱毒素、志贺样毒素如SLT I、SLT II、SLT IIV、LT毒素、C3毒素、志贺毒素、百日咳毒素、破伤风毒素、大豆Bowman-Birk蛋白酶抑制剂、假单胞菌外毒素、阿罗林、皂草素、蒴莲根毒素、胶凝蛋白、相思豆毒素A链、蒴莲根毒素A链、α-sarcin、油桐(Aleurites fordii)蛋白、石竹素蛋白、美洲商陆蛋白如PAPI、PAPII和PAP-S、苦瓜(momordica charantia)抑制剂、泻果素、巴豆毒素、肥阜草(sapaonaria officinalis)抑制剂、白树毒素、丝裂霉素、局限曲菌素、酚霉素和依诺霉素毒素;核糖核酸酶(RNase);DNase I、葡萄球菌内毒素A;商陆抗病毒蛋白;白喉毒素和假单胞菌内毒素。
在一些实施方案中,抗体与奥瑞他汀或其肽类似物、衍生物或前药偶联。已经表明,奥瑞他汀干扰微管动力学、GTP水解以及核和细胞分裂并具有抗癌和抗真菌活性。例如,奥瑞他汀E可以与对乙酰基苯甲酸或苯甲酰基戊酸反应,分别产生AEB和AEVB。其他典型的奥瑞他汀衍生物包括AFP、MMAF(单甲基奥瑞他汀F)和MMAE(单甲基奥瑞他汀E)。合适的奥瑞他汀和奥瑞他汀的类似物、衍生物和前药,以及用于将奥瑞他汀与Ab偶联的合适接头描述于例如美国专利号5,635,483、5,780,588和6,214,345以及国际专利申请公开WO02088172、WO2004010957、WO2005081711、WO2005084390、WO2006132670、WO03026577、WO200700860、WO207011968和WO205082023。
在一些实施方案中,抗体与吡咯并[2,1-c][1,4]-苯并二氮杂卓(PDB)或其肽类似物、衍生物或前药偶联。合适的PDB以及PDB衍生物和相关技术描述于例如Hartley J.A.等,Cancer Res 2010;70(17):6849-6858;Antonow D.等,Cancer J 2008;14(3):154-169;Howard P.W.等,Bioorg Med Chem Lett 2009;19:6463-6466和Sagnou等,Bioorg MedChemLett2000;10(18):2083-2086。
在一些实施方案中,抗体与选自以下的细胞毒性部分偶联:蒽环类抗生素、美登素、卡奇霉素、多卡霉素、雷切霉素(CC-1065)、海兔毒素10、海兔毒素15、伊立替康、单甲基奥瑞他汀E、单甲基奥瑞他汀F、PDB,或它们任何的类似物、衍生物或前药。
在一些实施方案中,抗体与蒽环类抗生素或其类似物、衍生物或前药偶联。在一些实施方案中,抗体与美登素或其类似物、衍生物或前药偶联。在一些实施方案中,抗体与卡奇霉素或其类似物、衍生物或前药偶联。在一些实施方案中,抗体与多卡霉素或其类似物、衍生物或前药偶联。在一些实施方案中,抗体与雷切霉素(CC-1065)或其类似物、衍生物或前药偶联。在一些实施方案中,抗体与海兔霉素10或其类似物、衍生物或前药偶联。在一些实施方案中,抗体与海兔霉素15或其类似物、衍生物或前药偶联。在一些实施方案中,抗体与单甲基奥瑞他汀E或其类似物、衍生物或前药偶联。在一些实施方案中,抗体与单甲基奥瑞他汀F或其类似物、衍生物或前药偶联。在一些实施方案中,抗体与吡咯并[2,1-c][1,4]-苯并二氮杂卓或其类似物、衍生物或前药偶联。在一些实施方案中,抗体与伊立替康或其类似物、衍生物或前药偶联。
在一些实施方案中,抗体与细胞因子(例如IL-2、IL-4、IL-6、IL-7、IL-10、IL-12、IL-13、IL-15、IL-18、IL-23、IL-24、IL-27、IL-28a、IL-28b、IL-29、KGF、IFNa、IFN3、IFNy、GM-CSF、CD40L、Flt3配体、干细胞因子、安西司亭和TNFa)偶联。
在一些实施方案中,抗体与放射性同位素或含放射性同位素的螯合物偶联。例如,抗体可以与允许抗体与放射性同位素络合的螯合剂接头(例如DOTA、DTPA或噻西坦)偶联。抗体还可以或可选地包含一个或多个放射性标记的氨基酸或其他放射性标记的分子或与之偶联。放射性同位素的非限制性实例包括3H、14C、15N、35S、90Y、99Tc、125I、131I、186Re、213Bi、225Ac和227Th。为了治疗目的,可以使用发射β或α颗粒辐射的放射性同位素,例如131I、90Y、211At、212Bi、67Cu、186Re、188Re和212Pb。
将分子与抗体偶联的技术是本领域熟知的。通常,核酸分子分别通过N-羟基琥珀酰亚胺酯或马来酰亚胺官能团与抗体上的赖氨酸或半胱氨酸共价连接。据报道,使用工程化半胱氨酸或整合非天然氨基酸的偶联方法可改进偶联物的同质性。特别地,本领域技术人员还可以预期用含酰基供体谷氨酰胺的标签(例如含有Gin肽的标签或Q-标签)或通过多肽工程(例如通过多肽上的氨基酸缺失、插入、取代或突变)产生反应性的内源性谷氨酰胺工程化的含Fc多肽。然后,转谷氨酰胺酶可与胺供体剂(例如,包含或连接于反应性胺的小分子)共价交联,以形成稳定且均质的工程化含Fc多肽偶联物群,其中胺供体剂通过含酰基供体谷氨酰胺标签或可接近/暴露/反应性的内源性谷氨酰胺位点特异性地与含Fc多肽偶联(WO2012059882)。
应当理解,根据所述实施方案的治疗剂将与合适的药学上可接受的载体、赋形剂、以及其它被掺入制剂中以提供改善的转移、递送、耐受性等的试剂一同施用。大量适当的制剂可见于所有药物化学工作者已知的药典中:Remington's Pharmaceutical Sciences(第15版,Mack Publishing Company,Easton,Pa.(1975)),特别是其中Blaug、Seymour的第87章。这些制剂包括例如粉末、糊剂、膏剂、凝胶剂、蜡、油、脂质、含脂质(阳离子或阴离子)载体(例如LipofectinTM)、DNA缀合物、无水吸浆、水包油和油包水乳液、乳液聚乙二醇(各种分子量的聚乙二醇)、半固态凝胶以及含有聚乙二醇的半固态混合物。任何前述混合物均可适用于根据本公开的治疗或疗法,条件是制剂中的活性成分不被制剂灭活并且制剂在生理学上是相容的并耐受给药途径。
在一个实施方案中,可将所述抗体用作治疗剂。此类试剂将通常用于治疗、缓解和/或预防受试者的与异常肿瘤抗原表达、活性和/或信号传导相关的疾病或病理。可使用标准方法通过鉴定受试者,例如患有(或处于风险或发展)与异常肿瘤抗原表达、活性和/或信号传导相关的疾病或障碍,例如肿瘤抗原相关病症的人患者来实施治疗方案。将抗体制剂,优选对其靶抗原有高特异性和高亲和性的抗体制剂施用给受试者并且将通常因其与靶标结合而产生效应。施用的抗体可消除或抑制或妨碍靶标(例如肿瘤抗原)的表达、活性和/或信号传导功能。施用的抗体可消除或抑制或妨碍靶标(例如肿瘤抗原)与其所天然结合的内源性的配体结合。例如,抗体与靶标结合并调节、阻断、抑制、减少、拮抗、中和/或以其它方式妨碍肿瘤抗原表达、活性和/或信号传导。在一些实施方案中,为治疗与异常肿瘤抗原表达相关的疾病或障碍,可将具有重链和轻链CDR的抗体施用给受试者。
在另一个实施方案中,针对肿瘤抗原的抗体可用于本领域中已知的与肿瘤抗原定位和/或定量相关的方法(例如,用于测定适当生理样品中的肿瘤抗原和/或肿瘤抗原的水平,用于诊断方法,用于蛋白成像等等)。在一个给定实施方案中,对肿瘤抗原或其衍生物、片段、类似物或同系物具有特异性的、包含源于抗体的抗原结合结构域的抗体,被用作药物学活性化合物(下文称为“治疗剂”)。
在另一个实施方案中,可通过标准技术例如免疫亲和、色谱或免疫沉淀,使用对肿瘤抗原具有特异性的抗体来分离肿瘤抗原多肽。针对肿瘤抗原蛋白质的抗体(或其片段)可用于检测生物样品中的蛋白质。在一些实施方案中,在生物样品中可检测肿瘤抗原作为临床测试过程的一部分,例如,用于确定给定治疗方案的功效。将抗体偶联(即物理连接)到可检测物质可有利于检测。可检测物质的示例包括各种酶、辅基、荧光材料、发光材料、生物发光材料和放射性材料。合适的酶的示例包括辣根过氧化物酶、碱性磷酸酶、β-半乳糖苷酶或乙酰胆碱酯酶;合适的辅基复合物的示例包括链霉亲和素/生物素和亲和素/生物素;合适的荧光材料的示例包括伞形酮、荧光素、异硫氰酸荧光素、罗丹明、二氯三嗪氨荧光素、丹磺酰氯或藻红蛋白;发光材料的一个示例包括鲁米诺;生物发光材料的示例包括荧光素酶、荧光素和水母蛋白,并且合适放射性材料的示例包括125I、131I、35S或3H。
在另一个实施方案中,根据本公开的抗体可用作检测样品中肿瘤抗原或其蛋白质片段存在的试剂。在一些实施方案中,抗体包含可检测标记。抗体为多克隆抗体,或更优选单克隆抗体。使用完整的抗体或其片段(例如Fab、scFv或F(ab')2)。关于抗体的术语“标记”旨在包括通过将可检测物质偶联(即物理连接)到该抗体来直接标记该抗体,以及通过与直接标记的另一种试剂反应来间接标记该抗体。间接标记的示例包括使用荧光标记的第二抗体检测第一抗体,以及用生物素进行末端标记抗体,以便能够用荧光标记的链霉亲和素进行检测。术语“生物样品”旨在包括从受试者分离的组织、细胞和生物学流体,以及受试者体内存在的组织、细胞和流体。因此,使用的术语“生物样品”包括血液和血液中的级分或组分,包括血清、血浆、或淋巴液。换言之,所述实施方案的检测方法可用于在体外及体内检测生物样品中的分析物mRNA、蛋白质或基因组DNA。例如,分析物mRNA体外检测技术包括Norhtern杂交和原位杂交。分析物蛋白质体外检测技术包括酶联免疫吸附测定(ELISA)、Western印迹、免疫沉淀、以及免疫荧光。分析物基因组DNA体外检测技术包括Southern杂交。用于进行免疫测定的过程描述于例如“ELISA:Theory and Practice:Methods inMolecular Biology”,第42卷,J.R.Crowther(编辑)Human Press,Totowa,N.J.,1995;“Immunoassay”,E.Diamandis和T.Christopoulus,Academic Press,Inc.,San Diego,Calif.,1996;以及“Practice and Theory of Enzyme Immunoassays”,P.Tijssen,Elsevier Science Publishers,Amsterdam,1985。此外,分析物蛋白质的体内检测技术包括向受试者体内导入标记的抗分析物蛋白抗体。例如,可以用放射性标记标记抗体,然后可以通过标准成像技术检测受试者体内该放射性标记物的存在和位置。
可将本文所述抗体和其衍生物、片段、类似物和同系物掺入适于施用的药物组合物中。制备此类组合物所涉及的原理和考虑事项以及选择组分的指南在本领域中是熟知的,例如参见Remington's Pharmaceutical Sciences:The Science And Practice OfPharmacy第19版(Alfonso R.Gennaro等人编辑)Mack Pub.Co.,Easton,Pa.:1995;DrugAbsorption Enhancement:Concepts,Possibilities,Limitations,And Trends,HarwoodAcademic Publishers,Langhorne,Pa.,1994;以及Peptide And Protein Drug Delivery(Advances In Parenteral Sciences,第4卷),1991,M.Dekker,New York。
此类组合物通常包含抗体和药学上可接受的载体。当使用抗体片段时,与靶蛋白结合结构域特异性结合的最小抑制片段可为优选的。例如,基于抗体的可变区序列,可以设计保留结合靶蛋白质序列能力的肽分子。此类肽可化学合成和/或通过重组DNA技术产生(参见例如Marasco等人,Proc.Natl.Acad.Sci.USA,90:7889-7893(1993))。
如本文所用,术语“药学上可接受的载体”旨在包括与药物给药相容的任何和所有溶剂、分散介质、包衣、抗细菌剂和抗真菌剂、等渗剂和吸收延缓剂等。合适的药学上可接受的载体描述于最新版的Remington's Pharmaceutical Sciences中,这是本领域的标准参考书目,其以引用方式并入本文。此类载体或稀释剂的优选示例包括但不限于水、盐水、林格氏溶液、葡萄糖溶液和5%的人血清白蛋白。也可以使用脂质体和非水性载体,例如固定化油。将此类介质和试剂用于药物活性物质是本领域熟知的。除去任何常规的介质或试剂与抗体不相容之外,设想其在组合物中的用途。
将所述实施方案的药物组合物配制成与其预期施用途径相容。给药途径的示例包括肠胃外,例如静脉内、皮内、皮下、经口(例如吸入)、经皮(即局部的)、经粘膜和直肠给药。用于肠胃外、皮内或皮下施用的溶液或悬浮液可包括以下组分:注射用无菌稀释剂例如水、盐溶液、固定油、聚乙二醇类、甘油、丙二醇或其它合成溶剂;抗细菌剂,例如苄醇或对羟基苯甲酸甲酯;抗氧化剂,例如抗坏血酸或亚硫酸氢钠;螯合剂,例如乙二胺四乙酸(EDTA);缓冲剂,例如乙酸盐、柠檬酸盐或磷酸盐、以及调节渗透压的试剂,例如氯化钠或右旋糖。pH可用酸或碱进行调节,例如盐酸或氢氧化钠。可将肠胃外制剂包装在安瓿、一次性注射器或玻璃或塑料制多剂量小瓶内。
适于注射用途的药物组合物包括无菌水性溶液(在此是水溶性的)或分散体以及用于即时制备无菌注射液或分散体的无菌粉末。对于静脉内施用,合适的药学上可接受的载体包括生理盐水、抑菌水、Cremophor ELTM(BASF,Parsippany,N.J.)或磷酸盐缓冲盐水(PBS)。在所有情况下,组合物必须是无菌的并且应当为流动性达到易于注射的程度。其在制造和储存条件下必须是稳定的并且必须能防止微生物例如细菌和真菌的污染作用。载体可以是含有例如水、乙醇、多元醇(例如,甘油、丙二醇和液体聚乙二醇等)的溶剂或分散介质,及其适宜的混合物。例如通过利用涂层例如卵磷脂,在分散体情况下维持所需颗粒尺寸,以及利用表面活性剂,可以保持适宜的流动性。对微生物作用的防止可以通过各种抗细菌剂和抗真菌剂例如对羟基苯甲酸酯、氯代丁醇、苯酚、抗坏血酸、硫柳汞等来实现。在许多情况下,将优选在组合物中包含等渗剂,例如糖、多元醇(诸如甘露糖醇、山梨醇)、氯化钠。注射用组合物的延长吸收可通过在所述组合物中包含延缓吸收的试剂例如单硬脂酸铝和明胶来达到。
根据需要,可以通过将抗体以所需量掺入具有上文所列成分中的一种或组合(按需要)的合适溶剂中来制备无菌注射溶液,然后过滤消毒。一般来讲,通过将抗体掺入含有碱性分散介质和上文所列那些中的所需其它成分的无菌载体中来制备分散体。就用于制备无菌注射溶液的无菌粉末而言,制备方法是获得粉末的真空干燥和冷冻干燥,该粉末包含活性成分和任何另外的期望成分,它们来自前述的这些成分的无菌过滤溶液。
对于吸入给药,从包含合适推进剂如二氧化碳等气体的加压容器或分配器或者喷雾器以气溶胶喷雾形式递送化合物。
还可以通过经粘膜或透皮方式全身给药。对于经粘膜或透皮给药,在制剂中使用适于渗透屏障的渗透剂。此类渗透剂通常在本领域是通常所知的,并且包括如用于经粘膜给药的去污剂、胆盐和夫西地酸衍生物。经粘膜给药可以通过使用喷鼻剂或栓剂来实现。对于透皮给药,可将一种或多种所述抗体配制成如本领域通常所知的膏剂、软膏、凝胶、或霜膏。
还可将化合物以栓剂(例如,具有常规栓剂基质,如可可脂或其它甘油酯)或滞留性灌肠剂形式进行制备以用于经直肠递送。
在一个实施方案中,所述抗体可用防止其不被身体迅速消除的载体制备,例如缓释/控释制剂,包括植入体和微胶囊化递送体系。可使用可生物降解、可生物相容的聚合物,例如乙烯-乙酸乙烯酯、聚酐、聚乙醇酸、胶原、聚原酸酯和聚乳酸。用于制备此类制剂的方法对于本领域技术人员而言是显而易见的。
尤其有利的是以剂量单位形式配制肠胃外组合物以易于施用和剂量的一致性。如本文所用,剂量单位形式是指用于待治疗的受试者,适合作为单位剂量的物理上可分离的单位;每个单位含有经计算与所需药物载体结合产生期望治疗效果的预定量的一种或多种所述抗体。所述实施方案的剂量单位形式的规格由以下指示并直接取决于:抗体的独特特征和待实现的具体治疗效果,和用于治疗个体的此类抗体的调配领域中固有的局限性。
所述药物组合物可与给药说明书一起放于容器、包装、或分配器中。
本文所述制剂还可根据要治疗的具体情况而包含多于一种所述抗体,优选具有互补活性但对彼此无负面影响的那些。另选地或除此之外,组合物可例如包含增强其功能的试剂,诸如细胞毒素试剂、细胞因子、化学治疗剂、或生长抑制剂。此类分子以对预期目的有效的量适当地联合存在。例如,可以在试剂盒中联合存在,也可以在使用中联合存在。
在一个实施方案中,一种或多种所述抗体可在联合治疗中施用,即与其它试剂例如治疗剂(其可用于治疗病理学病症或障碍,例如各种形式的癌症、自身免疫性障碍和炎性疾病)联合。术语“联合”在本文中是指将试剂基本上同步地,同时地或顺次地给予。如果顺次给予,则在开始施用第二种化合物时,两种化合物中的第一种仍优选在治疗位点处以有效浓度被检测到。在一种情况下,“联合”也可以是在试剂盒中同时包含本公开的抗体和其他治疗剂。
例如,联合治疗可包含本文所述一种或多种抗体与一种或多种附加治疗剂(例如一种或多种细胞因子和生长因子抑制剂、免疫抑制剂、抗炎剂、代谢抑制剂、酶抑制剂、和/或细胞毒素或细胞生长抑制剂,如下更详述的)共同配制和/或共同施用。此类联合治疗可有利地利用较低剂量的施用的治疗剂,因而避免了与各种单一疗法相关的可能毒性或并发症。
在一个实施方案中,与相应的不施用抗肿瘤抗原抗体的治疗方案相比该治疗方案有效降低该受试者中与该T细胞活化性治疗剂的施用相关的细胞因子释放。
为了达到清楚和简洁描述的目的,本文中作为相同的或分开的一些实施方案的一部分来描述特征,然而,将要理解的是,本公开的范围可包括具有所描述的所有或一些特征的组合的一些实施方案。
图1示出了新型第一抗原×CD3κλ双特异抗体的结构。
本公开实验证明,在自由组合情况下,人源化CD3臂的λ轻链倾向于与同源的重链进行配对,与异源重链的配对比率较低;同样,人源化抗原臂的κ轻链也倾向于与同源的重链进行配对,与人源化CD3重链的配对比率极低;同时,在Fv引入互补电荷变异体,进一步减少了可能产生的轻链错配。CD20×CD3κλ双特异抗体的Fc部分采用人IgG4 knob-into-hole结构,通过突变Ser228Pro、Leu235Glu和Pro329Ala,保持铰链区稳定并减弱与Fcγ受体以及C1q的相互作用。
实施例
实施例1:CD3抗体的优化和对T细胞的激活作用
1.重组蛋白的合成
合成人CD3γ(UniProt P09693,Gln23-Asn116)和CD3ε(UniProt P07766,Gln23-Asp126)胞外区核苷酸序列,C端分别与人IgG Fc hole或Fc knob融合,表达形成人CD3εγ-Fc异源二聚体(人CD3γIgG Fc(hole)的氨基酸序列如SEQ ID NO.1所示,人CD3εIgG Fc(knob)的氨基酸序列如SEQ ID NO.2所示);同样合成食蟹猴CD3γ(UniProt Q95LI7,Gln23-Asn110)和CD3ε(UniProt Q95LI5,Gln22-Asp117),C端分别与食蟹猴IgG Fc hole或Fc knob融合,表达形成食蟹猴CD3εγ-Fc异源二聚体(食蟹猴CD3γIgG Fc(hole)的氨基酸序列如SEQ ID NO.3所示,食蟹猴CD3γIgG Fc(knob)的氨基酸序列如SEQ ID NO.4)。将表达CD3γ-Fc和CD3ε-Fc的重组质粒与3mg/mL PEI(Polysciences,#24765-2)混合,共转染HEK293E细胞(培养基OPM-293CD03 DPM),37℃120rpm 5%CO2培养7天后,收集培养基上清液,经Protein A亲和层析纯化,得到人或食蟹猴CD3εγ-Fc重组蛋白。
2.CD3抗体人源化
鼠源杂交瘤CD3抗体(EMBO J.1985.4(2):337-344;J.Immunol.1986,137(4):1097-100;J.Exp.Med.1991,174:319-326;J.Immunol.1991,147(9):3047-52)识别人和食蟹猴CD3受体,其序列如下:
抗CD3鼠单抗轻链氨基酸序列:
QAVVTQESALTTSPGETVTLTCRSSTGAVTTSNYANWVQQKPDHLFTGLIGGTNKRAPGVPARFSGSLIGDKAALTITGAQTEDEAIYFCALWYSNLWVFGGGTKLTVL
抗CD3鼠单抗重链氨基酸序列:
EVQLVESGGGLVQPKGSLKLSCAASGFTFNTYAMNWVRQAPGKGLEWVARIRSKYNNYATYYADSVKDRFTISRDDSQSILYLQMNNLKTEDTAMYYCVRHGNFGNSYVSWFAYWGQGTLVTVSS
将抗CD3鼠单抗人源化,选择同源性最高的人胚系基因IMGT_hVL7-43进行轻链CDR移植,FM4选用人IGLJ3*02;选择人IMGT_hVH3-73进行重链CDR移植,FM4选用人IGHJ4*01。设计共得到不同的重链变体和轻链变体(表1)。
表1、CD3人源化抗体的可变区序列
hVL1的氨基酸序列如SEQ ID NO.5所示,其编码核酸如SEQ ID NO.6所示,其LCDR1、LCDR2和LCDR3分别如SEQ ID NO.7、8、9所示。
QAVVTQEPSLTVSPGGTVTLTCRSSTGAVTTSNYANWVQQKPGQAPRGLIGGTNKRAPWTPARFSGSLLGGKAALTLSGAQPEDEAEYYCALWYSNLWVFGGGTKLTVL
核酸序列
CAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTAGATCTTCTACAGGCGCCGTGACCACCAGCAACTACGCTAATTGGGTGCAGCAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCGGCGGAACAAACAAGAGAGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACACTTTCTGGTGCTCAGCCTGAGGACGAGGCCGAGTACTATTGTGCCCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTG
hVL2的氨基酸序列如SEQ ID NO.10所示,其编码核酸如SEQ ID NO.11所示,其LCDR1、LCDR2和LCDR3分别如SEQ ID NO.7、8、9所示。
QAVVTQEPSLTVSPGGTVTLTCRSSTGAVTTSNYANWVQEKPGQAPRGLIGGTNKRAPWTPARFSGSLLGGKAALTLSGAQPEDEAEYYCALWYSNLWVFGGGTKLTVL
核酸序列
CAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTAGATCTTCTACAGGCGCCGTGACCACCAGCAACTACGCTAATTGGGTGCAGgAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCGGCGGAACAAACAAGAGAGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACACTTTCTGGTGCTCAGCCTGAGGACGAGGCCGAGTACTATTGTGCCCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTG
hVL3的氨基酸序列如SEQ ID NO.12所示,其编码核酸如SEQ ID NO.13所示,其LCDR1、LCDR2和LCDR3分别如SEQ ID NO.14、15、9所示。
EAVVTQEPSLTVSPGGTVTLTCESSDGAVTTSNYANWVQEKPGQAPRGLIGGTNKEAPWTPARFSGSLLGGKAALTLSGAQPEDEAEYYCALWYSNLWVFGGGTKLTVL
核酸序列
GAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTGAGTCTTCTGACGGCGCCGTGACCACCAGCAACTACGCTAATTGGGTGCAGGAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCGGCGGAACAAACAAGGAGGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACACTTTCTGGTGCTCAGCCTGAGGACGAGGCCGAGTACTATTGTGCCCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTG
hVL4的氨基酸序列如SEQ ID NO.16所示,其编码核酸如SEQ ID NO.17所示,其LCDR1、LCDR2和LCDR3分别如SEQ ID NO.14、15、9所示。
QAVVTQEPSLTVSPGGTVTLTCESSDGAVTTSNYANWVQEKPGQAPRGLIGGTNKEAPWTPARFSGSLLGGKAALTLSGAQPEDEAEYYCALWYSNLWVFGGGTKLTVL
核酸序列
CAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTGAGTCTTCTGACGGCGCCGTGACCACCAGCAACTACGCTAATTGGGTGCAGGAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCGGCGGAACAAACAAGGAGGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACACTTTCTGGTGCTCAGCCTGAGGACGAGGCCGAGTACTATTGTGCCCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTG
hVL5的氨基酸序列如SEQ ID NO.18所示,其编码核酸如SEQ ID NO.19所示,其LCDR1、LCDR2和LCDR3分别如SEQ ID NO.7、8、21所示。
QAVVTQEPSLTVSPGGTVTLTCRSSTGAVTTSNYANWVQEKPGQAPRGLIGGTNKRAPWTPARFSGSLLGGKAALTITGAQAEDEAEYYCVLWYSNLWVFGGGTKLTVL
核酸序列
CAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTAGATCTTCTACAGGCGCCGTGACCACCAGCAACTACGCTAATTGGGTGCAGgAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCGGCGGAACAAACAAGAGAGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACAATCACTGGTGCTCAGGCTGAGGACGAGGCCGAGTACTATTGTGTGCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTG
hVL6的氨基酸序列如SEQ ID NO.22所示,其编码核酸如SEQ ID NO.23所示,其LCDR1、LCDR2和LCDR3分别如SEQ ID NO.7、20、21所示。
QAVVTQEPSLTVSPGGTVTLTCRSSTGAVTTSNYANWFQEKPGQAPRGLIYGTNKRAPWTPARFSGSLLGGKAALTLSGAQAEDEAEYYCVLWYSNLWVFGGGTKLTVL
核酸序列
CAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTAGATCTTCTACAGGCGCCGTGACCACCAGCAACTACGCTAATTGGTTCCAGGAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCTACGGAACAAACAAGAGAGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACACTTTCTGGTGCTCAGGCTGAGGACGAGGCCGAGTACTATTGTGTCCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTG
hVH1的氨基酸序列如SEQ ID NO.24所示,其编码核酸如SEQ ID NO.25所示,其HCDR1、HCDR2和HCDR3分别如SEQ ID NO.26、27、28所示。
EVQLVESGGGLVQPGGSLRLSCAASGFTFNTYAMNWVRQAPGKGLEWVSRIRSKYNNYATYYADSVKDRFTISRDDSKNTLYLQMNSLRAEDTAVYYCVRHGNFGNSYVSWFAYWGQGTLVTVSS
核酸序列
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAACACCTACGCTATGAACTGGGTCCGACAGGCCCCTGGCAAAGGACTGGAATGGGTGTCCAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACACCCTGTACCTGCAGATGAACAGCCTGAGAGCCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCT
hVH2的氨基酸序列如SEQ ID NO.29所示,其编码核酸如SEQ ID NO.30所示,其HCDR1、HCDR2和HCDR3分别如SEQ ID NO.31、27、28所示。
EVQLVESGGGLVQPGGSLRLSCAASGFTFSTYAMNWVRKAPGKGLEWVSRIRSKYNNYATYYADSVKDRFTISRDDSKNTLYLQMNSLRAEDTAVYYCVRHGNFGNSYVSWFAYWGQGTLVTVSS
核酸序列
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCtcCACCTACGCTATGAACTGGGTCCGAaagGCCCCTGGCAAAGGACTGGAATGGGTGTCCAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACACCCTGTACCTGCAGATGAACAGCCTGAGAGCCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCT
hVH3的氨基酸序列如SEQ ID NO.32所示,其编码核酸如SEQ ID NO.33所示,其HCDR1、HCDR2和HCDR3分别如SEQ ID NO.31、27、34所示。
EVQLVESGGGLVQPGGSLRLSCAASGFTFSTYAMNWVRKAPGKGLEWVSRIRSKYNNYATYYADSVKDRFTISRDDSKNTLYLQMNSLRAEDTAVYYCVRHGNFGESYVSWFAYWGQGTLVTVSS
核酸序列
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCTCCACCTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGTCCAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACACCCTGTACCTGCAGATGAACAGCCTGAGAGCCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCGAGAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCT
hVH4的氨基酸序列如SEQ ID NO.35所示,其编码核酸如SEQ ID NO.36所示,其HCDR1、HCDR2和HCDR3分别如SEQ ID NO.31、27、37所示。
EVQLVESGGGLVQPGGSLRLSCAASGFTFSTYAMNWVRKAPGKGLEWVSRIRSKYNNYATYYADSVKDRFTISRDDSKNTLYLQMNSLRAEDTAVYYCVRHGNFGQSYVSWFAYWGQGTLVTVSS
核酸序列
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCTCCACCTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGTCCAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACACCCTGTACCTGCAGATGAACAGCCTGAGAGCCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCCAGAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCT
hVH5的氨基酸序列如SEQ ID NO.38所示,其编码核酸如SEQ ID NO.39所示,其HCDR1、HCDR2和HCDR3分别如SEQ ID NO.31、27、40所示。
EVQLVESGGGLVQPGGSLRLSCAASGFTFSTYAMNWVRKAPGKGLEWVSRIRSKYNNYATYYADSVKDRFTISRDDSKNTLYLQMNSLRAEDTAVYYCVRHGNFGDSYVSWFAYWGQGTLVTVSS
核酸序列
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCTCCACCTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGTCCAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACACCCTGTACCTGCAGATGAACAGCCTGAGAGCCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCGACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCT
hVH6的氨基酸序列如SEQ ID NO.41所示,其编码核酸如SEQ ID NO.42所示,其HCDR1、HCDR2和HCDR3分别如SEQ ID NO.31、27、43所示。
EVQLVESGGGLVQPGGSLRLSCAASGFTFSTYAMNWVRKAPGKGLEWVSRIRSKYNNYATYYADSVKDRFTISRDDSKNTLYLQMNSLRAEDTAVYYCVRHGNFGTSYVSWFAYWGQGTLVTVSS
核酸序列
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCTCCACCTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGTCCAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACACCCTGTACCTGCAGATGAACAGCCTGAGAGCCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCACCAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCT
hVH7的氨基酸序列如SEQ ID NO.44所示,其编码核酸如SEQ ID NO.45所示,其HCDR1、HCDR2和HCDR3分别如SEQ ID NO.46、47、28所示。
EVQLVESGGGLVQPGGSLRLSCAASGFTFSDYAMNWVRKAPGKGLEWVSRIRSKYNNYATYYADSVEDRFTISRDDSKNTLYLQMNSLRAEDTAVYYCVRHGNFGNSYVSWFAYWGQGTLVTVSS
核酸序列
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCTCCGACTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGTCCAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGGAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACACCCTGTACCTGCAGATGAACAGCCTGAGAGCCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCT
hVH8的氨基酸序列如SEQ ID NO.48所示,其编码核酸如SEQ ID NO.49所示,其HCDR1、HCDR2和HCDR3分别如SEQ ID NO.26、27、28所示。
EVQLVESGGGLVQPGGSLRLSCAASGFTFNTYAMNWVRKAPGKGLEWVGRIRSKYNNYATYYADSVKDRFTISRDDSKNSLYLQMNSLKTEDTAVYYCARHGNFGNSYVSWFAYWGQGTLVTVSS
核酸序列
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAACACCTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGGGAAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACAGCCTGTACCTGCAGATGAACAGCCTGAAAACCGAGGACACCGCCGTGTACTACTGTGCCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCT
hVH9的氨基酸序列如SEQ ID NO.50所示,其编码核酸如SEQ ID NO.51所示,其HCDR1、HCDR2和HCDR3分别如SEQ ID NO.26、27、28所示。
EVQLVESGGGLVQPGGSLRLSCAASGFTFNTYAMNWVRKAPGKGLEWVGRIRSKYNNYATYYADSVKDRFTISRDDSKNSLYLQMNSLKTEDTAVYYCVRHGNFGNSYVSWFAYWGQGTLVTVSS
核酸序列
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAACACCTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGGGAAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACAGCCTGTACCTGCAGATGAACAGCCTGAAAACCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCT
hVH10的氨基酸序列如SEQ ID NO.52所示,其编码核酸如SEQ ID NO.53所示,其HCDR1、HCDR2和HCDR3分别如SEQ ID NO.26、27、28所示。
EVQLVESGGGLVQPGGSLRLSCAASGFTFNTYAMNWVRKAPGKGLEWVARIRSKYNNYATYYADSVKDRFTISRDDSKNSLYLQMNSLKTEDTAVYYCVRHGNFGNSYVSWFAYWGQGTLVTVSS
核酸序列
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAACACCTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGGCCAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACAGCCTGTACCTGCAGATGAACAGCCTGAAAACCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCT
将轻、重链人源化变体分别进行全序列合成后,克隆到含有抗体lambda轻链恒定区或人IgG4重链恒定区CH1-CH3的真核表达载体,共转染HEK293E细胞,37℃120rpm 5%CO2培养5-6天后,收集培养基上清液,通过Protein A层析柱进行纯化。
3.CD3人源化抗体的亲和力
包被人CD3εγ重组蛋白,4℃过夜。2%脱脂牛奶封闭后,每孔加入不同稀释倍数的CD3抗体,孵育1小时;二抗加入HPR标记的山羊抗人IgG Fc,TMB溶液显色后,以浓硫酸终止反应并在450nm处读出吸光度。图2显示CD3人源化抗体(包括aCD3-hVH1/VL5、aCD3-hVH8/VL1、aCD3-hVH8/VL5、aCD3-hVH9/VL1、aCD3-hVH9/VL2、aCD3-hVH9/VL3、aCD3-hVH9/VL5)与人CD3εγ蛋白的结合,CD3人源化抗体高亲和力结合CD3εγ重组蛋白。
取对数生长期的Jurkat细胞,3%BSA封闭30分钟,以每孔5×104细胞加入96孔U型板,离心弃上清,每孔加入50μL梯度稀释的抗体(抗体浓度从30μg/mL起,3倍稀释5个梯度),4℃孵育1小时。洗去一抗后,二抗加入1:300稀释的Alexa Fluro647标记的山羊抗人IgG Fc(Jackson ImmunoResearch,109-606-170),4℃孵育45分钟,洗涤后每孔重悬于50μL PBS进行FACS(iQue,Intellicyt)检测。结果如图3所示,CD3人源化抗体与Jurkat细胞结合,其中CD3人源化抗体hVH9/VL5(aCD3-hVH9/VL5)和hVH9/VL2(aCD3-hVH9/VL2)均显著弱于对照抗体OKT3,以中度亲和力结合Jurkat细胞。
表2显示CD3人源化抗体与CD3重组蛋白和Jurkat细胞的亲和力。
表2、CD3人源化抗体的亲和力
ELISA(CD3εγ) | FACS(Jurkat) | |
aCD3-hVH1/VL5 | 0.60 nM | 10nM |
aCD3-hVH8/VL1 | 0.65nM | 15nM |
aCD3-hVH8/VL5 | 0.74nM | 较弱 |
aCD3-hVH9/VL1 | 0.49 nM | 7nM |
aCD3-hVH9/VL2 | 0.44nM | 25nM |
aCD3-hVH9/VL3 | 0.70nM | 弱 |
aCD3-hVH9/VL5 | 0.42nM | 20nM |
OKT3-hIgG1 | ND | 0.27nM |
KLH-hIgG4 | - | - |
ND:未检测。
-:不结合
4.CD3人源化抗体与人、食蟹猴CD3εγ抗原的交叉识别
分别包被人CD3εγ蛋白和食蟹猴CD3εγ蛋白,4℃过夜。2%脱脂牛奶封闭后,每孔加入不同稀释倍数的CD3抗体,孵育1小时;二抗加入HPR标记的山羊抗人IgG Fc,TMB溶液显色后,以浓硫酸终止反应并在450nm处读出吸光度。图4显示CD3人源化抗体hVH9/VL5(aCD3-hVH9/VL5)和hVH9/VL2(aCD3-hVH9/VL2)均可同时结合人和食蟹猴蛋白。
实施例2构建不同类型轻链形成的CD20×CD3κλ双特异抗体
1.CD20×CD3κλ双特异抗体的构建
以CD3人源化抗体hVH9/VL5(λ轻链和配对重链)和人源化CD20抗体(κ轻链和配对重链),构建具有天然IgG构型的新型T细胞κλ双特异抗体。
如图5所示,设计并构建了下述5种CD20×CD3κλ双特异抗体:
1)CD20×CD3κλ001:保留CD3臂和CD20抗原臂的天然序列;
2)CD20×CD3κλ002:同时在CD20抗原臂和CD3臂引入电荷变异体(VκCD20:Gln38Lys;VHCD20:Gln39Glu;VλCD3:Gln40Glu;VHCD3:Gln39Lys);
3)CD20×CD3κλ003:基于CD20×CD3κλ002,在CH1/Cκ之间增加互补电荷对(Vκ-CkCD20:Gln38Lys\Glu123Lys\Gln124Lys;VH-CH1CD20:Gln39Glu\Lys152Glu\Lys218Glu;VλCD3:Gln40Glu;VHCD3:Gln39Lys);
4)CD20×CD3κλ004:仅在CD20抗原臂引入电荷变异体(VκCD20:Gln38Lys;VHCD20:Gln39Glu);
5)CD20×CD3κλ005:仅在CD3臂引入电荷变异体(VλCD3:Gln40Glu;VHCD3:Gln39Lys)。
相应序列见表3,对照抗体CD20×CD3-crossFab参考CrossFab方法构建(SchaeferW等,PNAS 2011)。
表3、CD20×CD3κλ双特异抗体的序列
CD20臂轻链 | CD20臂重链 | CD3臂轻链 | CD3臂重链 | |
CD20×CD3κλ001 | SEQ ID NO.54 | SEQ ID NO.56 | SEQ ID NO.58 | SEQ ID NO.60 |
CD20×CD3κλ002 | SEQ ID NO.62 | SEQ ID NO.64 | SEQ ID NO.66 | SEQ ID NO.68 |
CD20×CD3κλ003 | SEQ ID NO.70 | SEQ ID NO.72 | SEQ ID NO.66 | SEQ ID NO.68 |
CD20×CD3κλ004 | SEQ ID NO.62 | SEQ ID NO.64 | SEQ ID NO.58 | SEQ ID NO.60 |
CD20×CD3κλ005 | SEQ ID NO.54 | SEQ ID NO.56 | SEQ ID NO.66 | SEQ ID NO.68 |
CD20×CD3-crossFab | SEQ ID NO.70 | SEQ ID NO.74 | SEQ ID NO.76 | SEQ ID NO.78 |
CD20×CD3κλ001:
CD20臂κ轻链SEQ ID NO.54
EIVLTQSPGTLSLSPGERATLSCRASQSVSSYLAWYQQKPGQAPRLLIYDASNRATGIPDRFSGSGSGTDFTLTISRLEPEDFAVYYCQQRSNWPITFGQGTKLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
核苷酸序列SEQ ID NO.55
GAGATCGTGCTGACACAGAGCCCTGGCACACTGTCACTGTCTCCAGGCGAGAGAGCCACACTGAGCTGTAGAGCCAGCCAGAGCGTGTCCTCTTACCTGGCCTGGTATCAGCAGAAGCCTGGACAGGCTCCCAGACTGCTGATCTACGACGCCAGCAACAGAGCCACAGGCATCCCCGATAGATTCAGCGGCTCTGGCTCTGGCACCGACTTCACCCTGACAATCAGCAGACTGGAACCCGAGGACTTCGCCGTGTACTACTGCCAGCAGAGAAGCAACTGGCCCATCACATTCGGCCAGGGCACCAAGCTGGAAATCAAGCGAACTGTGGCTGCACCATCTGTCTTCATCTTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTGCCTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGT
CD20臂重链(重链1)SEQ ID NO.56
EVQLLESGGGVVQPGGSLRLSCAASGFTFNDYAMHWVRQAPGKGLEWVSTISWNSGSIGYADSVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCAKDIQYGNYYYGMDYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVCTLPPSQEEMTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLVSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列SEQ ID NO.57
GAAGTGCAGCTGCTGGAATCTGGTGGCGGAGTTGTTCAGCCTGGCGGCTCTCTGAGACTGTCTTGTGCTGCCAGCGGCTTCACCTTCAACGACTACGCTATGCACTGGGTCCGACAGGCCCCTGGCAAAGGACTTGAATGGGTGTCCACCATCAGCTGGAACAGCGGCTCTATCGGCTACGCCGATTCCGTGAAGGGCAGATTCACCATCTCCAGAGACAACAGCAAGAACACCCTGTACCTGCAGATGAACAGCCTGAGAGCCGAGGACACCGCCGTGTACTACTGTGCCAAGGACATCCAGTACGGCAACTACTACTACGGCATGGACTACTGGGGCCAGGGAACACTGGTTACCGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTGCACCCTGCCACCTAGCCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGAGCTGTGCCGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGGTTTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
CD3臂λ轻链SEQ ID NO.58
QAVVTQEPSLTVSPGGTVTLTCRSSTGAVTTSNYANWVQQKPGQAPRGLIGGTNKRAPWTPARFSGSLLGGKAALTITGAQAEDEAEYYCVLWYSNLWVFGGGTKLTVLGQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSPVKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTECS
核苷酸序列SEQ ID NO.59
CAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTAGATCTTCTACAGGCGCCGTGACCACCAGCAACTACGCTAATTGGGTGCAGCAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCGGCGGAACAAACAAGAGAGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACAATCACTGGTGCTCAGGCTGAGGACGAGGCCGAGTACTATTGTGTGCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTGGGTCAGCCCAAGGCGGCGCCCTCGGTCACTCTGTTCCCGCCCTCCTCTGAGGAGCTTCAAGCCAACAAGGCCACACTGGTGTGTCTCATAAGTGACTTCTATCCGGGAGCCGTGACAGTGGCCTGGAAGGCAGATAGCAGCCCCGTCAAGGCGGGAGTGGAGACCACCACACCCTCCAAACAAAGCAACAACAAGTACGCGGCCAGCAGCTACCTGAGCCTGACGCCTGAGCAGTGGAAGTCCCACAGAAGCTACAGCTGCCAGGTCACGCATGAAGGGAGCACCGTGGAGAAGACAGTGGCCCCTACAGAATGTTCA
CD3臂重链(重链2)SEQ ID NO.60
EVQLVESGGGLVQPGGSLRLSCAASGFTFNTYAMNWVRQAPGKGLEWVGRIRSKYNNYATYYADSVKDRFTISRDDSKNSLYLQMNSLKTEDTAVYYCVRHGNFGNSYVSWFAYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVYTLPPCQEEMTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列SEQ ID NO.61
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAACACCTACGCTATGAACTGGGTCCGACAGGCCCCTGGCAAAGGACTGGAATGGGTGGGAAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACAGCCTGTACCTGCAGATGAACAGCCTGAAAACCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTACACCCTGCCACCTTGTCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGTGGTGTCTGGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGTACTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
CD20×CD3κλ002:
CD20臂κ轻链SEQ ID NO.62
EIVLTQSPGTLSLSPGERATLSCRASQSVSSYLAWYQKKPGQAPRLLIYDASNRATGIPDRFSGSGSGTDFTLTISRLEPEDFAVYYCQQRSNWPITFGQGTKLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
核苷酸序列SEQ ID NO.63
GAGATCGTGCTGACACAGAGCCCTGGCACACTGTCACTGTCTCCAGGCGAGAGAGCCACACTGAGCTGTAGAGCCAGCCAGAGCGTGTCCTCTTACCTGGCCTGGTATCAGAAGAAGCCTGGACAGGCTCCCAGACTGCTGATCTACGACGCCAGCAACAGAGCCACAGGCATCCCCGATAGATTCAGCGGCTCTGGCTCTGGCACCGACTTCACCCTGACAATCAGCAGACTGGAACCCGAGGACTTCGCCGTGTACTACTGCCAGCAGAGAAGCAACTGGCCCATCACATTCGGCCAGGGCACCAAGCTGGAAATCAAGCGAACTGTGGCTGCACCATCTGTCTTCATCTTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTGCCTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGT
CD20臂重链(重链1)SEQ ID NO.64
EVQLLESGGGVVQPGGSLRLSCAASGFTFNDYAMHWVREAPGKGLEWVSTISWNSGSIGYADSVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCAKDIQYGNYYYGMDYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVCTLPPSQEEMTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLVSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列SEQ ID NO.65
GAAGTGCAGCTGCTGGAATCTGGTGGCGGAGTTGTTCAGCCTGGCGGCTCTCTGAGACTGTCTTGTGCTGCCAGCGGCTTCACCTTCAACGACTACGCTATGCACTGGGTCCGAGAGGCCCCTGGCAAAGGACTTGAATGGGTGTCCACCATCAGCTGGAACAGCGGCTCTATCGGCTACGCCGATTCCGTGAAGGGCAGATTCACCATCTCCAGAGACAACAGCAAGAACACCCTGTACCTGCAGATGAACAGCCTGAGAGCCGAGGACACCGCCGTGTACTACTGTGCCAAGGACATCCAGTACGGCAACTACTACTACGGCATGGACTACTGGGGCCAGGGAACACTGGTTACCGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTGCACCCTGCCACCTAGCCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGAGCTGTGCCGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGGTTTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
CD3臂λ轻链SEQ ID NO.66
QAVVTQEPSLTVSPGGTVTLTCRSSTGAVTTSNYANWVQEKPGQAPRGLIGGTNKRAPWTPARFSGSLLGGKAALTITGAQAEDEAEYYCVLWYSNLWVFGGGTKLTVLGQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSPVKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTECS
核苷酸序列SEQ ID NO.67
CAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTAGATCTTCTACAGGCGCCGTGACCACCAGCAACTACGCTAATTGGGTGCAGGAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCGGCGGAACAAACAAGAGAGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACAATCACTGGTGCTCAGGCTGAGGACGAGGCCGAGTACTATTGTGTGCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTGGGTCAGCCCAAGGCGGCGCCCTCGGTCACTCTGTTCCCGCCCTCCTCTGAGGAGCTTCAAGCCAACAAGGCCACACTGGTGTGTCTCATAAGTGACTTCTATCCGGGAGCCGTGACAGTGGCCTGGAAGGCAGATAGCAGCCCCGTCAAGGCGGGAGTGGAGACCACCACACCCTCCAAACAAAGCAACAACAAGTACGCGGCCAGCAGCTACCTGAGCCTGACGCCTGAGCAGTGGAAGTCCCACAGAAGCTACAGCTGCCAGGTCACGCATGAAGGGAGCACCGTGGAGAAGACAGTGGCCCCTACAGAATGTTCA
CD3臂重链(重链2)SEQ ID NO.68
EVQLVESGGGLVQPGGSLRLSCAASGFTFNTYAMNWVRKAPGKGLEWVGRIRSKYNNYATYYADSVKDRFTISRDDSKNSLYLQMNSLKTEDTAVYYCVRHGNFGNSYVSWFAYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVYTLPPCQEEMTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列SEQ ID NO.69
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAACACCTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGGGAAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACAGCCTGTACCTGCAGATGAACAGCCTGAAAACCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTACACCCTGCCACCTTGTCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGTGGTGTCTGGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGTACTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
CD20×CD3κλ003:
CD20臂κ轻链SEQ ID NO.70
EIVLTQSPGTLSLSPGERATLSCRASQSVSSYLAWYQKKPGQAPRLLIYDASNRATGIPDRFSGSGSGTDFTLTISRLEPEDFAVYYCQQRSNWPITFGQGTKLEIKRTVAAPSVFIFPPSDKKLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
核苷酸序列SEQ ID NO.71
GAGATCGTGCTGACACAGAGCCCTGGCACACTGTCACTGTCTCCAGGCGAGAGAGCCACACTGAGCTGTAGAGCCAGCCAGAGCGTGTCCTCTTACCTGGCCTGGTATCAGAAGAAGCCTGGACAGGCTCCCAGACTGCTGATCTACGACGCCAGCAACAGAGCCACAGGCATCCCCGATAGATTCAGCGGCTCTGGCTCTGGCACCGACTTCACCCTGACAATCAGCAGACTGGAACCCGAGGACTTCGCCGTGTACTACTGCCAGCAGAGAAGCAACTGGCCCATCACATTCGGCCAGGGCACCAAGCTGGAAATCAAGCGAACTGTGGCTGCACCATCTGTCTTCATCTTCCCGCCATCTGATAAGAAATTGAAATCTGGAACTGCCTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGT
CD20臂重链(重链1)SEQ ID NO.72
EVQLLESGGGVVQPGGSLRLSCAASGFTFNDYAMHWVREAPGKGLEWVSTISWNSGSIGYADSVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCAKDIQYGNYYYGMDYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVEDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDERVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVCTLPPSQEEMTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLVSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列SEQ ID NO.73
GAAGTGCAGCTGCTGGAATCTGGTGGCGGAGTTGTTCAGCCTGGCGGCTCTCTGAGACTGTCTTGTGCTGCCAGCGGCTTCACCTTCAACGACTACGCTATGCACTGGGTCCGAGAGGCCCCTGGCAAAGGACTTGAATGGGTGTCCACCATCAGCTGGAACAGCGGCTCTATCGGCTACGCCGATTCCGTGAAGGGCAGATTCACCATCTCCAGAGACAACAGCAAGAACACCCTGTACCTGCAGATGAACAGCCTGAGAGCCGAGGACACCGCCGTGTACTACTGTGCCAAGGACATCCAGTACGGCAACTACTACTACGGCATGGACTACTGGGGCCAGGGAACACTGGTTACCGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGGAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACGAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAAGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTGCACCCTGCCACCTAGCCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGAGCTGTGCCGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGGTTTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
CD3臂λ轻链SEQ ID NO.66
QAVVTQEPSLTVSPGGTVTLTCRSSTGAVTTSNYANWVQEKPGQAPRGLIGGTNKRAPWTPARFSGSLLGGKAALTITGAQAEDEAEYYCVLWYSNLWVFGGGTKLTVLGQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSPVKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTECS
核苷酸序列SEQ ID NO.67
CAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTAGATCTTCTACAGGCGCCGTGACCACCAGCAACTACGCTAATTGGGTGCAGGAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCGGCGGAACAAACAAGAGAGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACAATCACTGGTGCTCAGGCTGAGGACGAGGCCGAGTACTATTGTGTGCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTGGGTCAGCCCAAGGCGGCGCCCTCGGTCACTCTGTTCCCGCCCTCCTCTGAGGAGCTTCAAGCCAACAAGGCCACACTGGTGTGTCTCATAAGTGACTTCTATCCGGGAGCCGTGACAGTGGCCTGGAAGGCAGATAGCAGCCCCGTCAAGGCGGGAGTGGAGACCACCACACCCTCCAAACAAAGCAACAACAAGTACGCGGCCAGCAGCTACCTGAGCCTGACGCCTGAGCAGTGGAAGTCCCACAGAAGCTACAGCTGCCAGGTCACGCATGAAGGGAGCACCGTGGAGAAGACAGTGGCCCCTACAGAATGTTCA
CD3臂重链(重链2)SEQ ID NO.68
EVQLVESGGGLVQPGGSLRLSCAASGFTFNTYAMNWVRKAPGKGLEWVGRIRSKYNNYATYYADSVKDRFTISRDDSKNSLYLQMNSLKTEDTAVYYCVRHGNFGNSYVSWFAYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVYTLPPCQEEMTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列SEQ ID NO.69
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAACACCTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGGGAAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACAGCCTGTACCTGCAGATGAACAGCCTGAAAACCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTACACCCTGCCACCTTGTCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGTGGTGTCTGGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGTACTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
CD20×CD3κλ004:
CD20臂κ轻链SEQ ID NO.62
EIVLTQSPGTLSLSPGERATLSCRASQSVSSYLAWYQKKPGQAPRLLIYDASNRATGIPDRFSGSGSGTDFTLTISRLEPEDFAVYYCQQRSNWPITFGQGTKLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
核苷酸序列SEQ ID NO.63
GAGATCGTGCTGACACAGAGCCCTGGCACACTGTCACTGTCTCCAGGCGAGAGAGCCACACTGAGCTGTAGAGCCAGCCAGAGCGTGTCCTCTTACCTGGCCTGGTATCAGAAGAAGCCTGGACAGGCTCCCAGACTGCTGATCTACGACGCCAGCAACAGAGCCACAGGCATCCCCGATAGATTCAGCGGCTCTGGCTCTGGCACCGACTTCACCCTGACAATCAGCAGACTGGAACCCGAGGACTTCGCCGTGTACTACTGCCAGCAGAGAAGCAACTGGCCCATCACATTCGGCCAGGGCACCAAGCTGGAAATCAAGCGAACTGTGGCTGCACCATCTGTCTTCATCTTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTGCCTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGT
CD20臂重链(重链1)SEQ ID NO.64
EVQLLESGGGVVQPGGSLRLSCAASGFTFNDYAMHWVREAPGKGLEWVSTISWNSGSIGYADSVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCAKDIQYGNYYYGMDYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVCTLPPSQEEMTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLVSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列SEQ ID NO.65
GAAGTGCAGCTGCTGGAATCTGGTGGCGGAGTTGTTCAGCCTGGCGGCTCTCTGAGACTGTCTTGTGCTGCCAGCGGCTTCACCTTCAACGACTACGCTATGCACTGGGTCCGAGAGGCCCCTGGCAAAGGACTTGAATGGGTGTCCACCATCAGCTGGAACAGCGGCTCTATCGGCTACGCCGATTCCGTGAAGGGCAGATTCACCATCTCCAGAGACAACAGCAAGAACACCCTGTACCTGCAGATGAACAGCCTGAGAGCCGAGGACACCGCCGTGTACTACTGTGCCAAGGACATCCAGTACGGCAACTACTACTACGGCATGGACTACTGGGGCCAGGGAACACTGGTTACCGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTGCACCCTGCCACCTAGCCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGAGCTGTGCCGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGGTTTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
CD3臂λ轻链SEQ ID NO.58
QAVVTQEPSLTVSPGGTVTLTCRSSTGAVTTSNYANWVQQKPGQAPRGLIGGTNKRAPWTPARFSGSLLGGKAALTITGAQAEDEAEYYCVLWYSNLWVFGGGTKLTVLGQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSPVKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTECS
核苷酸序列SEQ ID NO.59
CAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTAGATCTTCTACAGGCGCCGTGACCACCAGCAACTACGCTAATTGGGTGCAGCAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCGGCGGAACAAACAAGAGAGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACAATCACTGGTGCTCAGGCTGAGGACGAGGCCGAGTACTATTGTGTGCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTGGGTCAGCCCAAGGCGGCGCCCTCGGTCACTCTGTTCCCGCCCTCCTCTGAGGAGCTTCAAGCCAACAAGGCCACACTGGTGTGTCTCATAAGTGACTTCTATCCGGGAGCCGTGACAGTGGCCTGGAAGGCAGATAGCAGCCCCGTCAAGGCGGGAGTGGAGACCACCACACCCTCCAAACAAAGCAACAACAAGTACGCGGCCAGCAGCTACCTGAGCCTGACGCCTGAGCAGTGGAAGTCCCACAGAAGCTACAGCTGCCAGGTCACGCATGAAGGGAGCACCGTGGAGAAGACAGTGGCCCCTACAGAATGTTCA
CD3臂重链(重链2)SEQ ID NO.60
EVQLVESGGGLVQPGGSLRLSCAASGFTFNTYAMNWVRQAPGKGLEWVGRIRSKYNNYATYYADSVKDRFTISRDDSKNSLYLQMNSLKTEDTAVYYCVRHGNFGNSYVSWFAYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVYTLPPCQEEMTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列SEQ ID NO.61
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAACACCTACGCTATGAACTGGGTCCGACAGGCCCCTGGCAAAGGACTGGAATGGGTGGGAAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACAGCCTGTACCTGCAGATGAACAGCCTGAAAACCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTACACCCTGCCACCTTGTCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGTGGTGTCTGGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGTACTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
CD20×CD3κλ005:
CD20臂κ轻链SEQ ID NO.54
EIVLTQSPGTLSLSPGERATLSCRASQSVSSYLAWYQQKPGQAPRLLIYDASNRATGIPDRFSGSGSGTDFTLTISRLEPEDFAVYYCQQRSNWPITFGQGTKLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
核苷酸序列SEQ ID NO.55
GAGATCGTGCTGACACAGAGCCCTGGCACACTGTCACTGTCTCCAGGCGAGAGAGCCACACTGAGCTGTAGAGCCAGCCAGAGCGTGTCCTCTTACCTGGCCTGGTATCAGCAGAAGCCTGGACAGGCTCCCAGACTGCTGATCTACGACGCCAGCAACAGAGCCACAGGCATCCCCGATAGATTCAGCGGCTCTGGCTCTGGCACCGACTTCACCCTGACAATCAGCAGACTGGAACCCGAGGACTTCGCCGTGTACTACTGCCAGCAGAGAAGCAACTGGCCCATCACATTCGGCCAGGGCACCAAGCTGGAAATCAAGCGAACTGTGGCTGCACCATCTGTCTTCATCTTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTGCCTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGT
CD20臂重链(重链1)SEQ ID NO.56
EVQLLESGGGVVQPGGSLRLSCAASGFTFNDYAMHWVRQAPGKGLEWVSTISWNSGSIGYADSVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCAKDIQYGNYYYGMDYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVCTLPPSQEEMTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLVSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列SEQ ID NO.57
GAAGTGCAGCTGCTGGAATCTGGTGGCGGAGTTGTTCAGCCTGGCGGCTCTCTGAGACTGTCTTGTGCTGCCAGCGGCTTCACCTTCAACGACTACGCTATGCACTGGGTCCGACAGGCCCCTGGCAAAGGACTTGAATGGGTGTCCACCATCAGCTGGAACAGCGGCTCTATCGGCTACGCCGATTCCGTGAAGGGCAGATTCACCATCTCCAGAGACAACAGCAAGAACACCCTGTACCTGCAGATGAACAGCCTGAGAGCCGAGGACACCGCCGTGTACTACTGTGCCAAGGACATCCAGTACGGCAACTACTACTACGGCATGGACTACTGGGGCCAGGGAACACTGGTTACCGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTGCACCCTGCCACCTAGCCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGAGCTGTGCCGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGGTTTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
CD3臂λ轻链SEQ ID NO.66
QAVVTQEPSLTVSPGGTVTLTCRSSTGAVTTSNYANWVQEKPGQAPRGLIGGTNKRAPWTPARFSGSLLGGKAALTITGAQAEDEAEYYCVLWYSNLWVFGGGTKLTVLGQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSPVKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTECS
核苷酸序列SEQ ID NO.67
CAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTAGATCTTCTACAGGCGCCGTGACCACCAGCAACTACGCTAATTGGGTGCAGGAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCGGCGGAACAAACAAGAGAGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACAATCACTGGTGCTCAGGCTGAGGACGAGGCCGAGTACTATTGTGTGCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTGGGTCAGCCCAAGGCGGCGCCCTCGGTCACTCTGTTCCCGCCCTCCTCTGAGGAGCTTCAAGCCAACAAGGCCACACTGGTGTGTCTCATAAGTGACTTCTATCCGGGAGCCGTGACAGTGGCCTGGAAGGCAGATAGCAGCCCCGTCAAGGCGGGAGTGGAGACCACCACACCCTCCAAACAAAGCAACAACAAGTACGCGGCCAGCAGCTACCTGAGCCTGACGCCTGAGCAGTGGAAGTCCCACAGAAGCTACAGCTGCCAGGTCACGCATGAAGGGAGCACCGTGGAGAAGACAGTGGCCCCTACAGAATGTTCA
CD3臂重链(重链2)SEQ ID NO.68
EVQLVESGGGLVQPGGSLRLSCAASGFTFNTYAMNWVRKAPGKGLEWVGRIRSKYNNYATYYADSVKDRFTISRDDSKNSLYLQMNSLKTEDTAVYYCVRHGNFGNSYVSWFAYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVYTLPPCQEEMTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列SEQ ID NO.69
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAACACCTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGGGAAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACAGCCTGTACCTGCAGATGAACAGCCTGAAAACCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTACACCCTGCCACCTTGTCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGTGGTGTCTGGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGTACTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
CD20×CD3-crossFab
CD20臂κ轻链SEQ ID NO.70
EIVLTQSPGTLSLSPGERATLSCRASQSVSSYLAWYQKKPGQAPRLLIYDASNRATGIPDRFSGSGSGTDFTLTISRLEPEDFAVYYCQQRSNWPITFGQGTKLEIKRTVAAPSVFIFPPSDKKLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
核苷酸序列SEQ ID NO.71
GAGATCGTGCTGACACAGAGCCCTGGCACACTGTCACTGTCTCCAGGCGAGAGAGCCACACTGAGCTGTAGAGCCAGCCAGAGCGTGTCCTCTTACCTGGCCTGGTATCAGAAGAAGCCTGGACAGGCTCCCAGACTGCTGATCTACGACGCCAGCAACAGAGCCACAGGCATCCCCGATAGATTCAGCGGCTCTGGCTCTGGCACCGACTTCACCCTGACAATCAGCAGACTGGAACCCGAGGACTTCGCCGTGTACTACTGCCAGCAGAGAAGCAACTGGCCCATCACATTCGGCCAGGGCACCAAGCTGGAAATCAAGCGAACTGTGGCTGCACCATCTGTCTTCATCTTCCCGCCATCTGATAAGAAATTGAAATCTGGAACTGCCTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGT
CD20臂重链(重链1)SEQ ID NO.74
EVQLLESGGGVVQPGGSLRLSCAASGFTFNDYAMHWVREAPGKGLEWVSTISWNSGSIGYADSVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCAKDIQYGNYYYGMDYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVEDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDERVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFASTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLPSSIEKTISKAKGQPREPQVCTLPPSQEEMTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLVSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列SEQ ID NO.75
GAAGTGCAGCTGCTGGAATCTGGTGGCGGAGTTGTTCAGCCTGGCGGCTCTCTGAGACTGTCTTGTGCTGCCAGCGGCTTCACCTTCAACGACTACGCTATGCACTGGGTCCGAGAGGCCCCTGGCAAAGGACTTGAATGGGTGTCCACCATCAGCTGGAACAGCGGCTCTATCGGCTACGCCGATTCCGTGAAGGGCAGATTCACCATCTCCAGAGACAACAGCAAGAACACCCTGTACCTGCAGATGAACAGCCTGAGAGCCGAGGACACCGCCGTGTACTACTGTGCCAAGGACATCCAGTACGGCAACTACTACTACGGCATGGACTACTGGGGCCAGGGAACACTGGTTACCGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGGAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACGAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAAGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCGCCAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGCCTAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTGCACCCTGCCACCTAGCCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGAGCTGTGCCGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGGTTTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
CD3臂λ轻链SEQ ID NO.76
EVQLVESGGGLVQPGGSLRLSCAASGFTFNTYAMNWVRKAPGKGLEWVGRIRSKYNNYATYYADSVKDRFTISRDDSKNSLYLQMNSLKTEDTAVYYCVRHGNFGNSYVSWFAYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRV
核苷酸序列SEQ ID NO.77
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAACACCTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGGGAAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACAGCCTGTACCTGCAGATGAACAGCCTGAAAACCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTG
CD3臂重链(重链2)SEQ ID NO.78
QAVVTQEPSLTVSPGGTVTLTCRSSTGAVTTSNYANWVQEKPGQAPRGLIGGTNKRAPWTPARFSGSLLGGKAALTITGAQAEDEAEYYCVLWYSNLWVFGGGTKLTVLGQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSPVKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTECSESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFASTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLPSSIEKTISKAKGQPREPQVYTLPPCQEEMTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列SEQ ID NO.79
CAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTAGATCTTCTACAGGCGCCGTGACCACCAGCAACTACGCTAATTGGGTGCAGGAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCGGCGGAACAAACAAGAGAGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACAATCACTGGTGCTCAGGCTGAGGACGAGGCCGAGTACTATTGTGTGCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTGGGTCAGCCCAAGGCGGCGCCCTCGGTCACTCTGTTCCCGCCCTCCTCTGAGGAGCTTCAAGCCAACAAGGCCACACTGGTGTGTCTCATAAGTGACTTCTATCCGGGAGCCGTGACAGTGGCCTGGAAGGCAGATAGCAGCCCCGTCAAGGCGGGAGTGGAGACCACCACACCCTCCAAACAAAGCAACAACAAGTACGCGGCCAGCAGCTACCTGAGCCTGACGCCTGAGCAGTGGAAGTCCCACAGAAGCTACAGCTGCCAGGTCACGCATGAAGGGAGCACCGTGGAGAAGACAGTGGCCCCTACAGAATGTTCAGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCGCCAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGCCTAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTACACCCTGCCACCTTGTCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGTGGTGTCTGGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGTACTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
2.CD20×CD3κλ双特异抗体的表达和纯化
将编码相应抗体片段的质粒,按CD20臂轻链:CD3臂轻链:CD20臂重链(重链1):CD3臂重链(重链2)=2:2:1:1的比率混合,与3mg/mL PEI混合后,共同转染CHO-S细胞,在500mLCD CHO AGT培养基(Gibco#12490-001)37℃5%CO2 150rpm培养,分别在瞬转第2、4和6天,加入4%CHO Feed C+补料(Gibco#A25031-05)。当细胞活率降至85%左右,收获发酵液,过滤后经Protein A亲和层析纯化。基于不同轻链类型构建的CD20×CD3κλ双特异抗体,Protein A一步纯化后单体纯度接近或高于90%,而对照抗体CD20×CD3-crossFab的单体纯度低于80%(表4),κλ轻链的比率接近1:1(图6)。
表4、CD20×CD3κλ双特异抗体的纯度(SEC-HPLC)
使用Capto S ImpAct离子交换层析,对CD20×CD3κλ双特异抗体进一步精制纯化,通过50-300mM NaCl,50mM磷酸盐,pH6.4梯度洗脱,合并洗脱峰,SEC-HPLC单体含量显示高于99%(图7)。CD20×CD3κλ002和CD20×CD3κλ003纯化样品中,轻链错配比率极低(<1%),未检测到CD3同源二聚体或CD20同源二聚体(图8)。
3.CD20×CD3κλ双特异抗体的结合活性
分别通过检测与CD20过表达稳转细胞或CD20+肿瘤细胞的结合,确定双特异抗体CD20抗原臂的亲和力,通过检测与CD3重组抗原、Jurkat细胞或新鲜分离的外周血T细胞的结合,确定双特异抗体CD3臂的亲和力。检测结果显示,新型CD20×CD3κλ双特异抗体与肿瘤细胞的亲和力高于与T细胞的亲和力约3~5倍。阳性对照抗体bsAB1按文献US20170174781合成并表达制备。
(1)CD20×CD3κλ双特异抗体与人和食蟹猴CD20稳转细胞的结合
取对数生长期的实施例1制备的CHO-人CD20和CHO-食蟹猴CD20稳转细胞,用4%小牛血清(Hyclone,SH30626.06)调整细胞至5×105个细胞/ml,加入100μl/孔细胞悬液至96孔U型板,300g离心5分钟,弃上清,每孔加入100μL梯度稀释的抗体(起始浓度1800nM,3倍稀释,10个梯度),4℃孵育60分钟。二抗加入50μL/孔Alexa Fluro647标记的山羊抗人IgG Fc(1:300稀释),冰上孵育20分钟,洗1次后加入50μL/孔碘化丙啶(PI)溶液(1:300),孵育5分钟,用流式细胞仪进行检测。图9和表5显示,CD20×CD3κλ双特异抗体高亲和力结合细胞CD20受体,在人和食蟹猴CD20稳转细胞上的亲合力相当。
表5、CD20×CD3κλ双特异抗体和CD20稳转细胞的结合
EC50 | 人CD20-CHO | 食蟹猴CD20-CHO |
CD20×CD3κλ001 | 10 nM | 12nM |
CD20×CD3κλ002 | 9 nM | 8nM |
CD20×CD3κλ003 | 7 nM | 8nM |
CD20×CD3κλ004 | 8nM | 10nM |
CD20×CD3κλ005 | 9nM | 14nM |
KLH×CD3 | - | - |
“-”:不结合
(2)CD20×CD3κλ双特异抗体与人CD20+肿瘤细胞的结合
取对数生长期的SU-DHL-4、Raji和NALM-6细胞,加入200μg/mL鼠IgG(JacksonImmunoResearch,115-005-03)冰浴封闭30分钟,用4%小牛血清调整细胞至5×105细胞/mL,每孔100μL加入96孔U型板,300g离心5分钟,弃上清,每孔加入100μL梯度稀释的抗体(起始浓度1800nM,3倍稀释,10个梯度),4℃孵育60分钟。洗去一抗,加入50μL/孔AlexaFluro647标记的山羊抗人IgG Fc(1:300稀释),冰上孵育20分钟,洗1次后加入50μL/孔PI,孵育5分钟,用流式细胞仪进行检测。检测结果见图10和表6,CD20×CD3κλ双特异抗体高亲和力结合CD20+肿瘤细胞SU-DHL-4、Raji和NALM-6。
(3)CD20×CD3κλ双特异抗体与Jurkat细胞的结合
取对数生长期的Jurkat细胞,加入200μg/mL鼠IgG(Jackson ImmunoResearch,115-005-03),冰浴30分钟。用4%小牛血清调整细胞至5×105细胞/mL,每孔100μL加入96孔U型板,300g离心去上清,每孔加入100μL梯度稀释的抗体(起始浓度1800nM,3倍稀释,10个梯度),4℃孵育60分钟。二抗加入50μL/孔Alexa Fluro647标记的山羊抗人IgG Fc(1:300稀释),冰上孵育20分钟,洗1次后加入50μL/孔PI,孵育5分钟,用流式细胞仪(BD C6)进行检测。检测结果如图11和表6,CD20×CD3κλ双特异抗体以中等亲和力结合人白血病T细胞系Jurkat细胞,EC50约71-120nM,低于CD20抗原臂与CD20受体的结合力约10倍。
(4)CD20×CD3κλ双特异抗体与人外周血T细胞的结合
取人新鲜外周血,通过Ficoll.Paque Plu(GE,17-1440-03)分离得到PBMC。将PBMC用4%小牛血清(Hyclone,SH30626.06)调整细胞至5×105个细胞/mL,100μL/孔加入96孔U型板,离心弃上清,每孔加入100μL梯度稀释的抗体(起始浓度1800nM,3倍稀释,10个梯度),4℃孵育60分钟。二抗加入50μL/孔Alexa Fluro647标记的山羊抗人IgG Fc(1:300稀释),冰浴20分钟,洗1次后加入50μL/孔PI,孵育5分钟,用流式细胞仪(BD C6)进行检测。检测结果见图12和表6,CD20×CD3κλ双特异抗体识别人外周血CD4+T和CD8+T细胞,与人T细胞亲和力约65-98nM,弱于CD20抗原臂与CD20受体的结合力约10倍,有利于双特异抗体优先富集到肿瘤细胞。
表6、CD20×CD3κλ双特异抗体与人细胞的结合力(nM)
EC50(nM) | SU-DHL-4 | Raji | NALM-6 | Jurkat | CD4T | CD8T |
CD20×CD3κλ002 | 7 | 23 | 10 | 71 | 73 | 98 |
CD20×CD3κλ003 | 6 | 25 | 8 | 120 | 69 | 65 |
bsAB1 | 19 | 115 | 48 | ND | 25 | 22 |
KLH×CD3 | - | - | - | 33 | 62 | 65 |
ND:高浓度条件下未达到饱和
4.CD20×CD3κλ双特异抗体介导的TDCC作用
取新鲜分离得到的PBMC分别与处于对数生长期的靶细胞NALM-6、TMD-8和Toledo细胞混合,效应/靶细胞=8:1,每孔加入50μL梯度稀释的抗体(抗体浓度从66.7nM起,10倍稀释,7个梯度),5%CO2 37℃培养24小时。培养结束后,将50μL上清转移至新的黑色酶标板,加入50μL/孔LDH检测底物,10分钟后终止反应并检测LDH释放;孔内剩余细胞用4%小牛血清洗2次后,加入100μg/mL人IgG孵育10分钟,再加入T细胞活化检测抗体(CD25-PE,CD4-APC,CD69-FITC和CD8-APC),冰上孵育20分钟。洗涤弃上清,加入60μL/孔PI,置于冰上孵育5分钟,用流式细胞仪进行检测。图13A、13B分别显示CD20×CD3κλ双特异抗体对人B淋巴白血病细胞Nalm-6的杀伤和对T细胞的活化。图14A、14B分别显示CD20×CD3κλ双特异抗体对TMD-8细胞的杀伤和对T细胞的活化。图15A、15B分别显示CD20×CD3κλ双特异抗体对Toledo细胞的杀伤和对T细胞的活化。对于CD20表达水平不同的肿瘤细胞Nalm-6、TMD-8和Toledo,CD20×CD3κλ002和CD20×CD3κλ003均可介导T细胞产生有效杀伤作用,杀伤活性与对照抗体bsAB1相当或略强,且对T细胞的激活较后者更为温和。
5.CD20×CD3κλ双特异抗体对T细胞活化通路的激活
取对数生长期的Jurkat-NFAT-luc报告细胞和CD20阳性靶细胞(SU-DHL-4、Raji和NALM-6细胞),离心弃上清,重悬至2×106个细胞/ml。50μl/孔接种靶细胞至96孔板,300g离心5分钟弃上清,50μl/孔接种Jurkat-NFAT-luc报告细胞至96孔板,每孔加入50μL梯度稀释的CD20×CD3κλ双特异抗体或对照抗体KLH×CD3(起始浓度20μg/ml,10倍稀释,10个梯度),5%CO2,37℃培养6小时。培养结束后,按照ONE-Glo Luciferase Assay System说明书,每孔加入100μL检测试剂,室温放置3分钟,于酶标仪(Biotek Synergy HT)检测。检测结果见图16和表7,CD20×CD3κλ双特异抗体以不同CD20表达水平的肿瘤细胞为靶细胞时,均可激活T细胞的NFAT信号通路。
表7、CD20×CD3κλ双特异抗体对T细胞NFAT通路的激活
EC50(nM) | SU-DHL-4 | Raji | NALM-6 |
CD20×CD3κλ002 | 0.10 | 0.02 | 0.14 |
CD20×CD3κλ003 | 0.11 | 0.02 | 0.14 |
KLH×CD3 | - | - | - |
6.CD20×CD3κλ双特异抗体与Fcγ受体的结合
将50μg/ml His-Tag抗体通过氨基偶联到CM5芯片,分别捕获带有His标签的FcγRI、FcγRIIAH131和FcγRIIIAV158重组蛋白(Sino Biological,#10256-H08H/10374-H08H1/10389-H08H1),捕获时间40秒,流速10μL/min,基线平稳后,将梯度稀释的抗体(起始浓度37.5μg/mL,2倍稀释)以30μL/min的流速流过芯片,结合时间120秒,解离时间200秒,用Biacore evaluation软件拟合得到亲和力常数。由表8可见,CD20×CD3κλ双特异抗体与FcγRI、FcγRIIAH131和FcγRIIIAV158均无结合;野生型IgG4对照抗体以较强亲和力结合FcγRI,与FcγRIIAH131有微弱结合。
表8、CD20×CD3κλ双特异抗体与Fcγ受体的亲和力
KD | FcγRI | FcγRIIAH131 | FcγRIIIAV158 |
CD20×CD3κλ002 | 不结合 | 不结合 | 不结合 |
CD20×CD3κλ003 | 不结合 | 不结合 | 不结合 |
IgG4同型对照 | 14nM | 微弱 | 不结合 |
7.免疫重建小鼠皮下Raji移植瘤模型
选择6~8周雌性B-NGD小鼠(百奥赛图生物科技有限公司),皮下接种3×106Raji细胞,待肿瘤长至60mm3时,随机分组,分别设定为给药组3.0mg/kg、给药组0.6mg/kg、给药组0.12mg/kg和阴性对照组KLH×CD3 3mg/kg。每只小鼠尾静脉注射1×107个PBMC细胞,3天后开始第一次小鼠给药,给药间隔为5天一次,共给药3次。监测小鼠肿瘤体积及小鼠体重,实验结束后断颈处死小鼠,取瘤称重并记录。结果见图17,CD20×CD3κλ双特异抗体的体内药效呈现剂量相关性,中剂量和高剂量抑瘤率分别为82%和89%。荷瘤小鼠对以上剂量耐受良好,无体重减轻等不良反应。
8.免疫缺陷型小鼠皮下Raji与人PBMC混合接瘤模型
选择6~8周雌性B-NGD小鼠(百奥赛图生物科技有限公司),将Raji(3×106个)和人PBMC(5×106个)混合后接种于小鼠皮下,待肿瘤成瘤体积到达60-100mm3时,随机分组。分别设定为给药组3.0mg/mL、给药组0.6mg/mL、给药组0.12mg/mL和阴性对照组KLH×CD33mg/kg。给药间隔为5天一次,共给药2次。监测小鼠肿瘤体积及小鼠体重,实验结束后断颈处死小鼠,取瘤称重并记录。结果见图18,CD20×CD3κλ双特异抗体的体内药效呈现剂量相关性,低、中和高剂量抑瘤率分别为65%、98%和162%,高、中剂量组肿瘤完全抑制或消退。
9.CD20×CD3κλ双特异抗体在食蟹猴中的药效
将8只食蟹猴分配至4个剂量组,每个剂量组由2只猴子组成,雌雄各半。各剂量组接受的给药剂量分别为0.3、1、3mg/kg(每周1次,给药3周,共4次给药)和1mg/kg(单次给药)CD20×CD3κλ002双特异抗体,给药方案见表9。给药期及恢复期,各组所有猴一般状况良好,未见毒性反应,未见死亡或濒死。各剂量组体温未见明显异常改变,II导联心电图波形正常,其心率、R-R间期、P-R间期、QT间期、QRS时限、收缩压、舒张压等指标未见明显异常。在给药后不同时间点,通过流式细胞技术分析外周血中B和T细胞群体数量的变化,B细胞使用细胞表面标记物CD20鉴定(CD20+细胞),T细胞使用CD3鉴定(CD3+细胞)。给药后8小时,外周血中B被快速清除,24小时已低于检测下限(图19)。
表9、CD20×CD3κλ双特异抗体给药方案
实施例3:构建不同类型轻链形成的BCMA×CD3κλ双特异抗体
1.BCMA×CD3κλ双特异抗体的构建
以含κ轻链的BCMA人源化抗体,与含λ轻链的人源化CD3抗体,参考实施例2构建具有天然IgG构型的新型BCMA-CD3κλ人源化双特异抗体,同时在BCMA抗原臂和CD3臂引入电荷变异体(VκBCMA:Gln42Lys;VHBCMA:Gln39Glu;VλCD3:Gln40Glu;VHCD3:Gln39Lys)(序列见表10);双特异抗体的Fc部分采用人IgG4 knob-into-hole结构,以实现异源二聚体配对,并且通过突变Ser228Pro、Leu235Glu和Pro329Ala,保持铰链区稳定并减弱与FcγR受体和C1q的相互作用。
表10、BCMA×CD3κλ双特异抗体
蛋白序列 | BCMA臂轻链 | BCMA臂重链 | CD3臂轻链 | CD3臂重链 |
BCMA×CD3κλ003 | SEQ ID NO.80 | SEQ ID NO.82 | SEQ ID NO.66 | SEQ ID NO.68 |
BCMA×CD3κλ004 | SEQ ID NO.84 | SEQ ID NO.82 | SEQ ID NO.66 | SEQ ID NO.68 |
BCMA×CD3κλ005 | SEQ ID NO.80 | SEQ ID NO.86 | SEQ ID NO.66 | SEQ ID NO.68 |
BCMA×CD3κλ006 | SEQ ID NO.84 | SEQ ID NO.86 | SEQ ID NO.66 | SEQ ID NO.68 |
BCMA×CD3κλ003
BCMA臂κ轻链:SEQ ID NO.80
DIVLTQSPASLAVSPGQRATITCRASKSVSTSGYSYMHWYQKKPGQPPKLLIYLASNLESGVPARFSGSGSGTDFTLTINPVEAEDTANYYCQHSRELPWTFGQGTKVEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
核苷酸序列:SEQ ID NO.81
GACATCGTGCTGACACAGAGCCCTGCTTCTCTGGCTGTGTCTCCTGGCCAGAGAGCCACCATCACCTGTAGAGCCAGCAAGAGCGTGTCCACCAGCGGCTACTCTTACATGCACTGGTATCAGAAGAAGCCCGGCCAGCCTCCTAAGCTGCTGATCTACCTGGCTAGCAACCTCGAAAGCGGAGTGCCTGCTAGATTTTCTGGCAGCGGCTCTGGCACCGACTTCACCCTGACAATCAACCCCGTGGAAGCCGAAGACACCGCCAACTACTACTGCCAGCACAGCAGAGAGCTGCCCTGGACATTTGGCCAGGGCACCAAGGTGGAAATCAAGCGAACTGTGGCTGCACCATCTGTCTTCATCTTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTGCCTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGT
BCMA臂重链(重链1):SEQ ID NO.82
QVQLVQSGSELKKPGASVKVSCKASGYIFTNFGMNWVREAPGQGLEWMGWINTYTGEQIYADGFTGRFVFSLDTSASTAYLQISSLKAEDTAVYFCARGEIYYGYDVGFVYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVCTLPPSQEEMTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLVSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列:SEQ ID NO.83
CAGGTTCAGCTGGTGCAGTCTGGCAGCGAGCTGAAGAAACCTGGCGCCTCTGTGAAGGTGTCCTGCAAGGCTAGCGGCTACATCTTCACCAACTTCGGCATGAACTGGGTCCGAGAGGCTCCTGGACAGGGACTCGAATGGATGGGCTGGATCAACACCTACACCGGCGAGCAGATCTACGCCGATGGCTTCACAGGCAGATTCGTGTTCAGCCTGGACACCAGCGCCAGCACAGCTTACCTGCAGATCAGCTCTCTGAAGGCCGAGGATACCGCCGTGTACTTCTGTGCCAGAGGCGAGATCTACTACGGCTACGACGTGGGCTTTGTGTACTGGGGCCAGGGAACACTGGTCACCGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTGCACCCTGCCACCTAGCCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGAGCTGTGCCGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGGTTTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
CD3臂λ轻链:SEQ ID NO.66
QAVVTQEPSLTVSPGGTVTLTCRSSTGAVTTSNYANWVQEKPGQAPRGLIGGTNKRAPWTPARFSGSLLGGKAALTITGAQAEDEAEYYCVLWYSNLWVFGGGTKLTVLGQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSPVKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTECS
核苷酸序列:SEQ ID NO.67
CAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTAGATCTTCTACAGGCGCCGTGACCACCAGCAACTACGCTAATTGGGTGCAGGAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCGGCGGAACAAACAAGAGAGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACAATCACTGGTGCTCAGGCTGAGGACGAGGCCGAGTACTATTGTGTGCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTGGGTCAGCCCAAGGCGGCGCCCTCGGTCACTCTGTTCCCGCCCTCCTCTGAGGAGCTTCAAGCCAACAAGGCCACACTGGTGTGTCTCATAAGTGACTTCTATCCGGGAGCCGTGACAGTGGCCTGGAAGGCAGATAGCAGCCCCGTCAAGGCGGGAGTGGAGACCACCACACCCTCCAAACAAAGCAACAACAAGTACGCGGCCAGCAGCTACCTGAGCCTGACGCCTGAGCAGTGGAAGTCCCACAGAAGCTACAGCTGCCAGGTCACGCATGAAGGGAGCACCGTGGAGAAGACAGTGGCCCCTACAGAATGTTCA
CD3臂重链(重链2):SEQ ID NO.68
EVQLVESGGGLVQPGGSLRLSCAASGFTFNTYAMNWVRKAPGKGLEWVGRIRSKYNNYATYYADSVKDRFTISRDDSKNSLYLQMNSLKTEDTAVYYCVRHGNFGNSYVSWFAYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVYTLPPCQEEMTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列:SEQ ID NO.69
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAACACCTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGGGAAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACAGCCTGTACCTGCAGATGAACAGCCTGAAAACCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTACACCCTGCCACCTTGTCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGTGGTGTCTGGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGTACTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
BCMA×CD3κλ004
BCMA臂κ轻链:SEQ ID NO.84
DIVLTQSPASLAVSPGQRATITCRASKSVTTSGYSYIHWYQKKPGQPPKLLIYLASDLEAGVPARFSGSGSGTDFTLTINPVEAEDTANYYCQHSRELPWTFGQGTKVEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
核苷酸序列:SEQ ID NO.85
GACATCGTGCTGACACAGAGCCCTGCTTCTCTGGCTGTGTCTCCTGGCCAGAGAGCCACCATCACCTGTAGAGCCAGCAAGAGCGTGACCACCAGCGGCTACTCTTACATCCACTGGTATCAGAAGAAGCCCGGCCAGCCTCCTAAGCTGCTGATCTACCTGGCCAGCGATCTGGAAGCTGGCGTGCCAGCTAGATTTTCTGGCAGCGGCTCTGGCACCGACTTCACCCTGACAATCAACCCCGTGGAAGCCGAAGACACCGCCAACTACTACTGCCAGCACAGCAGAGAGCTGCCCTGGACATTTGGCCAGGGCACCAAGGTGGAAATCAAGCGAACTGTGGCTGCACCATCTGTCTTCATCTTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTGCCTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGT
BCMA臂重链(重链1):SEQ ID NO.86
QVQLVQSGSELKKPGASVKVSCKASGYIFTNFGMNWVREAPGQGLEWMGWINTYTGEQIYADGFTGRFVFSLDTSASTAYLQISSLKAEDTAVYFCARGEIYYGYDVGFVYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVCTLPPSQEEMTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLVSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列:SEQ ID NO.87
CAGGTTCAGCTGGTGCAGTCTGGCAGCGAGCTGAAGAAACCTGGCGCCTCTGTGAAGGTGTCCTGCAAGGCTAGCGGCTACATCTTCACCAACTTCGGCATGAACTGGGTCCGAGAGGCTCCTGGACAGGGACTCGAATGGATGGGCTGGATCAACACCTACACCGGCGAGCAGATCTACGCCGATGGCTTCACAGGCAGATTCGTGTTCAGCCTGGACACCAGCGCCAGCACAGCTTACCTGCAGATCAGCTCTCTGAAGGCCGAGGATACCGCCGTGTACTTCTGTGCCAGAGGCGAGATCTACTACGGCTACGACGTGGGCTTTGTGTACTGGGGCCAGGGAACACTGGTCACCGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTGCACCCTGCCACCTAGCCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGAGCTGTGCCGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGGTTTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
CD3臂λ轻链:SEQ ID NO.66
QAVVTQEPSLTVSPGGTVTLTCRSSTGAVTTSNYANWVQEKPGQAPRGLIGGTNKRAPWTPARFSGSLLGGKAALTITGAQAEDEAEYYCVLWYSNLWVFGGGTKLTVLGQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSPVKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTECS
核苷酸序列:SEQ ID NO.67
CAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTAGATCTTCTACAGGCGCCGTGACCACCAGCAACTACGCTAATTGGGTGCAGGAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCGGCGGAACAAACAAGAGAGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACAATCACTGGTGCTCAGGCTGAGGACGAGGCCGAGTACTATTGTGTGCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTGGGTCAGCCCAAGGCGGCGCCCTCGGTCACTCTGTTCCCGCCCTCCTCTGAGGAGCTTCAAGCCAACAAGGCCACACTGGTGTGTCTCATAAGTGACTTCTATCCGGGAGCCGTGACAGTGGCCTGGAAGGCAGATAGCAGCCCCGTCAAGGCGGGAGTGGAGACCACCACACCCTCCAAACAAAGCAACAACAAGTACGCGGCCAGCAGCTACCTGAGCCTGACGCCTGAGCAGTGGAAGTCCCACAGAAGCTACAGCTGCCAGGTCACGCATGAAGGGAGCACCGTGGAGAAGACAGTGGCCCCTACAGAATGTTCA
CD3臂重链(重链2):SEQ ID NO.68
EVQLVESGGGLVQPGGSLRLSCAASGFTFNTYAMNWVRKAPGKGLEWVGRIRSKYNNYATYYADSVKDRFTISRDDSKNSLYLQMNSLKTEDTAVYYCVRHGNFGNSYVSWFAYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVYTLPPCQEEMTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列:SEQ ID NO.69
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAACACCTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGGGAAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACAGCCTGTACCTGCAGATGAACAGCCTGAAAACCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTACACCCTGCCACCTTGTCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGTGGTGTCTGGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGTACTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
BCMA×CD3κλ005
BCMA臂κ轻链:SEQ ID NO.80
DIVLTQSPASLAVSPGQRATITCRASKSVSTSGYSYMHWYQKKPGQPPKLLIYLASNLESGVPARFSGSGSGTDFTLTINPVEAEDTANYYCQHSRELPWTFGQGTKVEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
核苷酸序列:SEQ ID NO.81
GACATCGTGCTGACACAGAGCCCTGCTTCTCTGGCTGTGTCTCCTGGCCAGAGAGCCACCATCACCTGTAGAGCCAGCAAGAGCGTGTCCACCAGCGGCTACTCTTACATGCACTGGTATCAGAAGAAGCCCGGCCAGCCTCCTAAGCTGCTGATCTACCTGGCTAGCAACCTCGAAAGCGGAGTGCCTGCTAGATTTTCTGGCAGCGGCTCTGGCACCGACTTCACCCTGACAATCAACCCCGTGGAAGCCGAAGACACCGCCAACTACTACTGCCAGCACAGCAGAGAGCTGCCCTGGACATTTGGCCAGGGCACCAAGGTGGAAATCAAGCGAACTGTGGCTGCACCATCTGTCTTCATCTTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTGCCTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGT
BCMA臂重链(重链1):SEQ ID NO.86
QVQLVQSGSELKKPGASVKVSCKASGYIFTNFGMNWVREAPGQGLEWMGWINTYTGEQIYADGFTGRFVFSLDTSVSTAYLQISSLKAEDTAVYFCARGEIYYGYDVGFVYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVCTLPPSQEEMTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLVSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列:SEQ ID NO.87
CAGGTTCAGCTGGTGCAGTCTGGCAGCGAGCTGAAGAAACCTGGCGCCTCTGTGAAGGTGTCCTGCAAGGCTAGCGGCTACATCTTCACCAACTTCGGCATGAACTGGGTCCGAGAGGCTCCTGGACAGGGACTCGAATGGATGGGCTGGATCAACACCTACACCGGCGAGCAGATCTACGCCGATGGCTTCACAGGCAGATTCGTGTTCAGCCTGGACACCAGCGTCAGCACAGCTTACCTGCAGATCAGCTCTCTGAAGGCCGAGGATACCGCCGTGTACTTCTGTGCCAGAGGCGAGATCTACTACGGCTACGACGTGGGCTTTGTGTACTGGGGCCAGGGAACACTGGTCACCGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTGCACCCTGCCACCTAGCCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGAGCTGTGCCGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGGTTTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
CD3臂λ轻链:SEQ ID NO.66
QAVVTQEPSLTVSPGGTVTLTCRSSTGAVTTSNYANWVQEKPGQAPRGLIGGTNKRAPWTPARFSGSLLGGKAALTITGAQAEDEAEYYCVLWYSNLWVFGGGTKLTVLGQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSPVKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTECS
核苷酸序列:SEQ ID NO.67
CAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTAGATCTTCTACAGGCGCCGTGACCACCAGCAACTACGCTAATTGGGTGCAGGAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCGGCGGAACAAACAAGAGAGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACAATCACTGGTGCTCAGGCTGAGGACGAGGCCGAGTACTATTGTGTGCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTGGGTCAGCCCAAGGCGGCGCCCTCGGTCACTCTGTTCCCGCCCTCCTCTGAGGAGCTTCAAGCCAACAAGGCCACACTGGTGTGTCTCATAAGTGACTTCTATCCGGGAGCCGTGACAGTGGCCTGGAAGGCAGATAGCAGCCCCGTCAAGGCGGGAGTGGAGACCACCACACCCTCCAAACAAAGCAACAACAAGTACGCGGCCAGCAGCTACCTGAGCCTGACGCCTGAGCAGTGGAAGTCCCACAGAAGCTACAGCTGCCAGGTCACGCATGAAGGGAGCACCGTGGAGAAGACAGTGGCCCCTACAGAATGTTCA
CD3臂重链(重链2):SEQ ID NO.68
EVQLVESGGGLVQPGGSLRLSCAASGFTFNTYAMNWVRKAPGKGLEWVGRIRSKYNNYATYYADSVKDRFTISRDDSKNSLYLQMNSLKTEDTAVYYCVRHGNFGNSYVSWFAYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVYTLPPCQEEMTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列:SEQ ID NO.69
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAACACCTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGGGAAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACAGCCTGTACCTGCAGATGAACAGCCTGAAAACCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTACACCCTGCCACCTTGTCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGTGGTGTCTGGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGTACTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
BCMA×CD3κλ006
BCMA臂κ轻链:SEQ ID NO.84
DIVLTQSPASLAVSPGQRATITCRASKSVTTSGYSYIHWYQKKPGQPPKLLIYLASDLEAGVPARFSGSGSGTDFTLTINPVEAEDTANYYCQHSRELPWTFGQGTKVEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
核苷酸序列:SEQ ID NO.85
GACATCGTGCTGACACAGAGCCCTGCTTCTCTGGCTGTGTCTCCTGGCCAGAGAGCCACCATCACCTGTAGAGCCAGCAAGAGCGTGACCACCAGCGGCTACTCTTACATCCACTGGTATCAGAAGAAGCCCGGCCAGCCTCCTAAGCTGCTGATCTACCTGGCCAGCGATCTGGAAGCTGGCGTGCCAGCTAGATTTTCTGGCAGCGGCTCTGGCACCGACTTCACCCTGACAATCAACCCCGTGGAAGCCGAAGACACCGCCAACTACTACTGCCAGCACAGCAGAGAGCTGCCCTGGACATTTGGCCAGGGCACCAAGGTGGAAATCAAGCGAACTGTGGCTGCACCATCTGTCTTCATCTTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTGCCTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGT
BCMA臂重链(重链1):SEQ ID NO.86
QVQLVQSGSELKKPGASVKVSCKASGYIFTNFGMNWVREAPGQGLEWMGWINTYTGEQIYADGFTGRFVFSLDTSVSTAYLQISSLKAEDTAVYFCARGEIYYGYDVGFVYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVCTLPPSQEEMTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLVSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列:SEQ ID NO.87
CAGGTTCAGCTGGTGCAGTCTGGCAGCGAGCTGAAGAAACCTGGCGCCTCTGTGAAGGTGTCCTGCAAGGCTAGCGGCTACATCTTCACCAACTTCGGCATGAACTGGGTCCGAGAGGCTCCTGGACAGGGACTCGAATGGATGGGCTGGATCAACACCTACACCGGCGAGCAGATCTACGCCGATGGCTTCACAGGCAGATTCGTGTTCAGCCTGGACACCAGCGTCAGCACAGCTTACCTGCAGATCAGCTCTCTGAAGGCCGAGGATACCGCCGTGTACTTCTGTGCCAGAGGCGAGATCTACTACGGCTACGACGTGGGCTTTGTGTACTGGGGCCAGGGAACACTGGTCACCGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTGCACCCTGCCACCTAGCCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGAGCTGTGCCGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGGTTTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
CD3臂λ轻链:SEQ ID NO.66
QAVVTQEPSLTVSPGGTVTLTCRSSTGAVTTSNYANWVQEKPGQAPRGLIGGTNKRAPWTPARFSGSLLGGKAALTITGAQAEDEAEYYCVLWYSNLWVFGGGTKLTVLGQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSPVKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTECS
核苷酸序列:SEQ ID NO.67
CAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTAGATCTTCTACAGGCGCCGTGACCACCAGCAACTACGCTAATTGGGTGCAGGAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCGGCGGAACAAACAAGAGAGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACAATCACTGGTGCTCAGGCTGAGGACGAGGCCGAGTACTATTGTGTGCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTGGGTCAGCCCAAGGCGGCGCCCTCGGTCACTCTGTTCCCGCCCTCCTCTGAGGAGCTTCAAGCCAACAAGGCCACACTGGTGTGTCTCATAAGTGACTTCTATCCGGGAGCCGTGACAGTGGCCTGGAAGGCAGATAGCAGCCCCGTCAAGGCGGGAGTGGAGACCACCACACCCTCCAAACAAAGCAACAACAAGTACGCGGCCAGCAGCTACCTGAGCCTGACGCCTGAGCAGTGGAAGTCCCACAGAAGCTACAGCTGCCAGGTCACGCATGAAGGGAGCACCGTGGAGAAGACAGTGGCCCCTACAGAATGTTCA
CD3臂重链(重链2):SEQ ID NO.68
EVQLVESGGGLVQPGGSLRLSCAASGFTFNTYAMNWVRKAPGKGLEWVGRIRSKYNNYATYYADSVKDRFTISRDDSKNSLYLQMNSLKTEDTAVYYCVRHGNFGNSYVSWFAYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVYTLPPCQEEMTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列:SEQ ID NO.69
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAACACCTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGGGAAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACAGCCTGTACCTGCAGATGAACAGCCTGAAAACCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTACACCCTGCCACCTTGTCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGTGGTGTCTGGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGTACTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
2.BCMA×CD3κλ双特异抗体的表达和纯化
将编码相应抗体片段的质粒,按BCMA臂轻链(κ轻链):CD3臂轻链(λ轻链):BCMA臂重链(重链1):CD3臂重链(重链2)=2:2:1:1的比率混合,与3mg/mL PEI混合后,共同转染CHO-S细胞,在500mL CD CHO AGT培养基(Gibco#12490-001)37℃5%CO2 150rpm培养,分别在瞬转第2、4和6天,加入4%CHO Feed C+补料(Gibco#A25031-05)。当细胞活率降至85%左右,收获发酵液,过滤后经Protein A亲和层析初步纯化,SEC-HPLC单体含量显示接近或高于92%;经Capto S ImpAct离子交换层析,单体含量进一步提高至98-99%以上(表11)。
表11、BCMA×CD3κλ双特异抗体的纯度
3.BCMA×CD3κλ双特异抗体的结合活性
(1)BCMA×CD3κλ双特异抗体与抗原的亲和力测定
将10μg/mL人或食蟹猴BCMA或CD3εγ重组抗原通过氨基偶联结合到CM5芯片(GEhealthcare),控制抗原结合量约200RU。基线平稳后,将梯度稀释的抗体(从10μg/mL起,2倍稀释7个梯度),以30μL/min的流速流过芯片,结合时间350秒,解离时间600秒。用BiacoreT200 evaluation软件以1:1结合模型,拟合得到动力学常数。亲和力测定结果见表12。
表12、BCMA×CD3κλ双特异性抗体与抗原的亲和力
KD(nM) | 人BCMA | 食蟹猴BCMA | 人CD3εγ | 食蟹猴CD3εγ |
BCMA×CD3κλ003 | 1.3 | 0.16 | 31 | 43 |
BCMA×CD3κλ004 | 1.0 | 0.12 | 32 | 43 |
BCMA×CD3κλ005 | 1.1 | 0.09 | 28 | 20 |
BCMA×CD3κλ006 | 1.2 | 0.10 | 27 | 33 |
(2)BCMA×CD3κλ双特异抗体与BCMA+细胞的结合
分别取对数生长期的CHO-人BCMA稳转细胞(CHO-hBCMA)和CHO-食蟹猴BCMA稳转细胞(CHO-cynoBCMA),和肿瘤细胞NCI-H929和RPMI-8226,封闭后每孔加入100μL梯度稀释的抗体(起始浓度1800nM,3倍稀释,10个梯度),4℃孵育60分钟。二抗加入50μL/孔AlexaFluro647标记的山羊抗人IgG Fc(1:300稀释),冰上孵育20分钟,洗1次后加入50μL/孔PI溶液(1:300),孵育5分钟,用流式细胞仪进行检测。图20显示,BCMA×CD3κλ双特异抗体高亲和力结合人、食蟹猴BCMA稳转细胞;图21显示,BCMA×CD3κλ双特异抗体高亲和力结合BCMA+肿瘤细胞NCI-H929和RPMI-8226。BCMA×CD3κλ双特异抗体与细胞的结合常数EC50见表13。
表13、BCMA×CD3κλ双特异性抗体和BCMA稳转细胞的结合
EC50(nM) | 人BCMA-CHO | 食蟹猴BCMA-CHO | NCI-H929 | RPMI-8226 |
BCMA×CD3κλ003 | 16 | 3 | 34 | 34 |
BCMA×CD3κλ004 | 22 | 3 | 36 | 39 |
BCMA×CD3κλ005 | 24 | 3 | 33 | 38 |
BCMA×CD3κλ006 | 16 | 3 | 32 | 19 |
KLH×CD3 | - | - | - | - |
(3)BCMA×CD3κλ双特异抗体与Jurkat细胞的结合
取对数生长期的Jurkat细胞,加入200μg/mL鼠IgG(Jackson ImmunoResearch,115-005-03),冰浴30分钟。用4%小牛血清调整细胞至5×105细胞/mL,每孔100μL加入96孔U型板,300g离心去上清,每孔加入100μL梯度稀释的抗体(起始浓度1800nM,3倍稀释,10个梯度),4℃孵育60分钟。二抗加入50μL/孔Alexa Fluro647标记的山羊抗人IgG Fc(1:300稀释),冰上孵育20分钟,洗1次后加入50μL/孔PI,孵育5分钟,用流式细胞仪(BD C6)进行检测。检测结果如图22和表14,BCMA×CD3κλ双特异抗体以中亲和力结合人白血病T细胞系Jurkat细胞。
(4)BCMAxCD3κλ双特异抗体与外周血T细胞的结合
取新鲜人外周血,通过Ficoll.Paque Plu(GE,17-1440-03)分离得到PBMC。将PBMC用4%小牛血清(Hyclone,SH30626.06)调整细胞至5×105个细胞/mL,100μL/孔加入96孔U型板,离心弃上清,每孔加入100μL梯度稀释的抗体(起始浓度1800nM,3倍稀释,10个梯度),4℃孵育60分钟。二抗加入50μL/孔Alexa Fluro647标记的山羊抗人IgG Fc(1:300稀释),冰浴20分钟,洗1次后加入50μL/孔PI,孵育5分钟,用流式细胞仪(BD C6)进行检测。对照抗体REGN5458参照US20200024356合成并制备。检测结果见图23和表14所示,BCMA×CD3κλ双特异抗体识别人外周血CD4+T和CD8+T细胞,与人T细胞亲和力约60-97nM,均弱于BCMA抗原臂与BCMA受体的结合力,有利于双特异抗体优先富集到肿瘤细胞。
表14、BCMA×CD3κλ双特异抗体与Jurkat细胞的结合
EC50(nM) | Jurkat | CD4+T | CD8+T |
BCMA×CD3κλ003 | 66 | 89 | 97 |
BCMA×CD3κλ004 | 61 | 79 | 67 |
BCMA×CD3κλ005 | 51 | 66 | 60 |
BCMA×CD3κλ006 | 56 | 91 | 93 |
KLH×CD3 | 76 | 57 | 62 |
4.BCMA×CD3κλ双特异抗体介导的TDCC作用
取新鲜分离得到的PBMC分别与处于对数生长期的靶细胞NCI-H929和RPMI-8226细胞混合,效应/靶细胞=8:1,每孔加入50μL梯度稀释的抗体(抗体浓度从66.7nM起,10倍稀释,7个梯度),5%CO2 37℃培养24小时。培养结束后,将50μL上清转移至新的黑色酶标板,加入50μL/孔LDH检测底物,10分钟后终止反应并检测LDH释放;孔内剩余细胞用4%小牛血清洗2次后,加入100μg/mL人IgG孵育10分钟,再加入T细胞活化检测抗体(CD25-PE,CD4-APC,CD69-FITC和CD8-APC),冰上孵育20分钟。洗涤弃上清,加入60μL/孔PI,置于冰上孵育5分钟,用流式细胞仪进行检测。图24A、24B分别显示BCMA×CD3κλ双特异抗体对NCI-H929细胞的杀伤和对T细胞的活化。图25A、25B分别显示BCMA×CD3κλ双特异抗体对RPMI-8226细胞的杀伤和对T细胞的活化。对于BCMA表达水平不同的肿瘤细胞NCI-H929和RPMI-8226,BCMA×CD3κλ双特异抗体均可介导T细胞产生有效杀伤作用,杀伤活性与对照抗体REGN5458相当。
5.BCMA×CD3κλ双特异抗体对T细胞活化通路的激活
取对数生长期的Jurkat-NFAT-luc报告细胞和BCMA阳性靶细胞RPMI-8226,离心弃上清,重悬至2×106个细胞/ml。50μl/孔接种靶细胞至96孔板,300g离心5分钟弃上清,50μl/孔接种Jurkat-NFAT-luc报告细胞至96孔板,每孔加入50μL梯度稀释的BCMA×CD3κλ双特异抗体或对照抗体KLH×CD3(起始浓度20μg/ml,10倍稀释,10个梯度),5%CO2,37℃培养6小时。培养结束后,按照ONE-Glo Luciferase Assay System说明书,每孔加入100μL检测试剂,室温放置3分钟,于酶标仪(Biotek Synergy HT)检测。检测结果见图26,BCMA×CD3κλ双特异抗体以RPMI-8226肿瘤细胞为靶细胞时,可激活T细胞的NFAT信号通路;无靶细胞时,不激活NFAT信号通路。
6.BCMA×CD3κλ双特异抗体对PBMC的非特异激活
取新鲜分离得到的PBMC,每孔加入50μL梯度稀释的抗体(抗体浓度从66.7nM起,10倍稀释,7个梯度),5%CO2 37℃培养24小时。培养结束后,将50μL上清转移至新的黑色酶标板,加入50μL/孔LDH检测底物,10分钟后终止反应并检测LDH释放;孔内剩余细胞用4%小牛血清洗2次后,加入100μg/mL人IgG孵育10分钟,再加入T细胞活化检测抗体(CD25-PE,CD4-APC,CD69-FITC和CD8-APC),冰上孵育20分钟。洗涤弃上清,加入60μL/孔PI,置于冰上孵育5分钟,用流式细胞仪进行检测。检测结果见图27,在缺乏靶细胞的条件下,BCMA×CD3κλ双特异抗体对外周血T细胞无激活作用,与阴性对照KLH×CD3相当。
7.BCMA×CD3κλ人源化双特异抗体与Fc受体的结合
将50μg/ml His-Tag抗体通过氨基偶联到CM5芯片,分别捕获带有His6标签的FcγRI、FcγRIIAH131和FcγRIIIAV158重组蛋白,捕获时间40秒,流速10μL/min,基线平稳后,将梯度稀释的抗体(起始浓度37.5μg/mL,2倍稀释)以30μL/min的流速流过芯片,结合时间120秒,解离时间200秒,用Biacore evaluation软件拟合得到亲和力常数。由图28可见,BCMA×CD3κλ双特异抗体与FcγRI、FcγRIIAH131和FcγRIIIAV158均无结合;野生型IgG4对照抗体以较强亲和力结合FcγRI,与FcγRIIAH131有弱结合。
8.免疫缺陷型小鼠皮下NCI-H929移植瘤模型
选择6~8周雌性B-NGD小鼠(百奥赛图生物科技有限公司),皮下接种2×106NCI-H929细胞(与基质胶(Matrigel)1:1混合),待肿瘤长至60mm3时,随机分组,分别为给药组3.0mg/kg、给药组0.6mg/kg和阴性对照组KLH×CD33mg/kg。每只小鼠尾静脉注射1×107个PBMC细胞,3天后开始第一次小鼠给药,给药间隔为5天一次,共给药2次。每2天监测一次小鼠肿瘤体积及小鼠体重,实验结束后断颈处死小鼠,取瘤称重并记录。结果见图29,BCMA×CD3κλ双特异抗体的体内药效呈现剂量相关性,3.0mg/kg给药组和0.6mg/kg给药组抑瘤率分别为95%和108%(BCMA×CD3κλ005)以及94%和108%(BCMA×CD3κλ006)。荷瘤小鼠对以上剂量耐受良好,无体重减轻等不良反应。
实施例4:构建不同类型轻链形成的GPC3×CD3κλ双特异抗体
1.GPC3×CD3κλ双特异抗体的构建
将含κ轻链的人源化GPC3抗体,与含λ轻链的人源化CD3抗体,参考实施例2构建具有天然IgG构型的新型GPC3-CD3κλ人源化双特异抗体,同时在GPC3抗原臂和CD3臂引入电荷变异体(VκGPC3:Gln43Lys;VHGPC3:Gln39Glu;VλCD3:Gln40Glu;VHCD3:Gln39Lys)(序列见表15)。双特异抗体的Fc部分采用人IgG4 knob-into-hole结构,以实现异源二聚体配对,并且通过突变Ser228Pro、Leu235Glu和Pro329Ala,保持铰链区稳定并减弱与Fcγ受体和C1q的相互作用。
表15、GPC3×CD3κλ人源化双特异抗体
CD20臂轻链 | CD20臂重链 | CD3臂轻链 | CD3臂重链 | |
GPC3×CD3κλ002 | SEQ ID NO.88 | SEQ ID NO.90 | SEQ ID NO.66 | SEQ ID NO.68 |
GPC3×CD3κλ003 | SEQ ID NO.92 | SEQ ID NO.94 | SEQ ID NO.66 | SEQ ID NO.68 |
GPC3×CD3κλ002:
GPC3臂κ轻链SEQ ID NO.88
DVVMTQSPLSLPVTPGEPASISCRSSQSIVHSNGNTYLEWYLKKPGQSPQLLIYKVSNRFSGVPDRFSGSGSGTDFTLKISRVEAEDVGVYFCLQVTHVPLTFGQGTKLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
核苷酸序列SEQ ID NO.89
GACGTGGTCATGACACAGAGCCCTCTGAGCCTGCCTGTGACACCTGGCGAACCTGCCAGCATCAGCTGTAGAAGCAGCCAGAGCATCGTGCACAGCAACGGCAACACATACCTGGAGTGGTATCTGAAGAAGCCCGGCCAGTCTCCTCAGCTGCTGATCTACAAGGTGTCCAACAGATTCAGCGGCGTGCCCGACAGATTCTCTGGCTCTGGATCTGGCACCGACTTCACCCTGAAGATCTCCAGAGTGGAAGCCGAGGACGTGGGCGTGTACTTCTGTCTCCAGGTCACACACGTGCCCCTGACATTTGGCCAGGGCACCAAGCTGGAAATCAAGCGAACTGTGGCTGCACCATCTGTCTTCATCTTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTGCCTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGT
GPC3臂重链(重链1)SEQ ID NO.90
QVQLVQSGAEVKKPGSSVKVSCKASGYTFADYEIHWVREAPGQGLEWMGAIHPGSGGTAYAQKFQGRVTLTADESSTTAYMELSSLRSEDTAVYYCTRYYSFAYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVCTLPPSQEEMTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLVSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列SEQ ID NO.91
CAGGTTCAGCTGGTTCAGTCTGGCGCCGAAGTGAAGAAACCTGGCAGCAGCGTGAAGGTGTCCTGCAAGGCTAGCGGCTACACCTTCGCCGACTACGAGATCCACTGGGTCCGAGAGGCTCCAGGACAGGGACTTGAATGGATGGGCGCTATCCATCCTGGCTCTGGCGGCACAGCTTACGCCCAGAAATTCCAGGGCAGAGTGACCCTGACCGCCGACGAGTCTAGCACCACCGCCTACATGGAACTGAGCAGCCTGAGAAGCGAGGACACCGCCGTGTACTACTGCACCCGGTACTACAGCTTCGCCTACTGGGGACAGGGAACCCTGGTCACAGTCAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTGCACCCTGCCACCTAGCCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGAGCTGTGCCGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGGTTTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
CD3臂λ轻链SEQ ID NO.66
QAVVTQEPSLTVSPGGTVTLTCRSSTGAVTTSNYANWVQEKPGQAPRGLIGGTNKRAPWTPARFSGSLLGGKAALTITGAQAEDEAEYYCVLWYSNLWVFGGGTKLTVLGQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSPVKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTECS
核苷酸序列SEQ ID NO.67
CAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTAGATCTTCTACAGGCGCCGTGACCACCAGCAACTACGCTAATTGGGTGCAGGAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCGGCGGAACAAACAAGAGAGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACAATCACTGGTGCTCAGGCTGAGGACGAGGCCGAGTACTATTGTGTGCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTGGGTCAGCCCAAGGCGGCGCCCTCGGTCACTCTGTTCCCGCCCTCCTCTGAGGAGCTTCAAGCCAACAAGGCCACACTGGTGTGTCTCATAAGTGACTTCTATCCGGGAGCCGTGACAGTGGCCTGGAAGGCAGATAGCAGCCCCGTCAAGGCGGGAGTGGAGACCACCACACCCTCCAAACAAAGCAACAACAAGTACGCGGCCAGCAGCTACCTGAGCCTGACGCCTGAGCAGTGGAAGTCCCACAGAAGCTACAGCTGCCAGGTCACGCATGAAGGGAGCACCGTGGAGAAGACAGTGGCCCCTACAGAATGTTCA
CD3臂重链(重链2)SEQ ID NO.68
EVQLVESGGGLVQPGGSLRLSCAASGFTFNTYAMNWVRKAPGKGLEWVGRIRSKYNNYATYYADSVKDRFTISRDDSKNSLYLQMNSLKTEDTAVYYCVRHGNFGNSYVSWFAYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVYTLPPCQEEMTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列SEQ ID NO.69
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAACACCTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGGGAAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACAGCCTGTACCTGCAGATGAACAGCCTGAAAACCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTACACCCTGCCACCTTGTCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGTGGTGTCTGGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGTACTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
GPC3×CD3κλ003:
GPC3臂κ轻链SEQ ID NO.92
DVVMTQSPLSLPVTPGEPASISCRSSQSIVHSNGNTYLEWYLKKPGQSPQLLIYKVSNRFSGVPDRFSGSGSGTDFTLKISRVEAEDVGVYFCLQVTHVPLTFGQGTKLEIKRTVAAPSVFIFPPSDKKLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
核苷酸序列SEQ ID NO.93
GACGTGGTCATGACACAGAGCCCTCTGAGCCTGCCTGTGACACCTGGCGAACCTGCCAGCATCAGCTGTAGAAGCAGCCAGAGCATCGTGCACAGCAACGGCAACACATACCTGGAGTGGTATCTGAAGAAGCCCGGCCAGTCTCCTCAGCTGCTGATCTACAAGGTGTCCAACAGATTCAGCGGCGTGCCCGACAGATTCTCTGGCTCTGGATCTGGCACCGACTTCACCCTGAAGATCTCCAGAGTGGAAGCCGAGGACGTGGGCGTGTACTTCTGTCTCCAGGTCACACACGTGCCCCTGACATTTGGCCAGGGCACCAAGCTGGAAATCAAGCGAACTGTGGCTGCACCATCTGTCTTCATCTTCCCGCCATCTGATAAGAAATTGAAATCTGGAACTGCCTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGT
GPC3臂重链(重链1)SEQ ID NO.94
QVQLVQSGAEVKKPGSSVKVSCKASGYTFADYEIHWVREAPGQGLEWMGAIHPGSGGTAYAQKFQGRVTLTADESSTTAYMELSSLRSEDTAVYYCTRYYSFAYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVEDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDERVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVCTLPPSQEEMTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLVSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列SEQ ID NO.95
CAGGTTCAGCTGGTTCAGTCTGGCGCCGAAGTGAAGAAACCTGGCAGCAGCGTGAAGGTGTCCTGCAAGGCTAGCGGCTACACCTTCGCCGACTACGAGATCCACTGGGTCCGAGAGGCTCCAGGACAGGGACTTGAATGGATGGGCGCTATCCATCCTGGCTCTGGCGGCACAGCTTACGCCCAGAAATTCCAGGGCAGAGTGACCCTGACCGCCGACGAGTCTAGCACCACCGCCTACATGGAACTGAGCAGCCTGAGAAGCGAGGACACCGCCGTGTACTACTGCACCCGGTACTACAGCTTCGCCTACTGGGGACAGGGAACCCTGGTCACAGTCAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGGAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACGAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAAGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTGCACCCTGCCACCTAGCCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGAGCTGTGCCGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGGTTTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
CD3臂λ轻链SEQ ID NO.66
QAVVTQEPSLTVSPGGTVTLTCRSSTGAVTTSNYANWVQEKPGQAPRGLIGGTNKRAPWTPARFSGSLLGGKAALTITGAQAEDEAEYYCVLWYSNLWVFGGGTKLTVLGQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSPVKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTECS
核苷酸序列SEQ ID NO.67
CAGGCTGTGGTCACACAAGAGCCTAGCCTGACAGTGTCTCCTGGCGGCACAGTGACCCTGACCTGTAGATCTTCTACAGGCGCCGTGACCACCAGCAACTACGCTAATTGGGTGCAGGAGAAGCCCGGCCAGGCTCCTAGAGGACTGATCGGCGGAACAAACAAGAGAGCCCCTTGGACACCCGCCAGATTCTCTGGATCTCTGCTCGGCGGAAAGGCCGCTCTGACAATCACTGGTGCTCAGGCTGAGGACGAGGCCGAGTACTATTGTGTGCTGTGGTACAGCAACCTGTGGGTGTTCGGCGGAGGCACCAAACTGACAGTTCTGGGTCAGCCCAAGGCGGCGCCCTCGGTCACTCTGTTCCCGCCCTCCTCTGAGGAGCTTCAAGCCAACAAGGCCACACTGGTGTGTCTCATAAGTGACTTCTATCCGGGAGCCGTGACAGTGGCCTGGAAGGCAGATAGCAGCCCCGTCAAGGCGGGAGTGGAGACCACCACACCCTCCAAACAAAGCAACAACAAGTACGCGGCCAGCAGCTACCTGAGCCTGACGCCTGAGCAGTGGAAGTCCCACAGAAGCTACAGCTGCCAGGTCACGCATGAAGGGAGCACCGTGGAGAAGACAGTGGCCCCTACAGAATGTTCA
CD3臂重链(重链2)SEQ ID NO.68
EVQLVESGGGLVQPGGSLRLSCAASGFTFNTYAMNWVRKAPGKGLEWVGRIRSKYNNYATYYADSVKDRFTISRDDSKNSLYLQMNSLKTEDTAVYYCVRHGNFGNSYVSWFAYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEFEGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLASSIEKTISKAKGQPREPQVYTLPPCQEEMTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK
核苷酸序列SEQ ID NO.69
GAGGTGCAGCTGGTTGAATCTGGCGGAGGACTGGTTCAGCCTGGCGGATCTCTGAGACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAACACCTACGCTATGAACTGGGTCCGAAAGGCCCCTGGCAAAGGACTGGAATGGGTGGGAAGAATCAGGTCCAAGTACAACAACTACGCCACCTACTACGCCGACAGCGTGAAGGACAGATTCACCATCAGCAGGGACGACAGCAAGAACAGCCTGTACCTGCAGATGAACAGCCTGAAAACCGAGGACACCGCCGTGTACTACTGTGTCAGACACGGCAACTTCGGCAACAGCTATGTGTCTTGGTTTGCCTACTGGGGCCAGGGCACACTGGTCACAGTTAGCTCTGCTAGCACCAAGGGCCCCAGCGTGTTCCCCCTGGCCCCTTGCAGCAGAAGCACCAGCGAGAGCACAGCCGCCCTGGGCTGCCTGGTGAAGGACTACTTCCCCGAGCCCGTGACCGTGTCCTGGAACAGCGGCGCTCTGACCAGCGGCGTGCATACCTTCCCCGCCGTGCTCCAGAGCAGCGGACTGTACTCCCTGAGCAGCGTGGTGACCGTGCCTTCCAGCAGCCTGGGCACCAAGACCTACACCTGCAACGTGGACCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTGGAGAGCAAGTACGGCCCTCCCTGCCCCCCTTGCCCTGCCCCCGAGTTCGAGGGCGGACCTAGCGTGTTCCTGTTCCCCCCCAAGCCCAAGGACACCCTGATGATCAGCAGAACCCCCGAGGTGACCTGCGTGGTGGTGGACGTGTCCCAGGAGGACCCCGAGGTCCAGTTTAATTGGTACGTGGACGGCGTGGAAGTGCATAACGCCAAGACCAAGCCCAGAGAGGAGCAGTTCAACAGCACCTACAGAGTGGTGTCCGTGCTGACCGTGCTGCACCAGGACTGGCTGAACGGCAAGGAATACAAGTGCAAGGTCTCCAACAAGGGCCTGGCCAGCAGCATCGAGAAGACCATCAGCAAGGCCAAGGGCCAGCCACGGGAGCCCCAGGTCTACACCCTGCCACCTTGTCAAGAGGAGATGACCAAGAACCAGGTGTCCCTGTGGTGTCTGGTGAAAGGCTTCTATCCCAGCGATATCGCCGTGGAGTGGGAGAGCAACGGCCAGCCCGAGAACAACTACAAGACCACCCCCCCTGTGCTGGACAGCGACGGCAGCTTCTTCCTGTACTCCAAGCTGACCGTGGACAAGTCCAGATGGCAGGAGGGCAACGTCTTCAGCTGCTCCGTGATGCACGAGGCCCTGCACAACCACTACACCCAGAAGTCCCTGAGCCTGAGCCTGGGCAAG
将编码相应抗体片段的质粒,按GPC3臂轻链(κ轻链):CD3臂轻链(λ轻链):GPC3臂重链(重链1):CD3臂重链(重链2)=2:2:1:1的比率混合,与3mg/mL PEI混合后,共同转染CHO-S细胞,在500mL CD CHO AGT培养基(Gibco#12490-001)37℃5%CO2 150rpm培养,分别在瞬转第2、4和6天,加入4%CHO Feed C+补料(Gibco#A25031-05)。当细胞活率降至85%左右,收获发酵液,过滤后经Protein A亲和层析初步纯化,SEC-HPLC单体含量显示高于92%;经Butyl HP疏水层析和Capto Q阴离子层析,单体含量进一步提高至99.5%以上(表16)。
表16、GPC3-CD3人源化双特异抗体的纯化
2.GPC3×CD3κλ双特异抗体与GPC3稳转细胞的结合
取对数生长期的CHO-人GPC3、CHO-食蟹猴GPC3稳转细胞或人肝细胞癌HepG2肿瘤细胞,封闭后调整细胞至5×105个细胞/ml,加入100μl/孔细胞悬液至96孔U型板,300g离心5分钟,弃上清,每孔加入100μL梯度稀释的抗体(起始浓度1800nM,3倍稀释,10个梯度),4℃孵育60分钟。二抗加入50μL/孔Alexa Fluro647标记的山羊抗人IgG Fc(1:300稀释),冰上孵育20分钟,洗1次后加入50μL/孔PI溶液(1:300),孵育5分钟,用流式细胞仪进行检测。结果见图30-31和表17,GPC3×CD3κλ双特异抗体高亲和力结合GPC3+细胞。
表17、GPC3×CD3κλ双特异性抗体和GPC3+细胞的结合
EC50 | 人GPC3-CHO | 食蟹猴GPC3-CHO | HepG2 |
GPC3×CD3κλ002 | 2.8nM | 3.0nM | 2.1nM |
GPC3×CD3κλ003 | 2.9nM | 3.0nM | 2.5nM |
KLH×CD3 | 不结合 | 不结合 | 不结合 |
3.GPC3×CD3κλ双特异抗体与Jurkat细胞的结合
取对数生长期的Jurkat细胞,加入200μg/mL鼠IgG(Jackson ImmunoResearch,115-005-03),冰浴30分钟。用4%小牛血清调整细胞至5×105细胞/mL,每孔100μL加入96孔U型板,300g离心去上清,每孔加入100μL梯度稀释的抗体(起始浓度1800nM,3倍稀释,10个梯度),4℃孵育60分钟。二抗加入50μL/孔Alexa Fluro647标记的山羊抗人IgG Fc(1:300稀释),冰上孵育20分钟,洗1次后加入50μL/孔PI,孵育5分钟,用流式细胞仪(BD C6)进行检测。检测结果如图32和表18,GPC3×CD3κλ双特异抗体以中等亲和力结合人白血病T细胞系Jurkat细胞,EC50约20-40nM。
4.GPC3×CD3κλ双特异抗体与外周血T细胞的结合
取新鲜人或食蟹猴外周血,通过Ficoll.Paque Plus(GE,17-1440-03)分离得到PBMC。将PBMC用4%小牛血清(Hyclone,SH30626.06)调整细胞至5×105个细胞/mL,100μL/孔加入96孔U型板,离心弃上清,每孔加入100μL梯度稀释的抗体(起始浓度1800nM,3倍稀释,10个梯度),4℃孵育60分钟。二抗加入50μL/孔Alexa Fluro647标记的山羊抗人IgG Fc(1:300稀释),冰浴20分钟,洗1次后加入50μL/孔PI,孵育5分钟,用流式细胞仪(BDCelesta)进行检测。检测结果见图33和表18,GPC3×CD3κλ双特异抗体以低亲和力结合人外周血T细胞。
表18、GPC3×CD3κλ双特异抗体与T细胞的结合
EC50 | Jurkat | CD4+T | CD8+T |
GPC3×CD3κλ002 | 36nM | 65nM | 65nM |
GPC3×CD3κλ003 | 26nM | 56nM | 69nM |
KLH×CD3 | 27nM | 77nM | 84nM |
5.GPC3×CD3κλ双特异抗体介导的TDCC作用
取新鲜分离得到的PBMC分别与处于对数生长期的靶细胞HepG2细胞混合,效应/靶细胞=10:1,每孔加入50μL梯度稀释的抗体(抗体浓度从66.7nM起,10倍稀释,7个梯度),5%CO2 37℃培养24小时。培养结束后,将50μL上清转移至新的黑色酶标板,加入50μL/孔LDH检测底物,10分钟后终止反应并检测LDH释放;孔内剩余细胞用4%小牛血清洗2次后,加入100μg/mL人IgG孵育10分钟,再加入T细胞活化检测抗体(CD25-BV421,CD4-FITC,CD69-BV605和CD8-APC),冰上孵育20分钟。洗涤弃上清,加入60μL/孔PI,置于冰上孵育5分钟,用流式细胞仪进行检测。图34A、34B分别显示GPC3×CD3κλ双特异抗体对HepG2细胞的杀伤和对T细胞的活化。
6.GPC3×CD3κλ双特异抗体对T细胞活化通路的激活
取对数生长期的靶细胞CHO-人GPC3,离心弃上清,重悬至2×105个细胞/ml。50μL/孔接种靶细胞至96孔板,5%CO2,37℃培养过夜。取对数生长期的Jurkat-NFAT-luc报告细胞300g离心5分钟弃上清,重悬至4×106个细胞/ml,取出96孔板,弃上清,25μL/孔接种Jurkat-NFAT-luc报告细胞至96孔板,每孔加入25μL梯度稀释的GPC3×CD3κλ双特异抗体或对照抗体KLH×CD3(起始浓度20μg/ml,3倍稀释,10个梯度),5%CO2,37℃培养6小时。培养结束后,按照ONE-Glo Luciferase Assay System说明书,每孔加入100μL检测试剂,于酶标仪(MD SpectraMax i3x)检测。检测结果见图35,GPC3×CD3κλ双特异抗体以CHO-人GPC3为靶细胞时,可激活T细胞的NFAT信号通路。
7.GPC3×CD3κλ双特异抗体PBMC的非特异激活
取新鲜分离得到的PBMC,加入100μL抗体(10μg/mL),5%CO2 37℃培养24小时。孔内细胞用4%小牛血清洗2次后,加入100μg/mL人IgG孵育10分钟,再加入T细胞活化检测抗体(CD25-BV421,CD4-FITC,CD69-BV605和CD8-APC),冰上孵育20分钟。洗涤弃上清,加入60μL/孔PI,置于冰上孵育5分钟,用流式细胞仪进行检测。阳性对照抗体ERY974参照US20170267783制备。检测结果见图36,在缺乏靶细胞的条件下,GPC3×CD3κλ双特异抗体对外周血T细胞无激活作用,与阴性对照KLH×CD3相当。
8.免疫重建小鼠皮下HepG2移植瘤模型
选择6~8周雌性B-NGD小鼠(百奥赛图生物科技有限公司),皮下接种HepG2细胞(7×106/只),待肿瘤长至60-100mm3时,随机分组,分别设定为高剂量给药组3.0mg/kg、中剂量给药组1.0mg/kg、低剂量给药组0.3mg/kg、阳性对照组ERY974和阴性对照组KLH×CD3 3mg/kg。每只小鼠尾静脉注射1×107PBMC细胞,3天后开始第一次小鼠给药,给药间隔为5天一次,共给药2次。监测小鼠肿瘤体积及小鼠体重,实验结束后断颈处死小鼠,取瘤称重并记录。结果见图37,GPC3×CD3κλ双特异抗体的体内药效呈现剂量相关性,抑瘤率(低剂量到高剂量)分别为:76.7%、81.3%和95.9%。荷瘤小鼠对以上剂量耐受良好,无体重减轻等不良反应。
9.CD3人源化鼠Hepa1-6/人GPC3移植瘤模型
选择6周雌性C57/BL6-hCD3小鼠(百奥赛图生物科技有限公司),将Hepa1-6/人GPC3(6×106/只)接种于小鼠皮下,待肿瘤成瘤体积到达60-100mm3时,随机分组。分别设定为高剂量给药组10mg/mL、中剂量给药组3mg/mL、低剂量给药组1mg/mL、阳性对照组ERY974和阴性对照组KLH×CD3 10mg/kg。给药间隔为3天一次,共给药3次。监测小鼠肿瘤体积及小鼠体重,实验结束后断颈处死小鼠,取瘤称重并记录。结果见图38,GPC3×CD3κλ双特异抗体可显著介导免疫细胞杀死肿瘤细胞,减小荷瘤体积;其10mg/kg剂量与ERY974药效相当。
SEQUENCE LISTING
<110> 康诺亚生物医药科技(成都)有限公司
<120> 一种双特异性抗体及其用途
<130> MTI20179
<160> 95
<170> PatentIn version 3.5
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Gln Ser Ile Lys Gly Asn His Leu Val Lys Val Tyr Asp Tyr Gln Glu
1 5 10 15
Asp Gly Ser Val Leu Leu Thr Cys Asp Ala Glu Ala Lys Asn Ile Thr
20 25 30
Trp Phe Lys Asp Gly Lys Met Ile Gly Phe Leu Thr Glu Asp Lys Lys
35 40 45
Lys Trp Asn Leu Gly Ser Asn Ala Lys Asp Pro Arg Gly Met Tyr Gln
50 55 60
Cys Lys Gly Ser Gln Asn Lys Ser Lys Pro Leu Gln Val Tyr Tyr Arg
65 70 75 80
Met Cys Gln Asn Cys Ile Glu Leu Asn Ala Pro Glu Ala Ala Gly Gly
85 90 95
Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile
100 105 110
Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Ser His Glu
115 120 125
Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His
130 135 140
Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg
145 150 155 160
Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys
165 170 175
Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Ser Ile Glu
180 185 190
Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Cys
195 200 205
Thr Leu Pro Pro Ser Arg Asp Glu Leu Thr Lys Asn Gln Val Ser Leu
210 215 220
Ser Cys Ala Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp
225 230 235 240
Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val
245 250 255
Leu Asp Ser Asp Gly Ser Phe Phe Leu Val Ser Lys Leu Thr Val Asp
260 265 270
Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His
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Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro
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Gly Lys
305
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Gln Asp Gly Asn Glu Glu Met Gly Gly Ile Thr Gln Thr Pro Tyr Lys
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Val Ser Ile Ser Gly Thr Thr Val Ile Leu Thr Cys Pro Gln Tyr Pro
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Gly Ser Glu Ile Leu Trp Gln His Asn Asp Lys Asn Ile Gly Gly Asp
35 40 45
Glu Asp Asp Lys Asn Ile Gly Ser Asp Glu Asp His Leu Ser Leu Lys
50 55 60
Glu Phe Ser Glu Leu Glu Gln Ser Gly Tyr Tyr Val Cys Tyr Pro Arg
65 70 75 80
Gly Ser Lys Pro Glu Asp Ala Asn Phe Tyr Leu Tyr Leu Arg Ala Arg
85 90 95
Val Cys Glu Asn Cys Met Glu Met Asp Ala Pro Glu Ala Ala Gly Gly
100 105 110
Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile
115 120 125
Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Ser His Glu
130 135 140
Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His
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Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg
165 170 175
Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys
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Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Ser Ile Glu
195 200 205
Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr
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Thr Leu Pro Pro Cys Arg Asp Glu Leu Thr Lys Asn Gln Val Ser Leu
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Trp Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp
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Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val
260 265 270
Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp
275 280 285
Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His
290 295 300
Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro
305 310 315 320
Gly Lys Gly Ser Gly Leu Asn Asp Ile Phe Glu Ala Gln Lys Ile Glu
325 330 335
Trp His Glu
<210> 3
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Gln Ser Phe Glu Glu Asn Arg Lys Leu Asn Val Tyr Asn Gln Glu Asp
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Gly Ser Val Leu Leu Thr Cys His Val Lys Asn Thr Asn Ile Thr Trp
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Phe Lys Glu Gly Lys Met Ile Asp Ile Leu Thr Ala His Lys Asn Lys
35 40 45
Trp Asn Leu Gly Ser Asn Thr Lys Asp Pro Arg Gly Val Tyr Gln Cys
50 55 60
Lys Gly Ser Lys Asp Lys Ser Lys Thr Leu Gln Val Tyr Tyr Arg Met
65 70 75 80
Cys Gln Asn Cys Ile Glu Leu Asn Ala Pro Glu Ala Ala Gly Gly Pro
85 90 95
Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser
100 105 110
Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Ser His Glu Asp
115 120 125
Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn
130 135 140
Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg Val
145 150 155 160
Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu
165 170 175
Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Ser Ile Glu Lys
180 185 190
Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Cys Thr
195 200 205
Leu Pro Pro Ser Arg Asp Glu Leu Thr Lys Asn Gln Val Ser Leu Ser
210 215 220
Cys Ala Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu
225 230 235 240
Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu
245 250 255
Asp Ser Asp Gly Ser Phe Phe Leu Val Ser Lys Leu Thr Val Asp Lys
260 265 270
Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His Glu
275 280 285
Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro Gly
290 295 300
Lys
305
<210> 4
<211> 330
<212> PRT
<213> Macaca fascicularis
<400> 4
Gln Asp Gly Asn Glu Glu Met Gly Ser Ile Thr Gln Thr Pro Tyr Gln
1 5 10 15
Val Ser Ile Ser Gly Thr Thr Val Ile Leu Thr Cys Ser Gln His Leu
20 25 30
Gly Ser Glu Ala Gln Trp Gln His Asn Gly Lys Asn Lys Glu Asp Ser
35 40 45
Gly Asp Arg Leu Phe Leu Pro Glu Phe Ser Glu Met Glu Gln Ser Gly
50 55 60
Tyr Tyr Val Cys Tyr Pro Arg Gly Ser Asn Pro Glu Asp Ala Ser His
65 70 75 80
His Leu Tyr Leu Lys Ala Arg Val Cys Glu Asn Cys Met Glu Met Asp
85 90 95
Ala Pro Glu Ala Ala Gly Gly Pro Ser Val Phe Leu Phe Pro Pro Lys
100 105 110
Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val
115 120 125
Val Val Asp Val Ser His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr
130 135 140
Val Asp Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu
145 150 155 160
Gln Tyr Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His
165 170 175
Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys
180 185 190
Ala Leu Pro Ala Ser Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln
195 200 205
Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro Cys Arg Asp Glu Leu
210 215 220
Thr Lys Asn Gln Val Ser Leu Trp Cys Leu Val Lys Gly Phe Tyr Pro
225 230 235 240
Ser Asp Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn
245 250 255
Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu
260 265 270
Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val
275 280 285
Phe Ser Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln
290 295 300
Lys Ser Leu Ser Leu Ser Pro Gly Lys Gly Ser Gly Leu Asn Asp Ile
305 310 315 320
Phe Glu Ala Gln Lys Ile Glu Trp His Glu
325 330
<210> 5
<211> 109
<212> PRT
<213> Homo sapiens
<400> 5
Gln Ala Val Val Thr Gln Glu Pro Ser Leu Thr Val Ser Pro Gly Gly
1 5 10 15
Thr Val Thr Leu Thr Cys Arg Ser Ser Thr Gly Ala Val Thr Thr Ser
20 25 30
Asn Tyr Ala Asn Trp Val Gln Gln Lys Pro Gly Gln Ala Pro Arg Gly
35 40 45
Leu Ile Gly Gly Thr Asn Lys Arg Ala Pro Trp Thr Pro Ala Arg Phe
50 55 60
Ser Gly Ser Leu Leu Gly Gly Lys Ala Ala Leu Thr Leu Ser Gly Ala
65 70 75 80
Gln Pro Glu Asp Glu Ala Glu Tyr Tyr Cys Ala Leu Trp Tyr Ser Asn
85 90 95
Leu Trp Val Phe Gly Gly Gly Thr Lys Leu Thr Val Leu
100 105
<210> 6
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caggctgtgg tcacacaaga gcctagcctg acagtgtctc ctggcggcac agtgaccctg 60
acctgtagat cttctacagg cgccgtgacc accagcaact acgctaattg ggtgcagcag 120
aagcccggcc aggctcctag aggactgatc ggcggaacaa acaagagagc cccttggaca 180
cccgccagat tctctggatc tctgctcggc ggaaaggccg ctctgacact ttctggtgct 240
cagcctgagg acgaggccga gtactattgt gccctgtggt acagcaacct gtgggtgttc 300
ggcggaggca ccaaactgac agttctg 327
<210> 7
<211> 14
<212> PRT
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Arg Ser Ser Thr Gly Ala Val Thr Thr Ser Asn Tyr Ala Asn
1 5 10
<210> 8
<211> 8
<212> PRT
<213> Homo sapiens
<400> 8
Gly Gly Thr Asn Lys Arg Ala Pro
1 5
<210> 9
<211> 9
<212> PRT
<213> Homo sapiens
<400> 9
Ala Leu Trp Tyr Ser Asn Leu Trp Val
1 5
<210> 10
<211> 109
<212> PRT
<213> Homo sapiens
<400> 10
Gln Ala Val Val Thr Gln Glu Pro Ser Leu Thr Val Ser Pro Gly Gly
1 5 10 15
Thr Val Thr Leu Thr Cys Arg Ser Ser Thr Gly Ala Val Thr Thr Ser
20 25 30
Asn Tyr Ala Asn Trp Val Gln Glu Lys Pro Gly Gln Ala Pro Arg Gly
35 40 45
Leu Ile Gly Gly Thr Asn Lys Arg Ala Pro Trp Thr Pro Ala Arg Phe
50 55 60
Ser Gly Ser Leu Leu Gly Gly Lys Ala Ala Leu Thr Leu Ser Gly Ala
65 70 75 80
Gln Pro Glu Asp Glu Ala Glu Tyr Tyr Cys Ala Leu Trp Tyr Ser Asn
85 90 95
Leu Trp Val Phe Gly Gly Gly Thr Lys Leu Thr Val Leu
100 105
<210> 11
<211> 327
<212> DNA
<213> Homo sapiens
<400> 11
caggctgtgg tcacacaaga gcctagcctg acagtgtctc ctggcggcac agtgaccctg 60
acctgtagat cttctacagg cgccgtgacc accagcaact acgctaattg ggtgcaggag 120
aagcccggcc aggctcctag aggactgatc ggcggaacaa acaagagagc cccttggaca 180
cccgccagat tctctggatc tctgctcggc ggaaaggccg ctctgacact ttctggtgct 240
cagcctgagg acgaggccga gtactattgt gccctgtggt acagcaacct gtgggtgttc 300
ggcggaggca ccaaactgac agttctg 327
<210> 12
<211> 109
<212> PRT
<213> Homo sapiens
<400> 12
Glu Ala Val Val Thr Gln Glu Pro Ser Leu Thr Val Ser Pro Gly Gly
1 5 10 15
Thr Val Thr Leu Thr Cys Glu Ser Ser Asp Gly Ala Val Thr Thr Ser
20 25 30
Asn Tyr Ala Asn Trp Val Gln Glu Lys Pro Gly Gln Ala Pro Arg Gly
35 40 45
Leu Ile Gly Gly Thr Asn Lys Glu Ala Pro Trp Thr Pro Ala Arg Phe
50 55 60
Ser Gly Ser Leu Leu Gly Gly Lys Ala Ala Leu Thr Leu Ser Gly Ala
65 70 75 80
Gln Pro Glu Asp Glu Ala Glu Tyr Tyr Cys Ala Leu Trp Tyr Ser Asn
85 90 95
Leu Trp Val Phe Gly Gly Gly Thr Lys Leu Thr Val Leu
100 105
<210> 13
<211> 327
<212> DNA
<213> Homo sapiens
<400> 13
gaggctgtgg tcacacaaga gcctagcctg acagtgtctc ctggcggcac agtgaccctg 60
acctgtgagt cttctgacgg cgccgtgacc accagcaact acgctaattg ggtgcaggag 120
aagcccggcc aggctcctag aggactgatc ggcggaacaa acaaggaggc cccttggaca 180
cccgccagat tctctggatc tctgctcggc ggaaaggccg ctctgacact ttctggtgct 240
cagcctgagg acgaggccga gtactattgt gccctgtggt acagcaacct gtgggtgttc 300
ggcggaggca ccaaactgac agttctg 327
<210> 14
<211> 14
<212> PRT
<213> Homo sapiens
<400> 14
Glu Ser Ser Asp Gly Ala Val Thr Thr Ser Asn Tyr Ala Asn
1 5 10
<210> 15
<211> 8
<212> PRT
<213> Homo sapiens
<400> 15
Gly Gly Thr Asn Lys Glu Ala Pro
1 5
<210> 16
<211> 109
<212> PRT
<213> Homo sapiens
<400> 16
Gln Ala Val Val Thr Gln Glu Pro Ser Leu Thr Val Ser Pro Gly Gly
1 5 10 15
Thr Val Thr Leu Thr Cys Glu Ser Ser Asp Gly Ala Val Thr Thr Ser
20 25 30
Asn Tyr Ala Asn Trp Val Gln Glu Lys Pro Gly Gln Ala Pro Arg Gly
35 40 45
Leu Ile Gly Gly Thr Asn Lys Glu Ala Pro Trp Thr Pro Ala Arg Phe
50 55 60
Ser Gly Ser Leu Leu Gly Gly Lys Ala Ala Leu Thr Leu Ser Gly Ala
65 70 75 80
Gln Pro Glu Asp Glu Ala Glu Tyr Tyr Cys Ala Leu Trp Tyr Ser Asn
85 90 95
Leu Trp Val Phe Gly Gly Gly Thr Lys Leu Thr Val Leu
100 105
<210> 17
<211> 327
<212> DNA
<213> Homo sapiens
<400> 17
caggctgtgg tcacacaaga gcctagcctg acagtgtctc ctggcggcac agtgaccctg 60
acctgtgagt cttctgacgg cgccgtgacc accagcaact acgctaattg ggtgcaggag 120
aagcccggcc aggctcctag aggactgatc ggcggaacaa acaaggaggc cccttggaca 180
cccgccagat tctctggatc tctgctcggc ggaaaggccg ctctgacact ttctggtgct 240
cagcctgagg acgaggccga gtactattgt gccctgtggt acagcaacct gtgggtgttc 300
ggcggaggca ccaaactgac agttctg 327
<210> 18
<211> 109
<212> PRT
<213> Homo sapiens
<400> 18
Gln Ala Val Val Thr Gln Glu Pro Ser Leu Thr Val Ser Pro Gly Gly
1 5 10 15
Thr Val Thr Leu Thr Cys Arg Ser Ser Thr Gly Ala Val Thr Thr Ser
20 25 30
Asn Tyr Ala Asn Trp Val Gln Glu Lys Pro Gly Gln Ala Pro Arg Gly
35 40 45
Leu Ile Gly Gly Thr Asn Lys Arg Ala Pro Trp Thr Pro Ala Arg Phe
50 55 60
Ser Gly Ser Leu Leu Gly Gly Lys Ala Ala Leu Thr Ile Thr Gly Ala
65 70 75 80
Gln Ala Glu Asp Glu Ala Glu Tyr Tyr Cys Val Leu Trp Tyr Ser Asn
85 90 95
Leu Trp Val Phe Gly Gly Gly Thr Lys Leu Thr Val Leu
100 105
<210> 19
<211> 327
<212> DNA
<213> Homo sapiens
<400> 19
caggctgtgg tcacacaaga gcctagcctg acagtgtctc ctggcggcac agtgaccctg 60
acctgtagat cttctacagg cgccgtgacc accagcaact acgctaattg ggtgcaggag 120
aagcccggcc aggctcctag aggactgatc ggcggaacaa acaagagagc cccttggaca 180
cccgccagat tctctggatc tctgctcggc ggaaaggccg ctctgacaat cactggtgct 240
caggctgagg acgaggccga gtactattgt gtgctgtggt acagcaacct gtgggtgttc 300
ggcggaggca ccaaactgac agttctg 327
<210> 20
<211> 8
<212> PRT
<213> Homo sapiens
<400> 20
Tyr Gly Thr Asn Lys Arg Ala Pro
1 5
<210> 21
<211> 9
<212> PRT
<213> Homo sapiens
<400> 21
Val Leu Trp Tyr Ser Asn Leu Trp Val
1 5
<210> 22
<211> 109
<212> PRT
<213> Homo sapiens
<400> 22
Gln Ala Val Val Thr Gln Glu Pro Ser Leu Thr Val Ser Pro Gly Gly
1 5 10 15
Thr Val Thr Leu Thr Cys Arg Ser Ser Thr Gly Ala Val Thr Thr Ser
20 25 30
Asn Tyr Ala Asn Trp Phe Gln Glu Lys Pro Gly Gln Ala Pro Arg Gly
35 40 45
Leu Ile Tyr Gly Thr Asn Lys Arg Ala Pro Trp Thr Pro Ala Arg Phe
50 55 60
Ser Gly Ser Leu Leu Gly Gly Lys Ala Ala Leu Thr Leu Ser Gly Ala
65 70 75 80
Gln Ala Glu Asp Glu Ala Glu Tyr Tyr Cys Val Leu Trp Tyr Ser Asn
85 90 95
Leu Trp Val Phe Gly Gly Gly Thr Lys Leu Thr Val Leu
100 105
<210> 23
<211> 327
<212> DNA
<213> Homo sapiens
<400> 23
caggctgtgg tcacacaaga gcctagcctg acagtgtctc ctggcggcac agtgaccctg 60
acctgtagat cttctacagg cgccgtgacc accagcaact acgctaattg gttccaggag 120
aagcccggcc aggctcctag aggactgatc tacggaacaa acaagagagc cccttggaca 180
cccgccagat tctctggatc tctgctcggc ggaaaggccg ctctgacact ttctggtgct 240
caggctgagg acgaggccga gtactattgt gtcctgtggt acagcaacct gtgggtgttc 300
ggcggaggca ccaaactgac agttctg 327
<210> 24
<211> 125
<212> PRT
<213> Homo sapiens
<400> 24
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly
1 5 10 15
Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Asn Thr Tyr
20 25 30
Ala Met Asn Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val
35 40 45
Ser Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp
50 55 60
Ser Val Lys Asp Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Asn Thr
65 70 75 80
Leu Tyr Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr
85 90 95
Tyr Cys Val Arg His Gly Asn Phe Gly Asn Ser Tyr Val Ser Trp Phe
100 105 110
Ala Tyr Trp Gly Gln Gly Thr Leu Val Thr Val Ser Ser
115 120 125
<210> 25
<211> 375
<212> DNA
<213> Homo sapiens
<400> 25
gaggtgcagc tggttgaatc tggcggagga ctggttcagc ctggcggatc tctgagactg 60
tcttgtgccg ccagcggctt caccttcaac acctacgcta tgaactgggt ccgacaggcc 120
cctggcaaag gactggaatg ggtgtccaga atcaggtcca agtacaacaa ctacgccacc 180
tactacgccg acagcgtgaa ggacagattc accatcagca gggacgacag caagaacacc 240
ctgtacctgc agatgaacag cctgagagcc gaggacaccg ccgtgtacta ctgtgtcaga 300
cacggcaact tcggcaacag ctatgtgtct tggtttgcct actggggcca gggcacactg 360
gtcacagtta gctct 375
<210> 26
<211> 6
<212> PRT
<213> Homo sapiens
<400> 26
Asn Thr Tyr Ala Met Asn
1 5
<210> 27
<211> 18
<212> PRT
<213> Homo sapiens
<400> 27
Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp Ser Val
1 5 10 15
Lys Asp
<210> 28
<211> 14
<212> PRT
<213> Homo sapiens
<400> 28
His Gly Asn Phe Gly Asn Ser Tyr Val Ser Trp Phe Ala Tyr
1 5 10
<210> 29
<211> 125
<212> PRT
<213> Homo sapiens
<400> 29
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly
1 5 10 15
Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Thr Tyr
20 25 30
Ala Met Asn Trp Val Arg Lys Ala Pro Gly Lys Gly Leu Glu Trp Val
35 40 45
Ser Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp
50 55 60
Ser Val Lys Asp Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Asn Thr
65 70 75 80
Leu Tyr Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr
85 90 95
Tyr Cys Val Arg His Gly Asn Phe Gly Asn Ser Tyr Val Ser Trp Phe
100 105 110
Ala Tyr Trp Gly Gln Gly Thr Leu Val Thr Val Ser Ser
115 120 125
<210> 30
<211> 375
<212> DNA
<213> Homo sapiens
<400> 30
gaggtgcagc tggttgaatc tggcggagga ctggttcagc ctggcggatc tctgagactg 60
tcttgtgccg ccagcggctt caccttctcc acctacgcta tgaactgggt ccgaaaggcc 120
cctggcaaag gactggaatg ggtgtccaga atcaggtcca agtacaacaa ctacgccacc 180
tactacgccg acagcgtgaa ggacagattc accatcagca gggacgacag caagaacacc 240
ctgtacctgc agatgaacag cctgagagcc gaggacaccg ccgtgtacta ctgtgtcaga 300
cacggcaact tcggcaacag ctatgtgtct tggtttgcct actggggcca gggcacactg 360
gtcacagtta gctct 375
<210> 31
<211> 6
<212> PRT
<213> Homo sapiens
<400> 31
Ser Thr Tyr Ala Met Asn
1 5
<210> 32
<211> 125
<212> PRT
<213> Homo sapiens
<400> 32
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly
1 5 10 15
Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Thr Tyr
20 25 30
Ala Met Asn Trp Val Arg Lys Ala Pro Gly Lys Gly Leu Glu Trp Val
35 40 45
Ser Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp
50 55 60
Ser Val Lys Asp Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Asn Thr
65 70 75 80
Leu Tyr Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr
85 90 95
Tyr Cys Val Arg His Gly Asn Phe Gly Glu Ser Tyr Val Ser Trp Phe
100 105 110
Ala Tyr Trp Gly Gln Gly Thr Leu Val Thr Val Ser Ser
115 120 125
<210> 33
<211> 375
<212> DNA
<213> Homo sapiens
<400> 33
gaggtgcagc tggttgaatc tggcggagga ctggttcagc ctggcggatc tctgagactg 60
tcttgtgccg ccagcggctt caccttctcc acctacgcta tgaactgggt ccgaaaggcc 120
cctggcaaag gactggaatg ggtgtccaga atcaggtcca agtacaacaa ctacgccacc 180
tactacgccg acagcgtgaa ggacagattc accatcagca gggacgacag caagaacacc 240
ctgtacctgc agatgaacag cctgagagcc gaggacaccg ccgtgtacta ctgtgtcaga 300
cacggcaact tcggcgagag ctatgtgtct tggtttgcct actggggcca gggcacactg 360
gtcacagtta gctct 375
<210> 34
<211> 14
<212> PRT
<213> Homo sapiens
<400> 34
His Gly Asn Phe Gly Glu Ser Tyr Val Ser Trp Phe Ala Tyr
1 5 10
<210> 35
<211> 125
<212> PRT
<213> Homo sapiens
<400> 35
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly
1 5 10 15
Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Thr Tyr
20 25 30
Ala Met Asn Trp Val Arg Lys Ala Pro Gly Lys Gly Leu Glu Trp Val
35 40 45
Ser Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp
50 55 60
Ser Val Lys Asp Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Asn Thr
65 70 75 80
Leu Tyr Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr
85 90 95
Tyr Cys Val Arg His Gly Asn Phe Gly Gln Ser Tyr Val Ser Trp Phe
100 105 110
Ala Tyr Trp Gly Gln Gly Thr Leu Val Thr Val Ser Ser
115 120 125
<210> 36
<211> 375
<212> DNA
<213> Homo sapiens
<400> 36
gaggtgcagc tggttgaatc tggcggagga ctggttcagc ctggcggatc tctgagactg 60
tcttgtgccg ccagcggctt caccttctcc acctacgcta tgaactgggt ccgaaaggcc 120
cctggcaaag gactggaatg ggtgtccaga atcaggtcca agtacaacaa ctacgccacc 180
tactacgccg acagcgtgaa ggacagattc accatcagca gggacgacag caagaacacc 240
ctgtacctgc agatgaacag cctgagagcc gaggacaccg ccgtgtacta ctgtgtcaga 300
cacggcaact tcggccagag ctatgtgtct tggtttgcct actggggcca gggcacactg 360
gtcacagtta gctct 375
<210> 37
<211> 14
<212> PRT
<213> Homo sapiens
<400> 37
His Gly Asn Phe Gly Gln Ser Tyr Val Ser Trp Phe Ala Tyr
1 5 10
<210> 38
<211> 125
<212> PRT
<213> Homo sapiens
<400> 38
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly
1 5 10 15
Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Thr Tyr
20 25 30
Ala Met Asn Trp Val Arg Lys Ala Pro Gly Lys Gly Leu Glu Trp Val
35 40 45
Ser Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp
50 55 60
Ser Val Lys Asp Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Asn Thr
65 70 75 80
Leu Tyr Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr
85 90 95
Tyr Cys Val Arg His Gly Asn Phe Gly Asp Ser Tyr Val Ser Trp Phe
100 105 110
Ala Tyr Trp Gly Gln Gly Thr Leu Val Thr Val Ser Ser
115 120 125
<210> 39
<211> 375
<212> DNA
<213> Homo sapiens
<400> 39
gaggtgcagc tggttgaatc tggcggagga ctggttcagc ctggcggatc tctgagactg 60
tcttgtgccg ccagcggctt caccttctcc acctacgcta tgaactgggt ccgaaaggcc 120
cctggcaaag gactggaatg ggtgtccaga atcaggtcca agtacaacaa ctacgccacc 180
tactacgccg acagcgtgaa ggacagattc accatcagca gggacgacag caagaacacc 240
ctgtacctgc agatgaacag cctgagagcc gaggacaccg ccgtgtacta ctgtgtcaga 300
cacggcaact tcggcgacag ctatgtgtct tggtttgcct actggggcca gggcacactg 360
gtcacagtta gctct 375
<210> 40
<211> 14
<212> PRT
<213> Homo sapiens
<400> 40
His Gly Asn Phe Gly Asp Ser Tyr Val Ser Trp Phe Ala Tyr
1 5 10
<210> 41
<211> 125
<212> PRT
<213> Homo sapiens
<400> 41
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly
1 5 10 15
Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Thr Tyr
20 25 30
Ala Met Asn Trp Val Arg Lys Ala Pro Gly Lys Gly Leu Glu Trp Val
35 40 45
Ser Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp
50 55 60
Ser Val Lys Asp Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Asn Thr
65 70 75 80
Leu Tyr Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr
85 90 95
Tyr Cys Val Arg His Gly Asn Phe Gly Thr Ser Tyr Val Ser Trp Phe
100 105 110
Ala Tyr Trp Gly Gln Gly Thr Leu Val Thr Val Ser Ser
115 120 125
<210> 42
<211> 375
<212> DNA
<213> Homo sapiens
<400> 42
gaggtgcagc tggttgaatc tggcggagga ctggttcagc ctggcggatc tctgagactg 60
tcttgtgccg ccagcggctt caccttctcc acctacgcta tgaactgggt ccgaaaggcc 120
cctggcaaag gactggaatg ggtgtccaga atcaggtcca agtacaacaa ctacgccacc 180
tactacgccg acagcgtgaa ggacagattc accatcagca gggacgacag caagaacacc 240
ctgtacctgc agatgaacag cctgagagcc gaggacaccg ccgtgtacta ctgtgtcaga 300
cacggcaact tcggcaccag ctatgtgtct tggtttgcct actggggcca gggcacactg 360
gtcacagtta gctct 375
<210> 43
<211> 14
<212> PRT
<213> Homo sapiens
<400> 43
His Gly Asn Phe Gly Thr Ser Tyr Val Ser Trp Phe Ala Tyr
1 5 10
<210> 44
<211> 125
<212> PRT
<213> Homo sapiens
<400> 44
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly
1 5 10 15
Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Asp Tyr
20 25 30
Ala Met Asn Trp Val Arg Lys Ala Pro Gly Lys Gly Leu Glu Trp Val
35 40 45
Ser Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp
50 55 60
Ser Val Glu Asp Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Asn Thr
65 70 75 80
Leu Tyr Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr
85 90 95
Tyr Cys Val Arg His Gly Asn Phe Gly Asn Ser Tyr Val Ser Trp Phe
100 105 110
Ala Tyr Trp Gly Gln Gly Thr Leu Val Thr Val Ser Ser
115 120 125
<210> 45
<211> 375
<212> DNA
<213> Homo sapiens
<400> 45
gaggtgcagc tggttgaatc tggcggagga ctggttcagc ctggcggatc tctgagactg 60
tcttgtgccg ccagcggctt caccttctcc gactacgcta tgaactgggt ccgaaaggcc 120
cctggcaaag gactggaatg ggtgtccaga atcaggtcca agtacaacaa ctacgccacc 180
tactacgccg acagcgtgga ggacagattc accatcagca gggacgacag caagaacacc 240
ctgtacctgc agatgaacag cctgagagcc gaggacaccg ccgtgtacta ctgtgtcaga 300
cacggcaact tcggcaacag ctatgtgtct tggtttgcct actggggcca gggcacactg 360
gtcacagtta gctct 375
<210> 46
<211> 6
<212> PRT
<213> Homo sapiens
<400> 46
Ser Asp Tyr Ala Met Asn
1 5
<210> 47
<211> 18
<212> PRT
<213> Homo sapiens
<400> 47
Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp Ser Val
1 5 10 15
Glu Asp
<210> 48
<211> 125
<212> PRT
<213> Homo sapiens
<400> 48
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly
1 5 10 15
Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Asn Thr Tyr
20 25 30
Ala Met Asn Trp Val Arg Lys Ala Pro Gly Lys Gly Leu Glu Trp Val
35 40 45
Gly Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp
50 55 60
Ser Val Lys Asp Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Asn Ser
65 70 75 80
Leu Tyr Leu Gln Met Asn Ser Leu Lys Thr Glu Asp Thr Ala Val Tyr
85 90 95
Tyr Cys Ala Arg His Gly Asn Phe Gly Asn Ser Tyr Val Ser Trp Phe
100 105 110
Ala Tyr Trp Gly Gln Gly Thr Leu Val Thr Val Ser Ser
115 120 125
<210> 49
<211> 375
<212> DNA
<213> Homo sapiens
<400> 49
gaggtgcagc tggttgaatc tggcggagga ctggttcagc ctggcggatc tctgagactg 60
tcttgtgccg ccagcggctt caccttcaac acctacgcta tgaactgggt ccgaaaggcc 120
cctggcaaag gactggaatg ggtgggaaga atcaggtcca agtacaacaa ctacgccacc 180
tactacgccg acagcgtgaa ggacagattc accatcagca gggacgacag caagaacagc 240
ctgtacctgc agatgaacag cctgaaaacc gaggacaccg ccgtgtacta ctgtgccaga 300
cacggcaact tcggcaacag ctatgtgtct tggtttgcct actggggcca gggcacactg 360
gtcacagtta gctct 375
<210> 50
<211> 125
<212> PRT
<213> Homo sapiens
<400> 50
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly
1 5 10 15
Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Asn Thr Tyr
20 25 30
Ala Met Asn Trp Val Arg Lys Ala Pro Gly Lys Gly Leu Glu Trp Val
35 40 45
Gly Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp
50 55 60
Ser Val Lys Asp Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Asn Ser
65 70 75 80
Leu Tyr Leu Gln Met Asn Ser Leu Lys Thr Glu Asp Thr Ala Val Tyr
85 90 95
Tyr Cys Val Arg His Gly Asn Phe Gly Asn Ser Tyr Val Ser Trp Phe
100 105 110
Ala Tyr Trp Gly Gln Gly Thr Leu Val Thr Val Ser Ser
115 120 125
<210> 51
<211> 375
<212> DNA
<213> Homo sapiens
<400> 51
gaggtgcagc tggttgaatc tggcggagga ctggttcagc ctggcggatc tctgagactg 60
tcttgtgccg ccagcggctt caccttcaac acctacgcta tgaactgggt ccgaaaggcc 120
cctggcaaag gactggaatg ggtgggaaga atcaggtcca agtacaacaa ctacgccacc 180
tactacgccg acagcgtgaa ggacagattc accatcagca gggacgacag caagaacagc 240
ctgtacctgc agatgaacag cctgaaaacc gaggacaccg ccgtgtacta ctgtgtcaga 300
cacggcaact tcggcaacag ctatgtgtct tggtttgcct actggggcca gggcacactg 360
gtcacagtta gctct 375
<210> 52
<211> 125
<212> PRT
<213> Homo sapiens
<400> 52
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly
1 5 10 15
Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Asn Thr Tyr
20 25 30
Ala Met Asn Trp Val Arg Lys Ala Pro Gly Lys Gly Leu Glu Trp Val
35 40 45
Ala Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp
50 55 60
Ser Val Lys Asp Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Asn Ser
65 70 75 80
Leu Tyr Leu Gln Met Asn Ser Leu Lys Thr Glu Asp Thr Ala Val Tyr
85 90 95
Tyr Cys Val Arg His Gly Asn Phe Gly Asn Ser Tyr Val Ser Trp Phe
100 105 110
Ala Tyr Trp Gly Gln Gly Thr Leu Val Thr Val Ser Ser
115 120 125
<210> 53
<211> 375
<212> DNA
<213> Homo sapiens
<400> 53
gaggtgcagc tggttgaatc tggcggagga ctggttcagc ctggcggatc tctgagactg 60
tcttgtgccg ccagcggctt caccttcaac acctacgcta tgaactgggt ccgaaaggcc 120
cctggcaaag gactggaatg ggtggccaga atcaggtcca agtacaacaa ctacgccacc 180
tactacgccg acagcgtgaa ggacagattc accatcagca gggacgacag caagaacagc 240
ctgtacctgc agatgaacag cctgaaaacc gaggacaccg ccgtgtacta ctgtgtcaga 300
cacggcaact tcggcaacag ctatgtgtct tggtttgcct actggggcca gggcacactg 360
gtcacagtta gctct 375
<210> 54
<211> 214
<212> PRT
<213> Homo sapiens
<400> 54
Glu Ile Val Leu Thr Gln Ser Pro Gly Thr Leu Ser Leu Ser Pro Gly
1 5 10 15
Glu Arg Ala Thr Leu Ser Cys Arg Ala Ser Gln Ser Val Ser Ser Tyr
20 25 30
Leu Ala Trp Tyr Gln Gln Lys Pro Gly Gln Ala Pro Arg Leu Leu Ile
35 40 45
Tyr Asp Ala Ser Asn Arg Ala Thr Gly Ile Pro Asp Arg Phe Ser Gly
50 55 60
Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Arg Leu Glu Pro
65 70 75 80
Glu Asp Phe Ala Val Tyr Tyr Cys Gln Gln Arg Ser Asn Trp Pro Ile
85 90 95
Thr Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys Arg Thr Val Ala Ala
100 105 110
Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly
115 120 125
Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala
130 135 140
Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln
145 150 155 160
Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser
165 170 175
Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr
180 185 190
Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser
195 200 205
Phe Asn Arg Gly Glu Cys
210
<210> 55
<211> 642
<212> DNA
<213> Homo sapiens
<400> 55
gagatcgtgc tgacacagag ccctggcaca ctgtcactgt ctccaggcga gagagccaca 60
ctgagctgta gagccagcca gagcgtgtcc tcttacctgg cctggtatca gcagaagcct 120
ggacaggctc ccagactgct gatctacgac gccagcaaca gagccacagg catccccgat 180
agattcagcg gctctggctc tggcaccgac ttcaccctga caatcagcag actggaaccc 240
gaggacttcg ccgtgtacta ctgccagcag agaagcaact ggcccatcac attcggccag 300
ggcaccaagc tggaaatcaa gcgaactgtg gctgcaccat ctgtcttcat cttcccgcca 360
tctgatgagc agttgaaatc tggaactgcc tctgttgtgt gcctgctgaa taacttctat 420
cccagagagg ccaaagtaca gtggaaggtg gataacgccc tccaatcggg taactcccag 480
gagagtgtca cagagcagga cagcaaggac agcacctaca gcctcagcag caccctgacg 540
ctgagcaaag cagactacga gaaacacaaa gtctacgcct gcgaagtcac ccatcagggc 600
ctgagctcgc ccgtcacaaa gagcttcaac aggggagagt gt 642
<210> 56
<211> 449
<212> PRT
<213> Homo sapiens
<400> 56
Glu Val Gln Leu Leu Glu Ser Gly Gly Gly Val Val Gln Pro Gly Gly
1 5 10 15
Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Asn Asp Tyr
20 25 30
Ala Met His Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val
35 40 45
Ser Thr Ile Ser Trp Asn Ser Gly Ser Ile Gly Tyr Ala Asp Ser Val
50 55 60
Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ser Lys Asn Thr Leu Tyr
65 70 75 80
Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr Tyr Cys
85 90 95
Ala Lys Asp Ile Gln Tyr Gly Asn Tyr Tyr Tyr Gly Met Asp Tyr Trp
100 105 110
Gly Gln Gly Thr Leu Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro
115 120 125
Ser Val Phe Pro Leu Ala Pro Cys Ser Arg Ser Thr Ser Glu Ser Thr
130 135 140
Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr
145 150 155 160
Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro
165 170 175
Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr
180 185 190
Val Pro Ser Ser Ser Leu Gly Thr Lys Thr Tyr Thr Cys Asn Val Asp
195 200 205
His Lys Pro Ser Asn Thr Lys Val Asp Lys Arg Val Glu Ser Lys Tyr
210 215 220
Gly Pro Pro Cys Pro Pro Cys Pro Ala Pro Glu Phe Glu Gly Gly Pro
225 230 235 240
Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser
245 250 255
Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Ser Gln Glu Asp
260 265 270
Pro Glu Val Gln Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn
275 280 285
Ala Lys Thr Lys Pro Arg Glu Glu Gln Phe Asn Ser Thr Tyr Arg Val
290 295 300
Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu
305 310 315 320
Tyr Lys Cys Lys Val Ser Asn Lys Gly Leu Ala Ser Ser Ile Glu Lys
325 330 335
Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Cys Thr
340 345 350
Leu Pro Pro Ser Gln Glu Glu Met Thr Lys Asn Gln Val Ser Leu Ser
355 360 365
Cys Ala Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu
370 375 380
Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu
385 390 395 400
Asp Ser Asp Gly Ser Phe Phe Leu Val Ser Lys Leu Thr Val Asp Lys
405 410 415
Ser Arg Trp Gln Glu Gly Asn Val Phe Ser Cys Ser Val Met His Glu
420 425 430
Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Leu Gly
435 440 445
Lys
<210> 57
<211> 1347
<212> DNA
<213> Homo sapiens
<400> 57
gaagtgcagc tgctggaatc tggtggcgga gttgttcagc ctggcggctc tctgagactg 60
tcttgtgctg ccagcggctt caccttcaac gactacgcta tgcactgggt ccgacaggcc 120
cctggcaaag gacttgaatg ggtgtccacc atcagctgga acagcggctc tatcggctac 180
gccgattccg tgaagggcag attcaccatc tccagagaca acagcaagaa caccctgtac 240
ctgcagatga acagcctgag agccgaggac accgccgtgt actactgtgc caaggacatc 300
cagtacggca actactacta cggcatggac tactggggcc agggaacact ggttaccgtt 360
agctctgcta gcaccaaggg ccccagcgtg ttccccctgg ccccttgcag cagaagcacc 420
agcgagagca cagccgccct gggctgcctg gtgaaggact acttccccga gcccgtgacc 480
gtgtcctgga acagcggcgc tctgaccagc ggcgtgcata ccttccccgc cgtgctccag 540
agcagcggac tgtactccct gagcagcgtg gtgaccgtgc cttccagcag cctgggcacc 600
aagacctaca cctgcaacgt ggaccacaag cccagcaaca ccaaggtgga caagagagtg 660
gagagcaagt acggccctcc ctgcccccct tgccctgccc ccgagttcga gggcggacct 720
agcgtgttcc tgttcccccc caagcccaag gacaccctga tgatcagcag aacccccgag 780
gtgacctgcg tggtggtgga cgtgtcccag gaggaccccg aggtccagtt taattggtac 840
gtggacggcg tggaagtgca taacgccaag accaagccca gagaggagca gttcaacagc 900
acctacagag tggtgtccgt gctgaccgtg ctgcaccagg actggctgaa cggcaaggaa 960
tacaagtgca aggtctccaa caagggcctg gccagcagca tcgagaagac catcagcaag 1020
gccaagggcc agccacggga gccccaggtc tgcaccctgc cacctagcca agaggagatg 1080
accaagaacc aggtgtccct gagctgtgcc gtgaaaggct tctatcccag cgatatcgcc 1140
gtggagtggg agagcaacgg ccagcccgag aacaactaca agaccacccc ccctgtgctg 1200
gacagcgacg gcagcttctt cctggtttcc aagctgaccg tggacaagtc cagatggcag 1260
gagggcaacg tcttcagctg ctccgtgatg cacgaggccc tgcacaacca ctacacccag 1320
aagtccctga gcctgagcct gggcaag 1347
<210> 58
<211> 215
<212> PRT
<213> Homo sapiens
<400> 58
Gln Ala Val Val Thr Gln Glu Pro Ser Leu Thr Val Ser Pro Gly Gly
1 5 10 15
Thr Val Thr Leu Thr Cys Arg Ser Ser Thr Gly Ala Val Thr Thr Ser
20 25 30
Asn Tyr Ala Asn Trp Val Gln Gln Lys Pro Gly Gln Ala Pro Arg Gly
35 40 45
Leu Ile Gly Gly Thr Asn Lys Arg Ala Pro Trp Thr Pro Ala Arg Phe
50 55 60
Ser Gly Ser Leu Leu Gly Gly Lys Ala Ala Leu Thr Ile Thr Gly Ala
65 70 75 80
Gln Ala Glu Asp Glu Ala Glu Tyr Tyr Cys Val Leu Trp Tyr Ser Asn
85 90 95
Leu Trp Val Phe Gly Gly Gly Thr Lys Leu Thr Val Leu Gly Gln Pro
100 105 110
Lys Ala Ala Pro Ser Val Thr Leu Phe Pro Pro Ser Ser Glu Glu Leu
115 120 125
Gln Ala Asn Lys Ala Thr Leu Val Cys Leu Ile Ser Asp Phe Tyr Pro
130 135 140
Gly Ala Val Thr Val Ala Trp Lys Ala Asp Ser Ser Pro Val Lys Ala
145 150 155 160
Gly Val Glu Thr Thr Thr Pro Ser Lys Gln Ser Asn Asn Lys Tyr Ala
165 170 175
Ala Ser Ser Tyr Leu Ser Leu Thr Pro Glu Gln Trp Lys Ser His Arg
180 185 190
Ser Tyr Ser Cys Gln Val Thr His Glu Gly Ser Thr Val Glu Lys Thr
195 200 205
Val Ala Pro Thr Glu Cys Ser
210 215
<210> 59
<211> 645
<212> DNA
<213> Homo sapiens
<400> 59
caggctgtgg tcacacaaga gcctagcctg acagtgtctc ctggcggcac agtgaccctg 60
acctgtagat cttctacagg cgccgtgacc accagcaact acgctaattg ggtgcagcag 120
aagcccggcc aggctcctag aggactgatc ggcggaacaa acaagagagc cccttggaca 180
cccgccagat tctctggatc tctgctcggc ggaaaggccg ctctgacaat cactggtgct 240
caggctgagg acgaggccga gtactattgt gtgctgtggt acagcaacct gtgggtgttc 300
ggcggaggca ccaaactgac agttctgggt cagcccaagg cggcgccctc ggtcactctg 360
ttcccgccct cctctgagga gcttcaagcc aacaaggcca cactggtgtg tctcataagt 420
gacttctatc cgggagccgt gacagtggcc tggaaggcag atagcagccc cgtcaaggcg 480
ggagtggaga ccaccacacc ctccaaacaa agcaacaaca agtacgcggc cagcagctac 540
ctgagcctga cgcctgagca gtggaagtcc cacagaagct acagctgcca ggtcacgcat 600
gaagggagca ccgtggagaa gacagtggcc cctacagaat gttca 645
<210> 60
<211> 452
<212> PRT
<213> Homo sapiens
<400> 60
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly
1 5 10 15
Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Asn Thr Tyr
20 25 30
Ala Met Asn Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val
35 40 45
Gly Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp
50 55 60
Ser Val Lys Asp Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Asn Ser
65 70 75 80
Leu Tyr Leu Gln Met Asn Ser Leu Lys Thr Glu Asp Thr Ala Val Tyr
85 90 95
Tyr Cys Val Arg His Gly Asn Phe Gly Asn Ser Tyr Val Ser Trp Phe
100 105 110
Ala Tyr Trp Gly Gln Gly Thr Leu Val Thr Val Ser Ser Ala Ser Thr
115 120 125
Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Cys Ser Arg Ser Thr Ser
130 135 140
Glu Ser Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu
145 150 155 160
Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His
165 170 175
Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser
180 185 190
Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Lys Thr Tyr Thr Cys
195 200 205
Asn Val Asp His Lys Pro Ser Asn Thr Lys Val Asp Lys Arg Val Glu
210 215 220
Ser Lys Tyr Gly Pro Pro Cys Pro Pro Cys Pro Ala Pro Glu Phe Glu
225 230 235 240
Gly Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu
245 250 255
Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Ser
260 265 270
Gln Glu Asp Pro Glu Val Gln Phe Asn Trp Tyr Val Asp Gly Val Glu
275 280 285
Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Phe Asn Ser Thr
290 295 300
Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn
305 310 315 320
Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Gly Leu Ala Ser Ser
325 330 335
Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln
340 345 350
Val Tyr Thr Leu Pro Pro Cys Gln Glu Glu Met Thr Lys Asn Gln Val
355 360 365
Ser Leu Trp Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val
370 375 380
Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro
385 390 395 400
Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr
405 410 415
Val Asp Lys Ser Arg Trp Gln Glu Gly Asn Val Phe Ser Cys Ser Val
420 425 430
Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu
435 440 445
Ser Leu Gly Lys
450
<210> 61
<211> 1356
<212> DNA
<213> Homo sapiens
<400> 61
gaggtgcagc tggttgaatc tggcggagga ctggttcagc ctggcggatc tctgagactg 60
tcttgtgccg ccagcggctt caccttcaac acctacgcta tgaactgggt ccgacaggcc 120
cctggcaaag gactggaatg ggtgggaaga atcaggtcca agtacaacaa ctacgccacc 180
tactacgccg acagcgtgaa ggacagattc accatcagca gggacgacag caagaacagc 240
ctgtacctgc agatgaacag cctgaaaacc gaggacaccg ccgtgtacta ctgtgtcaga 300
cacggcaact tcggcaacag ctatgtgtct tggtttgcct actggggcca gggcacactg 360
gtcacagtta gctctgctag caccaagggc cccagcgtgt tccccctggc cccttgcagc 420
agaagcacca gcgagagcac agccgccctg ggctgcctgg tgaaggacta cttccccgag 480
cccgtgaccg tgtcctggaa cagcggcgct ctgaccagcg gcgtgcatac cttccccgcc 540
gtgctccaga gcagcggact gtactccctg agcagcgtgg tgaccgtgcc ttccagcagc 600
ctgggcacca agacctacac ctgcaacgtg gaccacaagc ccagcaacac caaggtggac 660
aagagagtgg agagcaagta cggccctccc tgcccccctt gccctgcccc cgagttcgag 720
ggcggaccta gcgtgttcct gttccccccc aagcccaagg acaccctgat gatcagcaga 780
acccccgagg tgacctgcgt ggtggtggac gtgtcccagg aggaccccga ggtccagttt 840
aattggtacg tggacggcgt ggaagtgcat aacgccaaga ccaagcccag agaggagcag 900
ttcaacagca cctacagagt ggtgtccgtg ctgaccgtgc tgcaccagga ctggctgaac 960
ggcaaggaat acaagtgcaa ggtctccaac aagggcctgg ccagcagcat cgagaagacc 1020
atcagcaagg ccaagggcca gccacgggag ccccaggtct acaccctgcc accttgtcaa 1080
gaggagatga ccaagaacca ggtgtccctg tggtgtctgg tgaaaggctt ctatcccagc 1140
gatatcgccg tggagtggga gagcaacggc cagcccgaga acaactacaa gaccaccccc 1200
cctgtgctgg acagcgacgg cagcttcttc ctgtactcca agctgaccgt ggacaagtcc 1260
agatggcagg agggcaacgt cttcagctgc tccgtgatgc acgaggccct gcacaaccac 1320
tacacccaga agtccctgag cctgagcctg ggcaag 1356
<210> 62
<211> 214
<212> PRT
<213> Homo sapiens
<400> 62
Glu Ile Val Leu Thr Gln Ser Pro Gly Thr Leu Ser Leu Ser Pro Gly
1 5 10 15
Glu Arg Ala Thr Leu Ser Cys Arg Ala Ser Gln Ser Val Ser Ser Tyr
20 25 30
Leu Ala Trp Tyr Gln Lys Lys Pro Gly Gln Ala Pro Arg Leu Leu Ile
35 40 45
Tyr Asp Ala Ser Asn Arg Ala Thr Gly Ile Pro Asp Arg Phe Ser Gly
50 55 60
Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Arg Leu Glu Pro
65 70 75 80
Glu Asp Phe Ala Val Tyr Tyr Cys Gln Gln Arg Ser Asn Trp Pro Ile
85 90 95
Thr Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys Arg Thr Val Ala Ala
100 105 110
Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly
115 120 125
Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala
130 135 140
Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln
145 150 155 160
Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser
165 170 175
Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr
180 185 190
Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser
195 200 205
Phe Asn Arg Gly Glu Cys
210
<210> 63
<211> 642
<212> DNA
<213> Homo sapiens
<400> 63
gagatcgtgc tgacacagag ccctggcaca ctgtcactgt ctccaggcga gagagccaca 60
ctgagctgta gagccagcca gagcgtgtcc tcttacctgg cctggtatca gaagaagcct 120
ggacaggctc ccagactgct gatctacgac gccagcaaca gagccacagg catccccgat 180
agattcagcg gctctggctc tggcaccgac ttcaccctga caatcagcag actggaaccc 240
gaggacttcg ccgtgtacta ctgccagcag agaagcaact ggcccatcac attcggccag 300
ggcaccaagc tggaaatcaa gcgaactgtg gctgcaccat ctgtcttcat cttcccgcca 360
tctgatgagc agttgaaatc tggaactgcc tctgttgtgt gcctgctgaa taacttctat 420
cccagagagg ccaaagtaca gtggaaggtg gataacgccc tccaatcggg taactcccag 480
gagagtgtca cagagcagga cagcaaggac agcacctaca gcctcagcag caccctgacg 540
ctgagcaaag cagactacga gaaacacaaa gtctacgcct gcgaagtcac ccatcagggc 600
ctgagctcgc ccgtcacaaa gagcttcaac aggggagagt gt 642
<210> 64
<211> 449
<212> PRT
<213> Homo sapiens
<400> 64
Glu Val Gln Leu Leu Glu Ser Gly Gly Gly Val Val Gln Pro Gly Gly
1 5 10 15
Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Asn Asp Tyr
20 25 30
Ala Met His Trp Val Arg Glu Ala Pro Gly Lys Gly Leu Glu Trp Val
35 40 45
Ser Thr Ile Ser Trp Asn Ser Gly Ser Ile Gly Tyr Ala Asp Ser Val
50 55 60
Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ser Lys Asn Thr Leu Tyr
65 70 75 80
Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr Tyr Cys
85 90 95
Ala Lys Asp Ile Gln Tyr Gly Asn Tyr Tyr Tyr Gly Met Asp Tyr Trp
100 105 110
Gly Gln Gly Thr Leu Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro
115 120 125
Ser Val Phe Pro Leu Ala Pro Cys Ser Arg Ser Thr Ser Glu Ser Thr
130 135 140
Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr
145 150 155 160
Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro
165 170 175
Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr
180 185 190
Val Pro Ser Ser Ser Leu Gly Thr Lys Thr Tyr Thr Cys Asn Val Asp
195 200 205
His Lys Pro Ser Asn Thr Lys Val Asp Lys Arg Val Glu Ser Lys Tyr
210 215 220
Gly Pro Pro Cys Pro Pro Cys Pro Ala Pro Glu Phe Glu Gly Gly Pro
225 230 235 240
Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser
245 250 255
Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Ser Gln Glu Asp
260 265 270
Pro Glu Val Gln Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn
275 280 285
Ala Lys Thr Lys Pro Arg Glu Glu Gln Phe Asn Ser Thr Tyr Arg Val
290 295 300
Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu
305 310 315 320
Tyr Lys Cys Lys Val Ser Asn Lys Gly Leu Ala Ser Ser Ile Glu Lys
325 330 335
Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Cys Thr
340 345 350
Leu Pro Pro Ser Gln Glu Glu Met Thr Lys Asn Gln Val Ser Leu Ser
355 360 365
Cys Ala Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu
370 375 380
Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu
385 390 395 400
Asp Ser Asp Gly Ser Phe Phe Leu Val Ser Lys Leu Thr Val Asp Lys
405 410 415
Ser Arg Trp Gln Glu Gly Asn Val Phe Ser Cys Ser Val Met His Glu
420 425 430
Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Leu Gly
435 440 445
Lys
<210> 65
<211> 1347
<212> DNA
<213> Homo sapiens
<400> 65
gaagtgcagc tgctggaatc tggtggcgga gttgttcagc ctggcggctc tctgagactg 60
tcttgtgctg ccagcggctt caccttcaac gactacgcta tgcactgggt ccgagaggcc 120
cctggcaaag gacttgaatg ggtgtccacc atcagctgga acagcggctc tatcggctac 180
gccgattccg tgaagggcag attcaccatc tccagagaca acagcaagaa caccctgtac 240
ctgcagatga acagcctgag agccgaggac accgccgtgt actactgtgc caaggacatc 300
cagtacggca actactacta cggcatggac tactggggcc agggaacact ggttaccgtt 360
agctctgcta gcaccaaggg ccccagcgtg ttccccctgg ccccttgcag cagaagcacc 420
agcgagagca cagccgccct gggctgcctg gtgaaggact acttccccga gcccgtgacc 480
gtgtcctgga acagcggcgc tctgaccagc ggcgtgcata ccttccccgc cgtgctccag 540
agcagcggac tgtactccct gagcagcgtg gtgaccgtgc cttccagcag cctgggcacc 600
aagacctaca cctgcaacgt ggaccacaag cccagcaaca ccaaggtgga caagagagtg 660
gagagcaagt acggccctcc ctgcccccct tgccctgccc ccgagttcga gggcggacct 720
agcgtgttcc tgttcccccc caagcccaag gacaccctga tgatcagcag aacccccgag 780
gtgacctgcg tggtggtgga cgtgtcccag gaggaccccg aggtccagtt taattggtac 840
gtggacggcg tggaagtgca taacgccaag accaagccca gagaggagca gttcaacagc 900
acctacagag tggtgtccgt gctgaccgtg ctgcaccagg actggctgaa cggcaaggaa 960
tacaagtgca aggtctccaa caagggcctg gccagcagca tcgagaagac catcagcaag 1020
gccaagggcc agccacggga gccccaggtc tgcaccctgc cacctagcca agaggagatg 1080
accaagaacc aggtgtccct gagctgtgcc gtgaaaggct tctatcccag cgatatcgcc 1140
gtggagtggg agagcaacgg ccagcccgag aacaactaca agaccacccc ccctgtgctg 1200
gacagcgacg gcagcttctt cctggtttcc aagctgaccg tggacaagtc cagatggcag 1260
gagggcaacg tcttcagctg ctccgtgatg cacgaggccc tgcacaacca ctacacccag 1320
aagtccctga gcctgagcct gggcaag 1347
<210> 66
<211> 215
<212> PRT
<213> Homo sapiens
<400> 66
Gln Ala Val Val Thr Gln Glu Pro Ser Leu Thr Val Ser Pro Gly Gly
1 5 10 15
Thr Val Thr Leu Thr Cys Arg Ser Ser Thr Gly Ala Val Thr Thr Ser
20 25 30
Asn Tyr Ala Asn Trp Val Gln Glu Lys Pro Gly Gln Ala Pro Arg Gly
35 40 45
Leu Ile Gly Gly Thr Asn Lys Arg Ala Pro Trp Thr Pro Ala Arg Phe
50 55 60
Ser Gly Ser Leu Leu Gly Gly Lys Ala Ala Leu Thr Ile Thr Gly Ala
65 70 75 80
Gln Ala Glu Asp Glu Ala Glu Tyr Tyr Cys Val Leu Trp Tyr Ser Asn
85 90 95
Leu Trp Val Phe Gly Gly Gly Thr Lys Leu Thr Val Leu Gly Gln Pro
100 105 110
Lys Ala Ala Pro Ser Val Thr Leu Phe Pro Pro Ser Ser Glu Glu Leu
115 120 125
Gln Ala Asn Lys Ala Thr Leu Val Cys Leu Ile Ser Asp Phe Tyr Pro
130 135 140
Gly Ala Val Thr Val Ala Trp Lys Ala Asp Ser Ser Pro Val Lys Ala
145 150 155 160
Gly Val Glu Thr Thr Thr Pro Ser Lys Gln Ser Asn Asn Lys Tyr Ala
165 170 175
Ala Ser Ser Tyr Leu Ser Leu Thr Pro Glu Gln Trp Lys Ser His Arg
180 185 190
Ser Tyr Ser Cys Gln Val Thr His Glu Gly Ser Thr Val Glu Lys Thr
195 200 205
Val Ala Pro Thr Glu Cys Ser
210 215
<210> 67
<211> 645
<212> DNA
<213> Homo sapiens
<400> 67
caggctgtgg tcacacaaga gcctagcctg acagtgtctc ctggcggcac agtgaccctg 60
acctgtagat cttctacagg cgccgtgacc accagcaact acgctaattg ggtgcaggag 120
aagcccggcc aggctcctag aggactgatc ggcggaacaa acaagagagc cccttggaca 180
cccgccagat tctctggatc tctgctcggc ggaaaggccg ctctgacaat cactggtgct 240
caggctgagg acgaggccga gtactattgt gtgctgtggt acagcaacct gtgggtgttc 300
ggcggaggca ccaaactgac agttctgggt cagcccaagg cggcgccctc ggtcactctg 360
ttcccgccct cctctgagga gcttcaagcc aacaaggcca cactggtgtg tctcataagt 420
gacttctatc cgggagccgt gacagtggcc tggaaggcag atagcagccc cgtcaaggcg 480
ggagtggaga ccaccacacc ctccaaacaa agcaacaaca agtacgcggc cagcagctac 540
ctgagcctga cgcctgagca gtggaagtcc cacagaagct acagctgcca ggtcacgcat 600
gaagggagca ccgtggagaa gacagtggcc cctacagaat gttca 645
<210> 68
<211> 452
<212> PRT
<213> Homo sapiens
<400> 68
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly
1 5 10 15
Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Asn Thr Tyr
20 25 30
Ala Met Asn Trp Val Arg Lys Ala Pro Gly Lys Gly Leu Glu Trp Val
35 40 45
Gly Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp
50 55 60
Ser Val Lys Asp Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Asn Ser
65 70 75 80
Leu Tyr Leu Gln Met Asn Ser Leu Lys Thr Glu Asp Thr Ala Val Tyr
85 90 95
Tyr Cys Val Arg His Gly Asn Phe Gly Asn Ser Tyr Val Ser Trp Phe
100 105 110
Ala Tyr Trp Gly Gln Gly Thr Leu Val Thr Val Ser Ser Ala Ser Thr
115 120 125
Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Cys Ser Arg Ser Thr Ser
130 135 140
Glu Ser Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu
145 150 155 160
Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His
165 170 175
Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser
180 185 190
Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Lys Thr Tyr Thr Cys
195 200 205
Asn Val Asp His Lys Pro Ser Asn Thr Lys Val Asp Lys Arg Val Glu
210 215 220
Ser Lys Tyr Gly Pro Pro Cys Pro Pro Cys Pro Ala Pro Glu Phe Glu
225 230 235 240
Gly Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu
245 250 255
Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Ser
260 265 270
Gln Glu Asp Pro Glu Val Gln Phe Asn Trp Tyr Val Asp Gly Val Glu
275 280 285
Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Phe Asn Ser Thr
290 295 300
Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn
305 310 315 320
Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Gly Leu Ala Ser Ser
325 330 335
Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln
340 345 350
Val Tyr Thr Leu Pro Pro Cys Gln Glu Glu Met Thr Lys Asn Gln Val
355 360 365
Ser Leu Trp Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val
370 375 380
Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro
385 390 395 400
Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr
405 410 415
Val Asp Lys Ser Arg Trp Gln Glu Gly Asn Val Phe Ser Cys Ser Val
420 425 430
Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu
435 440 445
Ser Leu Gly Lys
450
<210> 69
<211> 1356
<212> DNA
<213> Homo sapiens
<400> 69
gaggtgcagc tggttgaatc tggcggagga ctggttcagc ctggcggatc tctgagactg 60
tcttgtgccg ccagcggctt caccttcaac acctacgcta tgaactgggt ccgaaaggcc 120
cctggcaaag gactggaatg ggtgggaaga atcaggtcca agtacaacaa ctacgccacc 180
tactacgccg acagcgtgaa ggacagattc accatcagca gggacgacag caagaacagc 240
ctgtacctgc agatgaacag cctgaaaacc gaggacaccg ccgtgtacta ctgtgtcaga 300
cacggcaact tcggcaacag ctatgtgtct tggtttgcct actggggcca gggcacactg 360
gtcacagtta gctctgctag caccaagggc cccagcgtgt tccccctggc cccttgcagc 420
agaagcacca gcgagagcac agccgccctg ggctgcctgg tgaaggacta cttccccgag 480
cccgtgaccg tgtcctggaa cagcggcgct ctgaccagcg gcgtgcatac cttccccgcc 540
gtgctccaga gcagcggact gtactccctg agcagcgtgg tgaccgtgcc ttccagcagc 600
ctgggcacca agacctacac ctgcaacgtg gaccacaagc ccagcaacac caaggtggac 660
aagagagtgg agagcaagta cggccctccc tgcccccctt gccctgcccc cgagttcgag 720
ggcggaccta gcgtgttcct gttccccccc aagcccaagg acaccctgat gatcagcaga 780
acccccgagg tgacctgcgt ggtggtggac gtgtcccagg aggaccccga ggtccagttt 840
aattggtacg tggacggcgt ggaagtgcat aacgccaaga ccaagcccag agaggagcag 900
ttcaacagca cctacagagt ggtgtccgtg ctgaccgtgc tgcaccagga ctggctgaac 960
ggcaaggaat acaagtgcaa ggtctccaac aagggcctgg ccagcagcat cgagaagacc 1020
atcagcaagg ccaagggcca gccacgggag ccccaggtct acaccctgcc accttgtcaa 1080
gaggagatga ccaagaacca ggtgtccctg tggtgtctgg tgaaaggctt ctatcccagc 1140
gatatcgccg tggagtggga gagcaacggc cagcccgaga acaactacaa gaccaccccc 1200
cctgtgctgg acagcgacgg cagcttcttc ctgtactcca agctgaccgt ggacaagtcc 1260
agatggcagg agggcaacgt cttcagctgc tccgtgatgc acgaggccct gcacaaccac 1320
tacacccaga agtccctgag cctgagcctg ggcaag 1356
<210> 70
<211> 214
<212> PRT
<213> Homo sapiens
<400> 70
Glu Ile Val Leu Thr Gln Ser Pro Gly Thr Leu Ser Leu Ser Pro Gly
1 5 10 15
Glu Arg Ala Thr Leu Ser Cys Arg Ala Ser Gln Ser Val Ser Ser Tyr
20 25 30
Leu Ala Trp Tyr Gln Lys Lys Pro Gly Gln Ala Pro Arg Leu Leu Ile
35 40 45
Tyr Asp Ala Ser Asn Arg Ala Thr Gly Ile Pro Asp Arg Phe Ser Gly
50 55 60
Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Arg Leu Glu Pro
65 70 75 80
Glu Asp Phe Ala Val Tyr Tyr Cys Gln Gln Arg Ser Asn Trp Pro Ile
85 90 95
Thr Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys Arg Thr Val Ala Ala
100 105 110
Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Lys Lys Leu Lys Ser Gly
115 120 125
Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala
130 135 140
Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln
145 150 155 160
Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser
165 170 175
Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr
180 185 190
Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser
195 200 205
Phe Asn Arg Gly Glu Cys
210
<210> 71
<211> 642
<212> DNA
<213> Homo sapiens
<400> 71
gagatcgtgc tgacacagag ccctggcaca ctgtcactgt ctccaggcga gagagccaca 60
ctgagctgta gagccagcca gagcgtgtcc tcttacctgg cctggtatca gaagaagcct 120
ggacaggctc ccagactgct gatctacgac gccagcaaca gagccacagg catccccgat 180
agattcagcg gctctggctc tggcaccgac ttcaccctga caatcagcag actggaaccc 240
gaggacttcg ccgtgtacta ctgccagcag agaagcaact ggcccatcac attcggccag 300
ggcaccaagc tggaaatcaa gcgaactgtg gctgcaccat ctgtcttcat cttcccgcca 360
tctgataaga aattgaaatc tggaactgcc tctgttgtgt gcctgctgaa taacttctat 420
cccagagagg ccaaagtaca gtggaaggtg gataacgccc tccaatcggg taactcccag 480
gagagtgtca cagagcagga cagcaaggac agcacctaca gcctcagcag caccctgacg 540
ctgagcaaag cagactacga gaaacacaaa gtctacgcct gcgaagtcac ccatcagggc 600
ctgagctcgc ccgtcacaaa gagcttcaac aggggagagt gt 642
<210> 72
<211> 449
<212> PRT
<213> Homo sapiens
<400> 72
Glu Val Gln Leu Leu Glu Ser Gly Gly Gly Val Val Gln Pro Gly Gly
1 5 10 15
Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Asn Asp Tyr
20 25 30
Ala Met His Trp Val Arg Glu Ala Pro Gly Lys Gly Leu Glu Trp Val
35 40 45
Ser Thr Ile Ser Trp Asn Ser Gly Ser Ile Gly Tyr Ala Asp Ser Val
50 55 60
Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ser Lys Asn Thr Leu Tyr
65 70 75 80
Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr Tyr Cys
85 90 95
Ala Lys Asp Ile Gln Tyr Gly Asn Tyr Tyr Tyr Gly Met Asp Tyr Trp
100 105 110
Gly Gln Gly Thr Leu Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro
115 120 125
Ser Val Phe Pro Leu Ala Pro Cys Ser Arg Ser Thr Ser Glu Ser Thr
130 135 140
Ala Ala Leu Gly Cys Leu Val Glu Asp Tyr Phe Pro Glu Pro Val Thr
145 150 155 160
Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro
165 170 175
Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr
180 185 190
Val Pro Ser Ser Ser Leu Gly Thr Lys Thr Tyr Thr Cys Asn Val Asp
195 200 205
His Lys Pro Ser Asn Thr Lys Val Asp Glu Arg Val Glu Ser Lys Tyr
210 215 220
Gly Pro Pro Cys Pro Pro Cys Pro Ala Pro Glu Phe Glu Gly Gly Pro
225 230 235 240
Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser
245 250 255
Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Ser Gln Glu Asp
260 265 270
Pro Glu Val Gln Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn
275 280 285
Ala Lys Thr Lys Pro Arg Glu Glu Gln Phe Asn Ser Thr Tyr Arg Val
290 295 300
Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu
305 310 315 320
Tyr Lys Cys Lys Val Ser Asn Lys Gly Leu Ala Ser Ser Ile Glu Lys
325 330 335
Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Cys Thr
340 345 350
Leu Pro Pro Ser Gln Glu Glu Met Thr Lys Asn Gln Val Ser Leu Ser
355 360 365
Cys Ala Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu
370 375 380
Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu
385 390 395 400
Asp Ser Asp Gly Ser Phe Phe Leu Val Ser Lys Leu Thr Val Asp Lys
405 410 415
Ser Arg Trp Gln Glu Gly Asn Val Phe Ser Cys Ser Val Met His Glu
420 425 430
Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Leu Gly
435 440 445
Lys
<210> 73
<211> 1347
<212> DNA
<213> Homo sapiens
<400> 73
gaagtgcagc tgctggaatc tggtggcgga gttgttcagc ctggcggctc tctgagactg 60
tcttgtgctg ccagcggctt caccttcaac gactacgcta tgcactgggt ccgagaggcc 120
cctggcaaag gacttgaatg ggtgtccacc atcagctgga acagcggctc tatcggctac 180
gccgattccg tgaagggcag attcaccatc tccagagaca acagcaagaa caccctgtac 240
ctgcagatga acagcctgag agccgaggac accgccgtgt actactgtgc caaggacatc 300
cagtacggca actactacta cggcatggac tactggggcc agggaacact ggttaccgtt 360
agctctgcta gcaccaaggg ccccagcgtg ttccccctgg ccccttgcag cagaagcacc 420
agcgagagca cagccgccct gggctgcctg gtggaggact acttccccga gcccgtgacc 480
gtgtcctgga acagcggcgc tctgaccagc ggcgtgcata ccttccccgc cgtgctccag 540
agcagcggac tgtactccct gagcagcgtg gtgaccgtgc cttccagcag cctgggcacc 600
aagacctaca cctgcaacgt ggaccacaag cccagcaaca ccaaggtgga cgagagagtg 660
gagagcaagt acggccctcc ctgcccccct tgccctgccc ccgagttcga aggcggacct 720
agcgtgttcc tgttcccccc caagcccaag gacaccctga tgatcagcag aacccccgag 780
gtgacctgcg tggtggtgga cgtgtcccag gaggaccccg aggtccagtt taattggtac 840
gtggacggcg tggaagtgca taacgccaag accaagccca gagaggagca gttcaacagc 900
acctacagag tggtgtccgt gctgaccgtg ctgcaccagg actggctgaa cggcaaggaa 960
tacaagtgca aggtctccaa caagggcctg gccagcagca tcgagaagac catcagcaag 1020
gccaagggcc agccacggga gccccaggtc tgcaccctgc cacctagcca agaggagatg 1080
accaagaacc aggtgtccct gagctgtgcc gtgaaaggct tctatcccag cgatatcgcc 1140
gtggagtggg agagcaacgg ccagcccgag aacaactaca agaccacccc ccctgtgctg 1200
gacagcgacg gcagcttctt cctggtttcc aagctgaccg tggacaagtc cagatggcag 1260
gagggcaacg tcttcagctg ctccgtgatg cacgaggccc tgcacaacca ctacacccag 1320
aagtccctga gcctgagcct gggcaag 1347
<210> 74
<211> 449
<212> PRT
<213> Homo sapiens
<400> 74
Glu Val Gln Leu Leu Glu Ser Gly Gly Gly Val Val Gln Pro Gly Gly
1 5 10 15
Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Asn Asp Tyr
20 25 30
Ala Met His Trp Val Arg Glu Ala Pro Gly Lys Gly Leu Glu Trp Val
35 40 45
Ser Thr Ile Ser Trp Asn Ser Gly Ser Ile Gly Tyr Ala Asp Ser Val
50 55 60
Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ser Lys Asn Thr Leu Tyr
65 70 75 80
Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr Tyr Cys
85 90 95
Ala Lys Asp Ile Gln Tyr Gly Asn Tyr Tyr Tyr Gly Met Asp Tyr Trp
100 105 110
Gly Gln Gly Thr Leu Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro
115 120 125
Ser Val Phe Pro Leu Ala Pro Cys Ser Arg Ser Thr Ser Glu Ser Thr
130 135 140
Ala Ala Leu Gly Cys Leu Val Glu Asp Tyr Phe Pro Glu Pro Val Thr
145 150 155 160
Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro
165 170 175
Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr
180 185 190
Val Pro Ser Ser Ser Leu Gly Thr Lys Thr Tyr Thr Cys Asn Val Asp
195 200 205
His Lys Pro Ser Asn Thr Lys Val Asp Glu Arg Val Glu Ser Lys Tyr
210 215 220
Gly Pro Pro Cys Pro Pro Cys Pro Ala Pro Glu Phe Glu Gly Gly Pro
225 230 235 240
Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser
245 250 255
Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Ser Gln Glu Asp
260 265 270
Pro Glu Val Gln Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn
275 280 285
Ala Lys Thr Lys Pro Arg Glu Glu Gln Phe Ala Ser Thr Tyr Arg Val
290 295 300
Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu
305 310 315 320
Tyr Lys Cys Lys Val Ser Asn Lys Gly Leu Pro Ser Ser Ile Glu Lys
325 330 335
Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Cys Thr
340 345 350
Leu Pro Pro Ser Gln Glu Glu Met Thr Lys Asn Gln Val Ser Leu Ser
355 360 365
Cys Ala Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu
370 375 380
Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu
385 390 395 400
Asp Ser Asp Gly Ser Phe Phe Leu Val Ser Lys Leu Thr Val Asp Lys
405 410 415
Ser Arg Trp Gln Glu Gly Asn Val Phe Ser Cys Ser Val Met His Glu
420 425 430
Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Leu Gly
435 440 445
Lys
<210> 75
<211> 1347
<212> DNA
<213> Homo sapiens
<400> 75
gaagtgcagc tgctggaatc tggtggcgga gttgttcagc ctggcggctc tctgagactg 60
tcttgtgctg ccagcggctt caccttcaac gactacgcta tgcactgggt ccgagaggcc 120
cctggcaaag gacttgaatg ggtgtccacc atcagctgga acagcggctc tatcggctac 180
gccgattccg tgaagggcag attcaccatc tccagagaca acagcaagaa caccctgtac 240
ctgcagatga acagcctgag agccgaggac accgccgtgt actactgtgc caaggacatc 300
cagtacggca actactacta cggcatggac tactggggcc agggaacact ggttaccgtt 360
agctctgcta gcaccaaggg ccccagcgtg ttccccctgg ccccttgcag cagaagcacc 420
agcgagagca cagccgccct gggctgcctg gtggaggact acttccccga gcccgtgacc 480
gtgtcctgga acagcggcgc tctgaccagc ggcgtgcata ccttccccgc cgtgctccag 540
agcagcggac tgtactccct gagcagcgtg gtgaccgtgc cttccagcag cctgggcacc 600
aagacctaca cctgcaacgt ggaccacaag cccagcaaca ccaaggtgga cgagagagtg 660
gagagcaagt acggccctcc ctgcccccct tgccctgccc ccgagttcga aggcggacct 720
agcgtgttcc tgttcccccc caagcccaag gacaccctga tgatcagcag aacccccgag 780
gtgacctgcg tggtggtgga cgtgtcccag gaggaccccg aggtccagtt taattggtac 840
gtggacggcg tggaagtgca taacgccaag accaagccca gagaggagca gttcgccagc 900
acctacagag tggtgtccgt gctgaccgtg ctgcaccagg actggctgaa cggcaaggaa 960
tacaagtgca aggtctccaa caagggcctg cctagcagca tcgagaagac catcagcaag 1020
gccaagggcc agccacggga gccccaggtc tgcaccctgc cacctagcca agaggagatg 1080
accaagaacc aggtgtccct gagctgtgcc gtgaaaggct tctatcccag cgatatcgcc 1140
gtggagtggg agagcaacgg ccagcccgag aacaactaca agaccacccc ccctgtgctg 1200
gacagcgacg gcagcttctt cctggtttcc aagctgaccg tggacaagtc cagatggcag 1260
gagggcaacg tcttcagctg ctccgtgatg cacgaggccc tgcacaacca ctacacccag 1320
aagtccctga gcctgagcct gggcaag 1347
<210> 76
<211> 223
<212> PRT
<213> Homo sapiens
<400> 76
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly
1 5 10 15
Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Asn Thr Tyr
20 25 30
Ala Met Asn Trp Val Arg Lys Ala Pro Gly Lys Gly Leu Glu Trp Val
35 40 45
Gly Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp
50 55 60
Ser Val Lys Asp Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Asn Ser
65 70 75 80
Leu Tyr Leu Gln Met Asn Ser Leu Lys Thr Glu Asp Thr Ala Val Tyr
85 90 95
Tyr Cys Val Arg His Gly Asn Phe Gly Asn Ser Tyr Val Ser Trp Phe
100 105 110
Ala Tyr Trp Gly Gln Gly Thr Leu Val Thr Val Ser Ser Ala Ser Thr
115 120 125
Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Cys Ser Arg Ser Thr Ser
130 135 140
Glu Ser Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu
145 150 155 160
Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His
165 170 175
Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser
180 185 190
Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Lys Thr Tyr Thr Cys
195 200 205
Asn Val Asp His Lys Pro Ser Asn Thr Lys Val Asp Lys Arg Val
210 215 220
<210> 77
<211> 669
<212> DNA
<213> Homo sapiens
<400> 77
gaggtgcagc tggttgaatc tggcggagga ctggttcagc ctggcggatc tctgagactg 60
tcttgtgccg ccagcggctt caccttcaac acctacgcta tgaactgggt ccgaaaggcc 120
cctggcaaag gactggaatg ggtgggaaga atcaggtcca agtacaacaa ctacgccacc 180
tactacgccg acagcgtgaa ggacagattc accatcagca gggacgacag caagaacagc 240
ctgtacctgc agatgaacag cctgaaaacc gaggacaccg ccgtgtacta ctgtgtcaga 300
cacggcaact tcggcaacag ctatgtgtct tggtttgcct actggggcca gggcacactg 360
gtcacagtta gctctgctag caccaagggc cccagcgtgt tccccctggc cccttgcagc 420
agaagcacca gcgagagcac agccgccctg ggctgcctgg tgaaggacta cttccccgag 480
cccgtgaccg tgtcctggaa cagcggcgct ctgaccagcg gcgtgcatac cttccccgcc 540
gtgctccaga gcagcggact gtactccctg agcagcgtgg tgaccgtgcc ttccagcagc 600
ctgggcacca agacctacac ctgcaacgtg gaccacaagc ccagcaacac caaggtggac 660
aagagagtg 669
<210> 78
<211> 444
<212> PRT
<213> Homo sapiens
<400> 78
Gln Ala Val Val Thr Gln Glu Pro Ser Leu Thr Val Ser Pro Gly Gly
1 5 10 15
Thr Val Thr Leu Thr Cys Arg Ser Ser Thr Gly Ala Val Thr Thr Ser
20 25 30
Asn Tyr Ala Asn Trp Val Gln Glu Lys Pro Gly Gln Ala Pro Arg Gly
35 40 45
Leu Ile Gly Gly Thr Asn Lys Arg Ala Pro Trp Thr Pro Ala Arg Phe
50 55 60
Ser Gly Ser Leu Leu Gly Gly Lys Ala Ala Leu Thr Ile Thr Gly Ala
65 70 75 80
Gln Ala Glu Asp Glu Ala Glu Tyr Tyr Cys Val Leu Trp Tyr Ser Asn
85 90 95
Leu Trp Val Phe Gly Gly Gly Thr Lys Leu Thr Val Leu Gly Gln Pro
100 105 110
Lys Ala Ala Pro Ser Val Thr Leu Phe Pro Pro Ser Ser Glu Glu Leu
115 120 125
Gln Ala Asn Lys Ala Thr Leu Val Cys Leu Ile Ser Asp Phe Tyr Pro
130 135 140
Gly Ala Val Thr Val Ala Trp Lys Ala Asp Ser Ser Pro Val Lys Ala
145 150 155 160
Gly Val Glu Thr Thr Thr Pro Ser Lys Gln Ser Asn Asn Lys Tyr Ala
165 170 175
Ala Ser Ser Tyr Leu Ser Leu Thr Pro Glu Gln Trp Lys Ser His Arg
180 185 190
Ser Tyr Ser Cys Gln Val Thr His Glu Gly Ser Thr Val Glu Lys Thr
195 200 205
Val Ala Pro Thr Glu Cys Ser Glu Ser Lys Tyr Gly Pro Pro Cys Pro
210 215 220
Pro Cys Pro Ala Pro Glu Phe Glu Gly Gly Pro Ser Val Phe Leu Phe
225 230 235 240
Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val
245 250 255
Thr Cys Val Val Val Asp Val Ser Gln Glu Asp Pro Glu Val Gln Phe
260 265 270
Asn Trp Tyr Val Asp Gly Val Glu Val His Asn Ala Lys Thr Lys Pro
275 280 285
Arg Glu Glu Gln Phe Ala Ser Thr Tyr Arg Val Val Ser Val Leu Thr
290 295 300
Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val
305 310 315 320
Ser Asn Lys Gly Leu Pro Ser Ser Ile Glu Lys Thr Ile Ser Lys Ala
325 330 335
Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro Cys Gln
340 345 350
Glu Glu Met Thr Lys Asn Gln Val Ser Leu Trp Cys Leu Val Lys Gly
355 360 365
Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro
370 375 380
Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser
385 390 395 400
Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Glu
405 410 415
Gly Asn Val Phe Ser Cys Ser Val Met His Glu Ala Leu His Asn His
420 425 430
Tyr Thr Gln Lys Ser Leu Ser Leu Ser Leu Gly Lys
435 440
<210> 79
<211> 1332
<212> DNA
<213> Homo sapiens
<400> 79
caggctgtgg tcacacaaga gcctagcctg acagtgtctc ctggcggcac agtgaccctg 60
acctgtagat cttctacagg cgccgtgacc accagcaact acgctaattg ggtgcaggag 120
aagcccggcc aggctcctag aggactgatc ggcggaacaa acaagagagc cccttggaca 180
cccgccagat tctctggatc tctgctcggc ggaaaggccg ctctgacaat cactggtgct 240
caggctgagg acgaggccga gtactattgt gtgctgtggt acagcaacct gtgggtgttc 300
ggcggaggca ccaaactgac agttctgggt cagcccaagg cggcgccctc ggtcactctg 360
ttcccgccct cctctgagga gcttcaagcc aacaaggcca cactggtgtg tctcataagt 420
gacttctatc cgggagccgt gacagtggcc tggaaggcag atagcagccc cgtcaaggcg 480
ggagtggaga ccaccacacc ctccaaacaa agcaacaaca agtacgcggc cagcagctac 540
ctgagcctga cgcctgagca gtggaagtcc cacagaagct acagctgcca ggtcacgcat 600
gaagggagca ccgtggagaa gacagtggcc cctacagaat gttcagagag caagtacggc 660
cctccctgcc ccccttgccc tgcccccgag ttcgagggcg gacctagcgt gttcctgttc 720
ccccccaagc ccaaggacac cctgatgatc agcagaaccc ccgaggtgac ctgcgtggtg 780
gtggacgtgt cccaggagga ccccgaggtc cagtttaatt ggtacgtgga cggcgtggaa 840
gtgcataacg ccaagaccaa gcccagagag gagcagttcg ccagcaccta cagagtggtg 900
tccgtgctga ccgtgctgca ccaggactgg ctgaacggca aggaatacaa gtgcaaggtc 960
tccaacaagg gcctgcctag cagcatcgag aagaccatca gcaaggccaa gggccagcca 1020
cgggagcccc aggtctacac cctgccacct tgtcaagagg agatgaccaa gaaccaggtg 1080
tccctgtggt gtctggtgaa aggcttctat cccagcgata tcgccgtgga gtgggagagc 1140
aacggccagc ccgagaacaa ctacaagacc accccccctg tgctggacag cgacggcagc 1200
ttcttcctgt actccaagct gaccgtggac aagtccagat ggcaggaggg caacgtcttc 1260
agctgctccg tgatgcacga ggccctgcac aaccactaca cccagaagtc cctgagcctg 1320
agcctgggca ag 1332
<210> 80
<211> 218
<212> PRT
<213> Homo sapiens
<400> 80
Asp Ile Val Leu Thr Gln Ser Pro Ala Ser Leu Ala Val Ser Pro Gly
1 5 10 15
Gln Arg Ala Thr Ile Thr Cys Arg Ala Ser Lys Ser Val Ser Thr Ser
20 25 30
Gly Tyr Ser Tyr Met His Trp Tyr Gln Lys Lys Pro Gly Gln Pro Pro
35 40 45
Lys Leu Leu Ile Tyr Leu Ala Ser Asn Leu Glu Ser Gly Val Pro Ala
50 55 60
Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Asn
65 70 75 80
Pro Val Glu Ala Glu Asp Thr Ala Asn Tyr Tyr Cys Gln His Ser Arg
85 90 95
Glu Leu Pro Trp Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg
100 105 110
Thr Val Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln
115 120 125
Leu Lys Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr
130 135 140
Pro Arg Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser
145 150 155 160
Gly Asn Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr
165 170 175
Tyr Ser Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys
180 185 190
His Lys Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro
195 200 205
Val Thr Lys Ser Phe Asn Arg Gly Glu Cys
210 215
<210> 81
<211> 654
<212> DNA
<213> Homo sapiens
<400> 81
gacatcgtgc tgacacagag ccctgcttct ctggctgtgt ctcctggcca gagagccacc 60
atcacctgta gagccagcaa gagcgtgtcc accagcggct actcttacat gcactggtat 120
cagaagaagc ccggccagcc tcctaagctg ctgatctacc tggctagcaa cctcgaaagc 180
ggagtgcctg ctagattttc tggcagcggc tctggcaccg acttcaccct gacaatcaac 240
cccgtggaag ccgaagacac cgccaactac tactgccagc acagcagaga gctgccctgg 300
acatttggcc agggcaccaa ggtggaaatc aagcgaactg tggctgcacc atctgtcttc 360
atcttcccgc catctgatga gcagttgaaa tctggaactg cctctgttgt gtgcctgctg 420
aataacttct atcccagaga ggccaaagta cagtggaagg tggataacgc cctccaatcg 480
ggtaactccc aggagagtgt cacagagcag gacagcaagg acagcaccta cagcctcagc 540
agcaccctga cgctgagcaa agcagactac gagaaacaca aagtctacgc ctgcgaagtc 600
acccatcagg gcctgagctc gcccgtcaca aagagcttca acaggggaga gtgt 654
<210> 82
<211> 449
<212> PRT
<213> Homo sapiens
<400> 82
Gln Val Gln Leu Val Gln Ser Gly Ser Glu Leu Lys Lys Pro Gly Ala
1 5 10 15
Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Ile Phe Thr Asn Phe
20 25 30
Gly Met Asn Trp Val Arg Glu Ala Pro Gly Gln Gly Leu Glu Trp Met
35 40 45
Gly Trp Ile Asn Thr Tyr Thr Gly Glu Gln Ile Tyr Ala Asp Gly Phe
50 55 60
Thr Gly Arg Phe Val Phe Ser Leu Asp Thr Ser Ala Ser Thr Ala Tyr
65 70 75 80
Leu Gln Ile Ser Ser Leu Lys Ala Glu Asp Thr Ala Val Tyr Phe Cys
85 90 95
Ala Arg Gly Glu Ile Tyr Tyr Gly Tyr Asp Val Gly Phe Val Tyr Trp
100 105 110
Gly Gln Gly Thr Leu Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro
115 120 125
Ser Val Phe Pro Leu Ala Pro Cys Ser Arg Ser Thr Ser Glu Ser Thr
130 135 140
Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr
145 150 155 160
Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro
165 170 175
Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr
180 185 190
Val Pro Ser Ser Ser Leu Gly Thr Lys Thr Tyr Thr Cys Asn Val Asp
195 200 205
His Lys Pro Ser Asn Thr Lys Val Asp Lys Arg Val Glu Ser Lys Tyr
210 215 220
Gly Pro Pro Cys Pro Pro Cys Pro Ala Pro Glu Phe Glu Gly Gly Pro
225 230 235 240
Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser
245 250 255
Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Ser Gln Glu Asp
260 265 270
Pro Glu Val Gln Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn
275 280 285
Ala Lys Thr Lys Pro Arg Glu Glu Gln Phe Asn Ser Thr Tyr Arg Val
290 295 300
Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu
305 310 315 320
Tyr Lys Cys Lys Val Ser Asn Lys Gly Leu Ala Ser Ser Ile Glu Lys
325 330 335
Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Cys Thr
340 345 350
Leu Pro Pro Ser Gln Glu Glu Met Thr Lys Asn Gln Val Ser Leu Ser
355 360 365
Cys Ala Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu
370 375 380
Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu
385 390 395 400
Asp Ser Asp Gly Ser Phe Phe Leu Val Ser Lys Leu Thr Val Asp Lys
405 410 415
Ser Arg Trp Gln Glu Gly Asn Val Phe Ser Cys Ser Val Met His Glu
420 425 430
Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Leu Gly
435 440 445
Lys
<210> 83
<211> 1347
<212> DNA
<213> Homo sapiens
<400> 83
caggttcagc tggtgcagtc tggcagcgag ctgaagaaac ctggcgcctc tgtgaaggtg 60
tcctgcaagg ctagcggcta catcttcacc aacttcggca tgaactgggt ccgagaggct 120
cctggacagg gactcgaatg gatgggctgg atcaacacct acaccggcga gcagatctac 180
gccgatggct tcacaggcag attcgtgttc agcctggaca ccagcgccag cacagcttac 240
ctgcagatca gctctctgaa ggccgaggat accgccgtgt acttctgtgc cagaggcgag 300
atctactacg gctacgacgt gggctttgtg tactggggcc agggaacact ggtcaccgtt 360
agctctgcta gcaccaaggg ccccagcgtg ttccccctgg ccccttgcag cagaagcacc 420
agcgagagca cagccgccct gggctgcctg gtgaaggact acttccccga gcccgtgacc 480
gtgtcctgga acagcggcgc tctgaccagc ggcgtgcata ccttccccgc cgtgctccag 540
agcagcggac tgtactccct gagcagcgtg gtgaccgtgc cttccagcag cctgggcacc 600
aagacctaca cctgcaacgt ggaccacaag cccagcaaca ccaaggtgga caagagagtg 660
gagagcaagt acggccctcc ctgcccccct tgccctgccc ccgagttcga gggcggacct 720
agcgtgttcc tgttcccccc caagcccaag gacaccctga tgatcagcag aacccccgag 780
gtgacctgcg tggtggtgga cgtgtcccag gaggaccccg aggtccagtt taattggtac 840
gtggacggcg tggaagtgca taacgccaag accaagccca gagaggagca gttcaacagc 900
acctacagag tggtgtccgt gctgaccgtg ctgcaccagg actggctgaa cggcaaggaa 960
tacaagtgca aggtctccaa caagggcctg gccagcagca tcgagaagac catcagcaag 1020
gccaagggcc agccacggga gccccaggtc tgcaccctgc cacctagcca agaggagatg 1080
accaagaacc aggtgtccct gagctgtgcc gtgaaaggct tctatcccag cgatatcgcc 1140
gtggagtggg agagcaacgg ccagcccgag aacaactaca agaccacccc ccctgtgctg 1200
gacagcgacg gcagcttctt cctggtttcc aagctgaccg tggacaagtc cagatggcag 1260
gagggcaacg tcttcagctg ctccgtgatg cacgaggccc tgcacaacca ctacacccag 1320
aagtccctga gcctgagcct gggcaag 1347
<210> 84
<211> 218
<212> PRT
<213> Homo sapiens
<400> 84
Asp Ile Val Leu Thr Gln Ser Pro Ala Ser Leu Ala Val Ser Pro Gly
1 5 10 15
Gln Arg Ala Thr Ile Thr Cys Arg Ala Ser Lys Ser Val Thr Thr Ser
20 25 30
Gly Tyr Ser Tyr Ile His Trp Tyr Gln Lys Lys Pro Gly Gln Pro Pro
35 40 45
Lys Leu Leu Ile Tyr Leu Ala Ser Asp Leu Glu Ala Gly Val Pro Ala
50 55 60
Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Asn
65 70 75 80
Pro Val Glu Ala Glu Asp Thr Ala Asn Tyr Tyr Cys Gln His Ser Arg
85 90 95
Glu Leu Pro Trp Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg
100 105 110
Thr Val Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln
115 120 125
Leu Lys Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr
130 135 140
Pro Arg Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser
145 150 155 160
Gly Asn Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr
165 170 175
Tyr Ser Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys
180 185 190
His Lys Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro
195 200 205
Val Thr Lys Ser Phe Asn Arg Gly Glu Cys
210 215
<210> 85
<211> 654
<212> DNA
<213> Homo sapiens
<400> 85
gacatcgtgc tgacacagag ccctgcttct ctggctgtgt ctcctggcca gagagccacc 60
atcacctgta gagccagcaa gagcgtgacc accagcggct actcttacat ccactggtat 120
cagaagaagc ccggccagcc tcctaagctg ctgatctacc tggccagcga tctggaagct 180
ggcgtgccag ctagattttc tggcagcggc tctggcaccg acttcaccct gacaatcaac 240
cccgtggaag ccgaagacac cgccaactac tactgccagc acagcagaga gctgccctgg 300
acatttggcc agggcaccaa ggtggaaatc aagcgaactg tggctgcacc atctgtcttc 360
atcttcccgc catctgatga gcagttgaaa tctggaactg cctctgttgt gtgcctgctg 420
aataacttct atcccagaga ggccaaagta cagtggaagg tggataacgc cctccaatcg 480
ggtaactccc aggagagtgt cacagagcag gacagcaagg acagcaccta cagcctcagc 540
agcaccctga cgctgagcaa agcagactac gagaaacaca aagtctacgc ctgcgaagtc 600
acccatcagg gcctgagctc gcccgtcaca aagagcttca acaggggaga gtgt 654
<210> 86
<211> 449
<212> PRT
<213> Homo sapiens
<400> 86
Gln Val Gln Leu Val Gln Ser Gly Ser Glu Leu Lys Lys Pro Gly Ala
1 5 10 15
Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Ile Phe Thr Asn Phe
20 25 30
Gly Met Asn Trp Val Arg Glu Ala Pro Gly Gln Gly Leu Glu Trp Met
35 40 45
Gly Trp Ile Asn Thr Tyr Thr Gly Glu Gln Ile Tyr Ala Asp Gly Phe
50 55 60
Thr Gly Arg Phe Val Phe Ser Leu Asp Thr Ser Ala Ser Thr Ala Tyr
65 70 75 80
Leu Gln Ile Ser Ser Leu Lys Ala Glu Asp Thr Ala Val Tyr Phe Cys
85 90 95
Ala Arg Gly Glu Ile Tyr Tyr Gly Tyr Asp Val Gly Phe Val Tyr Trp
100 105 110
Gly Gln Gly Thr Leu Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro
115 120 125
Ser Val Phe Pro Leu Ala Pro Cys Ser Arg Ser Thr Ser Glu Ser Thr
130 135 140
Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr
145 150 155 160
Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro
165 170 175
Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr
180 185 190
Val Pro Ser Ser Ser Leu Gly Thr Lys Thr Tyr Thr Cys Asn Val Asp
195 200 205
His Lys Pro Ser Asn Thr Lys Val Asp Lys Arg Val Glu Ser Lys Tyr
210 215 220
Gly Pro Pro Cys Pro Pro Cys Pro Ala Pro Glu Phe Glu Gly Gly Pro
225 230 235 240
Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser
245 250 255
Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Ser Gln Glu Asp
260 265 270
Pro Glu Val Gln Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn
275 280 285
Ala Lys Thr Lys Pro Arg Glu Glu Gln Phe Asn Ser Thr Tyr Arg Val
290 295 300
Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu
305 310 315 320
Tyr Lys Cys Lys Val Ser Asn Lys Gly Leu Ala Ser Ser Ile Glu Lys
325 330 335
Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Cys Thr
340 345 350
Leu Pro Pro Ser Gln Glu Glu Met Thr Lys Asn Gln Val Ser Leu Ser
355 360 365
Cys Ala Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu
370 375 380
Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu
385 390 395 400
Asp Ser Asp Gly Ser Phe Phe Leu Val Ser Lys Leu Thr Val Asp Lys
405 410 415
Ser Arg Trp Gln Glu Gly Asn Val Phe Ser Cys Ser Val Met His Glu
420 425 430
Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Leu Gly
435 440 445
Lys
<210> 87
<211> 1347
<212> DNA
<213> Homo sapiens
<400> 87
caggttcagc tggtgcagtc tggcagcgag ctgaagaaac ctggcgcctc tgtgaaggtg 60
tcctgcaagg ctagcggcta catcttcacc aacttcggca tgaactgggt ccgagaggct 120
cctggacagg gactcgaatg gatgggctgg atcaacacct acaccggcga gcagatctac 180
gccgatggct tcacaggcag attcgtgttc agcctggaca ccagcgccag cacagcttac 240
ctgcagatca gctctctgaa ggccgaggat accgccgtgt acttctgtgc cagaggcgag 300
atctactacg gctacgacgt gggctttgtg tactggggcc agggaacact ggtcaccgtt 360
agctctgcta gcaccaaggg ccccagcgtg ttccccctgg ccccttgcag cagaagcacc 420
agcgagagca cagccgccct gggctgcctg gtgaaggact acttccccga gcccgtgacc 480
gtgtcctgga acagcggcgc tctgaccagc ggcgtgcata ccttccccgc cgtgctccag 540
agcagcggac tgtactccct gagcagcgtg gtgaccgtgc cttccagcag cctgggcacc 600
aagacctaca cctgcaacgt ggaccacaag cccagcaaca ccaaggtgga caagagagtg 660
gagagcaagt acggccctcc ctgcccccct tgccctgccc ccgagttcga gggcggacct 720
agcgtgttcc tgttcccccc caagcccaag gacaccctga tgatcagcag aacccccgag 780
gtgacctgcg tggtggtgga cgtgtcccag gaggaccccg aggtccagtt taattggtac 840
gtggacggcg tggaagtgca taacgccaag accaagccca gagaggagca gttcaacagc 900
acctacagag tggtgtccgt gctgaccgtg ctgcaccagg actggctgaa cggcaaggaa 960
tacaagtgca aggtctccaa caagggcctg gccagcagca tcgagaagac catcagcaag 1020
gccaagggcc agccacggga gccccaggtc tgcaccctgc cacctagcca agaggagatg 1080
accaagaacc aggtgtccct gagctgtgcc gtgaaaggct tctatcccag cgatatcgcc 1140
gtggagtggg agagcaacgg ccagcccgag aacaactaca agaccacccc ccctgtgctg 1200
gacagcgacg gcagcttctt cctggtttcc aagctgaccg tggacaagtc cagatggcag 1260
gagggcaacg tcttcagctg ctccgtgatg cacgaggccc tgcacaacca ctacacccag 1320
aagtccctga gcctgagcct gggcaag 1347
<210> 88
<211> 219
<212> PRT
<213> Homo sapiens
<400> 88
Asp Val Val Met Thr Gln Ser Pro Leu Ser Leu Pro Val Thr Pro Gly
1 5 10 15
Glu Pro Ala Ser Ile Ser Cys Arg Ser Ser Gln Ser Ile Val His Ser
20 25 30
Asn Gly Asn Thr Tyr Leu Glu Trp Tyr Leu Lys Lys Pro Gly Gln Ser
35 40 45
Pro Gln Leu Leu Ile Tyr Lys Val Ser Asn Arg Phe Ser Gly Val Pro
50 55 60
Asp Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Lys Ile
65 70 75 80
Ser Arg Val Glu Ala Glu Asp Val Gly Val Tyr Phe Cys Leu Gln Val
85 90 95
Thr His Val Pro Leu Thr Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys
100 105 110
Arg Thr Val Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu
115 120 125
Gln Leu Lys Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe
130 135 140
Tyr Pro Arg Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln
145 150 155 160
Ser Gly Asn Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser
165 170 175
Thr Tyr Ser Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu
180 185 190
Lys His Lys Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser
195 200 205
Pro Val Thr Lys Ser Phe Asn Arg Gly Glu Cys
210 215
<210> 89
<211> 657
<212> DNA
<213> Homo sapiens
<400> 89
gacgtggtca tgacacagag ccctctgagc ctgcctgtga cacctggcga acctgccagc 60
atcagctgta gaagcagcca gagcatcgtg cacagcaacg gcaacacata cctggagtgg 120
tatctgaaga agcccggcca gtctcctcag ctgctgatct acaaggtgtc caacagattc 180
agcggcgtgc ccgacagatt ctctggctct ggatctggca ccgacttcac cctgaagatc 240
tccagagtgg aagccgagga cgtgggcgtg tacttctgtc tccaggtcac acacgtgccc 300
ctgacatttg gccagggcac caagctggaa atcaagcgaa ctgtggctgc accatctgtc 360
ttcatcttcc cgccatctga tgagcagttg aaatctggaa ctgcctctgt tgtgtgcctg 420
ctgaataact tctatcccag agaggccaaa gtacagtgga aggtggataa cgccctccaa 480
tcgggtaact cccaggagag tgtcacagag caggacagca aggacagcac ctacagcctc 540
agcagcaccc tgacgctgag caaagcagac tacgagaaac acaaagtcta cgcctgcgaa 600
gtcacccatc agggcctgag ctcgcccgtc acaaagagct tcaacagggg agagtgt 657
<210> 90
<211> 442
<212> PRT
<213> Homo sapiens
<400> 90
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ser
1 5 10 15
Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Ala Asp Tyr
20 25 30
Glu Ile His Trp Val Arg Glu Ala Pro Gly Gln Gly Leu Glu Trp Met
35 40 45
Gly Ala Ile His Pro Gly Ser Gly Gly Thr Ala Tyr Ala Gln Lys Phe
50 55 60
Gln Gly Arg Val Thr Leu Thr Ala Asp Glu Ser Ser Thr Thr Ala Tyr
65 70 75 80
Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys
85 90 95
Thr Arg Tyr Tyr Ser Phe Ala Tyr Trp Gly Gln Gly Thr Leu Val Thr
100 105 110
Val Ser Ser Ala Ser Thr Lys Gly Pro Ser Val Phe Pro Leu Ala Pro
115 120 125
Cys Ser Arg Ser Thr Ser Glu Ser Thr Ala Ala Leu Gly Cys Leu Val
130 135 140
Lys Asp Tyr Phe Pro Glu Pro Val Thr Val Ser Trp Asn Ser Gly Ala
145 150 155 160
Leu Thr Ser Gly Val His Thr Phe Pro Ala Val Leu Gln Ser Ser Gly
165 170 175
Leu Tyr Ser Leu Ser Ser Val Val Thr Val Pro Ser Ser Ser Leu Gly
180 185 190
Thr Lys Thr Tyr Thr Cys Asn Val Asp His Lys Pro Ser Asn Thr Lys
195 200 205
Val Asp Lys Arg Val Glu Ser Lys Tyr Gly Pro Pro Cys Pro Pro Cys
210 215 220
Pro Ala Pro Glu Phe Glu Gly Gly Pro Ser Val Phe Leu Phe Pro Pro
225 230 235 240
Lys Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys
245 250 255
Val Val Val Asp Val Ser Gln Glu Asp Pro Glu Val Gln Phe Asn Trp
260 265 270
Tyr Val Asp Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu
275 280 285
Glu Gln Phe Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu
290 295 300
His Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn
305 310 315 320
Lys Gly Leu Ala Ser Ser Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly
325 330 335
Gln Pro Arg Glu Pro Gln Val Cys Thr Leu Pro Pro Ser Gln Glu Glu
340 345 350
Met Thr Lys Asn Gln Val Ser Leu Ser Cys Ala Val Lys Gly Phe Tyr
355 360 365
Pro Ser Asp Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn
370 375 380
Asn Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe
385 390 395 400
Leu Val Ser Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Glu Gly Asn
405 410 415
Val Phe Ser Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr
420 425 430
Gln Lys Ser Leu Ser Leu Ser Leu Gly Lys
435 440
<210> 91
<211> 1326
<212> DNA
<213> Homo sapiens
<400> 91
caggttcagc tggttcagtc tggcgccgaa gtgaagaaac ctggcagcag cgtgaaggtg 60
tcctgcaagg ctagcggcta caccttcgcc gactacgaga tccactgggt ccgagaggct 120
ccaggacagg gacttgaatg gatgggcgct atccatcctg gctctggcgg cacagcttac 180
gcccagaaat tccagggcag agtgaccctg accgccgacg agtctagcac caccgcctac 240
atggaactga gcagcctgag aagcgaggac accgccgtgt actactgcac ccggtactac 300
agcttcgcct actggggaca gggaaccctg gtcacagtca gctctgctag caccaagggc 360
cccagcgtgt tccccctggc cccttgcagc agaagcacca gcgagagcac agccgccctg 420
ggctgcctgg tgaaggacta cttccccgag cccgtgaccg tgtcctggaa cagcggcgct 480
ctgaccagcg gcgtgcatac cttccccgcc gtgctccaga gcagcggact gtactccctg 540
agcagcgtgg tgaccgtgcc ttccagcagc ctgggcacca agacctacac ctgcaacgtg 600
gaccacaagc ccagcaacac caaggtggac aagagagtgg agagcaagta cggccctccc 660
tgcccccctt gccctgcccc cgagttcgag ggcggaccta gcgtgttcct gttccccccc 720
aagcccaagg acaccctgat gatcagcaga acccccgagg tgacctgcgt ggtggtggac 780
gtgtcccagg aggaccccga ggtccagttt aattggtacg tggacggcgt ggaagtgcat 840
aacgccaaga ccaagcccag agaggagcag ttcaacagca cctacagagt ggtgtccgtg 900
ctgaccgtgc tgcaccagga ctggctgaac ggcaaggaat acaagtgcaa ggtctccaac 960
aagggcctgg ccagcagcat cgagaagacc atcagcaagg ccaagggcca gccacgggag 1020
ccccaggtct gcaccctgcc acctagccaa gaggagatga ccaagaacca ggtgtccctg 1080
agctgtgccg tgaaaggctt ctatcccagc gatatcgccg tggagtggga gagcaacggc 1140
cagcccgaga acaactacaa gaccaccccc cctgtgctgg acagcgacgg cagcttcttc 1200
ctggtttcca agctgaccgt ggacaagtcc agatggcagg agggcaacgt cttcagctgc 1260
tccgtgatgc acgaggccct gcacaaccac tacacccaga agtccctgag cctgagcctg 1320
ggcaag 1326
<210> 92
<211> 219
<212> PRT
<213> Homo sapiens
<400> 92
Asp Val Val Met Thr Gln Ser Pro Leu Ser Leu Pro Val Thr Pro Gly
1 5 10 15
Glu Pro Ala Ser Ile Ser Cys Arg Ser Ser Gln Ser Ile Val His Ser
20 25 30
Asn Gly Asn Thr Tyr Leu Glu Trp Tyr Leu Lys Lys Pro Gly Gln Ser
35 40 45
Pro Gln Leu Leu Ile Tyr Lys Val Ser Asn Arg Phe Ser Gly Val Pro
50 55 60
Asp Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Lys Ile
65 70 75 80
Ser Arg Val Glu Ala Glu Asp Val Gly Val Tyr Phe Cys Leu Gln Val
85 90 95
Thr His Val Pro Leu Thr Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys
100 105 110
Arg Thr Val Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Lys
115 120 125
Lys Leu Lys Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe
130 135 140
Tyr Pro Arg Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln
145 150 155 160
Ser Gly Asn Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser
165 170 175
Thr Tyr Ser Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu
180 185 190
Lys His Lys Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser
195 200 205
Pro Val Thr Lys Ser Phe Asn Arg Gly Glu Cys
210 215
<210> 93
<211> 657
<212> DNA
<213> Homo sapiens
<400> 93
gacgtggtca tgacacagag ccctctgagc ctgcctgtga cacctggcga acctgccagc 60
atcagctgta gaagcagcca gagcatcgtg cacagcaacg gcaacacata cctggagtgg 120
tatctgaaga agcccggcca gtctcctcag ctgctgatct acaaggtgtc caacagattc 180
agcggcgtgc ccgacagatt ctctggctct ggatctggca ccgacttcac cctgaagatc 240
tccagagtgg aagccgagga cgtgggcgtg tacttctgtc tccaggtcac acacgtgccc 300
ctgacatttg gccagggcac caagctggaa atcaagcgaa ctgtggctgc accatctgtc 360
ttcatcttcc cgccatctga taagaaattg aaatctggaa ctgcctctgt tgtgtgcctg 420
ctgaataact tctatcccag agaggccaaa gtacagtgga aggtggataa cgccctccaa 480
tcgggtaact cccaggagag tgtcacagag caggacagca aggacagcac ctacagcctc 540
agcagcaccc tgacgctgag caaagcagac tacgagaaac acaaagtcta cgcctgcgaa 600
gtcacccatc agggcctgag ctcgcccgtc acaaagagct tcaacagggg agagtgt 657
<210> 94
<211> 442
<212> PRT
<213> Homo sapiens
<400> 94
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ser
1 5 10 15
Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Ala Asp Tyr
20 25 30
Glu Ile His Trp Val Arg Glu Ala Pro Gly Gln Gly Leu Glu Trp Met
35 40 45
Gly Ala Ile His Pro Gly Ser Gly Gly Thr Ala Tyr Ala Gln Lys Phe
50 55 60
Gln Gly Arg Val Thr Leu Thr Ala Asp Glu Ser Ser Thr Thr Ala Tyr
65 70 75 80
Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys
85 90 95
Thr Arg Tyr Tyr Ser Phe Ala Tyr Trp Gly Gln Gly Thr Leu Val Thr
100 105 110
Val Ser Ser Ala Ser Thr Lys Gly Pro Ser Val Phe Pro Leu Ala Pro
115 120 125
Cys Ser Arg Ser Thr Ser Glu Ser Thr Ala Ala Leu Gly Cys Leu Val
130 135 140
Glu Asp Tyr Phe Pro Glu Pro Val Thr Val Ser Trp Asn Ser Gly Ala
145 150 155 160
Leu Thr Ser Gly Val His Thr Phe Pro Ala Val Leu Gln Ser Ser Gly
165 170 175
Leu Tyr Ser Leu Ser Ser Val Val Thr Val Pro Ser Ser Ser Leu Gly
180 185 190
Thr Lys Thr Tyr Thr Cys Asn Val Asp His Lys Pro Ser Asn Thr Lys
195 200 205
Val Asp Glu Arg Val Glu Ser Lys Tyr Gly Pro Pro Cys Pro Pro Cys
210 215 220
Pro Ala Pro Glu Phe Glu Gly Gly Pro Ser Val Phe Leu Phe Pro Pro
225 230 235 240
Lys Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys
245 250 255
Val Val Val Asp Val Ser Gln Glu Asp Pro Glu Val Gln Phe Asn Trp
260 265 270
Tyr Val Asp Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu
275 280 285
Glu Gln Phe Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu
290 295 300
His Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn
305 310 315 320
Lys Gly Leu Ala Ser Ser Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly
325 330 335
Gln Pro Arg Glu Pro Gln Val Cys Thr Leu Pro Pro Ser Gln Glu Glu
340 345 350
Met Thr Lys Asn Gln Val Ser Leu Ser Cys Ala Val Lys Gly Phe Tyr
355 360 365
Pro Ser Asp Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn
370 375 380
Asn Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe
385 390 395 400
Leu Val Ser Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Glu Gly Asn
405 410 415
Val Phe Ser Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr
420 425 430
Gln Lys Ser Leu Ser Leu Ser Leu Gly Lys
435 440
<210> 95
<211> 1326
<212> DNA
<213> Homo sapiens
<400> 95
caggttcagc tggttcagtc tggcgccgaa gtgaagaaac ctggcagcag cgtgaaggtg 60
tcctgcaagg ctagcggcta caccttcgcc gactacgaga tccactgggt ccgagaggct 120
ccaggacagg gacttgaatg gatgggcgct atccatcctg gctctggcgg cacagcttac 180
gcccagaaat tccagggcag agtgaccctg accgccgacg agtctagcac caccgcctac 240
atggaactga gcagcctgag aagcgaggac accgccgtgt actactgcac ccggtactac 300
agcttcgcct actggggaca gggaaccctg gtcacagtca gctctgctag caccaagggc 360
cccagcgtgt tccccctggc cccttgcagc agaagcacca gcgagagcac agccgccctg 420
ggctgcctgg tggaggacta cttccccgag cccgtgaccg tgtcctggaa cagcggcgct 480
ctgaccagcg gcgtgcatac cttccccgcc gtgctccaga gcagcggact gtactccctg 540
agcagcgtgg tgaccgtgcc ttccagcagc ctgggcacca agacctacac ctgcaacgtg 600
gaccacaagc ccagcaacac caaggtggac gagagagtgg agagcaagta cggccctccc 660
tgcccccctt gccctgcccc cgagttcgaa ggcggaccta gcgtgttcct gttccccccc 720
aagcccaagg acaccctgat gatcagcaga acccccgagg tgacctgcgt ggtggtggac 780
gtgtcccagg aggaccccga ggtccagttt aattggtacg tggacggcgt ggaagtgcat 840
aacgccaaga ccaagcccag agaggagcag ttcaacagca cctacagagt ggtgtccgtg 900
ctgaccgtgc tgcaccagga ctggctgaac ggcaaggaat acaagtgcaa ggtctccaac 960
aagggcctgg ccagcagcat cgagaagacc atcagcaagg ccaagggcca gccacgggag 1020
ccccaggtct gcaccctgcc acctagccaa gaggagatga ccaagaacca ggtgtccctg 1080
agctgtgccg tgaaaggctt ctatcccagc gatatcgccg tggagtggga gagcaacggc 1140
cagcccgaga acaactacaa gaccaccccc cctgtgctgg acagcgacgg cagcttcttc 1200
ctggtttcca agctgaccgt ggacaagtcc agatggcagg agggcaacgt cttcagctgc 1260
tccgtgatgc acgaggccct gcacaaccac tacacccaga agtccctgag cctgagcctg 1320
ggcaag 1326
Claims (20)
1.一种双特异性抗体或其抗原结合片段,其包含:
(a)第一抗原结合部分或其抗原结合片段,所述第一抗原结合部分包含第一轻链和第一重链,所述第一轻链为κ型轻链,所述第一抗原结合部分包含与第一抗原结合的第一结合结构域;和
(b)第二抗原结合部分或其抗原结合片段,所述第二抗原结合部分包含第二轻链和第二重链,所述第二轻链为λ型轻链,所述第二抗原结合部分包含与第二抗原结合的第二结合结构域;
所述第二抗原为CD3抗原;
所述第二结合结构域的第二轻链CDR为:
由氨基酸序列SEQ ID NO: 7构成的第二轻链CDR1;
由氨基酸序列SEQ ID NO: 8构成的第二轻链CDR2;
由氨基酸序列SEQ ID NO: 21构成的第二轻链CDR3;
所述第二结合结构域的第二重链CDR为:
由氨基酸序列SEQ ID NO: 26构成的第二重链CDR1;
由氨基酸序列SEQ ID NO: 27构成的第二重链CDR2;
由氨基酸序列SEQ ID NO: 28构成的第二重链CDR3。
2.根据权利要求1所述的双特异性抗体或其抗原结合片段,其中,所述第二抗原结合部分的第二轻链可变区具有Gln40Glu突变(VλCD3: Gln40Glu);所述第二抗原结合部分的第二重链可变区具有Gln39Lys突变(VHCD3: Gln39Lys)。
3.根据权利要求1或2所述的双特异性抗体或其抗原结合片段,其中,所述第二结合结构域包含氨基酸序列SEQ ID NO: 18或其任何变体的第二轻链可变区;和氨基酸序列SEQID NO: 50或其任何变体的第二重链可变区。
4.根据权利要求1所述的双特异性抗体或其抗原结合片段,其中,所述第二抗原结合部分的第二轻链为氨基酸序列SEQ ID NO: 58;和所述第二抗原结合部分的第二重链为氨基酸序列SEQ ID NO: 60;或者
所述第二抗原结合部分的第二轻链为氨基酸序列SEQ ID NO: 66;和所述第二抗原结合部分的第二重链为氨基酸序列SEQ ID NO: 68。
5.根据权利要求1或2所述的双特异性抗体或其抗原结合片段,其中,所述第一抗原为肿瘤抗原。
6.根据权利要求5所述的双特异性抗体或其抗原结合片段,其中,所述肿瘤抗原选自:CD19、CD20、CD22、CD30、CD38、CD72、CD180、CD171(L1CAM)、CD123、CD133、CD138、CD37、CD70、CD79a、CD79b、CD56、CD74、CD166、CD71、CLL-1/CLECK12A、ROR1、BCMA、GPC3、间皮素、CD33/IL3Ra、c-Met、PSCA、PSMA、糖脂F77、EGFRvIII、GD-2、MY-ESO-1、Her2、Her3、MUC1、MUC17、Claudin18或MAGEA3。
7.根据权利要求5所述的双特异性抗体或其抗原结合片段,其中,所述肿瘤抗原为CD20、BCMA或GPC3。
8.根据权利要求1或2所述的双特异性抗体或其抗原结合片段,其中,所述双特异抗体的Fc部分具有Ser228Pro、Leu235Glu和Pro329Ala突变。
9.编码根据权利要求1-8任一项所述的双特异性抗体或其抗原结合片段的核酸。
10.根据权利要求9所述的核酸,其中,所述第二抗原结合部分的第二轻链的编码核酸为核苷酸序列SEQ ID NO: 59,和所述第二抗原结合部分的第二重链的编码核酸为核苷酸序列SEQ ID NO: 61;或者
所述第二抗原结合部分的第二轻链的编码核酸为核苷酸序列SEQ ID NO: 67,和所述第二抗原结合部分的第二重链的编码核酸为核苷酸序列SEQ ID NO: 69。
11.含有权利要求9或10所述核酸的载体。
12.含有权利要求9或10所述的核酸或权利要求11所述载体的细胞。
13.一种组合物,其包含权利要求1-8任一项所述的双特异性抗体或其抗原结合片段、权利要求9或10所述的核酸、权利要求11所述的载体和/或权利要求12所述的细胞。
14.一种抗体-药物偶联物,其包含共价附着至治疗部分的权利要求1-8任一项所述的双特异性抗体或其抗原结合片段。
15.根据权利要求14所述的抗体-药物偶联物,其中,所述治疗部分为细胞毒性部分、化疗剂、细胞因子、免疫抑制剂、免疫刺激剂、裂解肽或放射性同位素。
16.根据权利要求15所述的抗体-药物偶联物,其中,所述细胞毒性部分选自以下:
紫杉醇;细胞松弛素B;短杆菌肽D;溴化乙锭;吐根碱;丝裂霉素;依托泊苷;替尼泊苷;长春新碱;长春碱;秋水仙碱;多柔比星;柔红霉素;二羟基蒽二酮;美登素;抗有丝分裂剂;海兔毒素10或15;伊立替康;米托蒽醌;光辉霉素;放线菌素D;1-脱氢睾酮;糖皮质激素;普鲁卡因;丁卡因;利多卡因;普萘洛尔;嘌呤霉素;卡奇霉素;抗代谢药;
二氯甲基二乙胺、硫代嘌呤、苯丁酸氮芥、美法仑、卡莫司汀(BSNU)、洛莫司汀(CCNU)、环磷酰胺、白消安、二溴甘露醇、链脲佐菌素、达卡巴嗪(DTIC)、丙卡巴嗪;
铂类衍生物;多卡霉素A、多卡霉素SA、雷切霉素(CC-1065);
放线菌素、博来霉素、伊达比星、光霉素、米托蒽醌、普力霉素、安定霉素(AMC);吡咯并[2,1-c][1,4]-苯并二氮杂卓(PDB);
白喉毒素及相关分子、蓖麻毒素、霍乱毒素、志贺样毒素、百日咳毒素、破伤风毒素、大豆Bowman-Birk蛋白酶抑制剂、假单胞菌外毒素、阿罗林、皂草素、蒴莲根毒素、胶凝蛋白、相思豆毒素A链、蒴莲根毒素A链、α-sarcin、PAPI、PAPII、PAP-S泻果素、巴豆毒素、肥阜草(sapaonaria officinalis)抑制剂、白树毒素、局限曲菌素、酚霉素、依诺霉素毒素;核糖核酸酶(RNase);DNase I、葡萄球菌内毒素A;商陆抗病毒蛋白;假单胞菌内毒素;
所述细胞因子选自IL-2、IL-4、IL-6、IL-7、IL-10、IL-12、IL-13、IL-15、IL-18、IL-23、IL-24、IL-27、IL-28a、IL-28b、IL-29、KGF、IFNa、IFN3、IFNy、GM-CSF、CD40L、Flt3配体、安西司亭和TNFa;
所述放射性同位素选自3H、14C、15N、35S、67Cu、90Y、99Tc、125I、131I、186Re、188Re、211At、212Bi、212Pb、213Bi、225Ac和227Th。
17.根据权利要求16所述的抗体-药物偶联物,其中,
所述抗有丝分裂剂为单甲基奥瑞他汀E或F;
所述抗代谢药为甲氨喋呤、6巯基嘌呤、6硫鸟嘌呤、阿糖胞苷、氟达拉滨、5氟尿嘧啶、癸二嗪、羟基脲、天冬酰胺酶、吉西他滨或克拉屈滨;
所述铂类衍生物为顺铂或卡铂;
所述白喉毒素及相关分子为白喉A链及其活性片段和杂合分子;
所述蓖麻毒素为蓖麻毒素A或去糖基化蓖麻毒素A链毒素;
所述志贺样毒素为SLT I、SLT II、SLT IIV、LT毒素、C3毒素或志贺毒素。
18.一种试剂盒,其含其包含权利要求1-8任一项所述的双特异性抗体或其抗原结合片段、权利要求9或10所述的核酸、权利要求11所述的载体、或权利要求12所述的细胞、权利要求13所述的组合物和/或权利要求14-17任一项所述的抗体-药物偶联物。
19.含权利要求1-8任一项所述的双特异性抗体或其抗原结合片段、权利要求9或10所述的核酸、权利要求11所述的载体、或权利要求12所述的细胞、权利要求13所述的组合物和/或权利要求14-17任一项所述的抗体-药物偶联物在制备用于诊断、治疗或预防与肿瘤抗原相关疾病药物或试剂盒中的用途。
20.根据权利要求19所述的用途,其中,所述肿瘤抗原为CD20,所述肿瘤抗原相关疾病为与CD20相关疾病;与CD20相关的疾病包括B细胞疾病,所述疾病选自非霍奇金淋巴瘤(NHL),急性淋巴细胞性白血病(ALL),慢性淋巴细胞性白血病(CLL),弥漫性大B细胞淋巴瘤(DLBCL),滤泡性淋巴瘤(FL),套细胞淋巴瘤(MCL),边缘区淋巴瘤(MZL),以及多发性骨髓瘤(MM)和霍奇金淋巴瘤(HL);或者
所述肿瘤抗原为BCMA,所述肿瘤抗原相关疾病为与BCMA相关疾病;与BCMA相关的疾病是B-细胞相关癌症,其选自多发性骨髓瘤、恶性浆细胞瘤、霍奇金淋巴瘤、结节性淋巴细胞为主的霍奇金淋巴瘤、Kahler’s病和骨髓性白血病、浆细胞白血病、浆细胞瘤、B-细胞幼淋巴细胞白血病、毛细胞白血病、B-细胞非霍奇金淋巴瘤(NHL)、急性髓性白血病(AML)、慢性淋巴细胞白血病(CLL)、急性淋巴细胞白血病(ALL)、慢性髓性白血病(CML)、滤泡性淋巴瘤、伯基特淋巴瘤、边缘区淋巴瘤、套细胞淋巴瘤、大细胞淋巴瘤、前体B-淋巴细胞淋巴瘤、髓性白血病、瓦尔登斯特伦巨球蛋白血症、弥漫性大B细胞淋巴瘤、滤泡性淋巴瘤、边缘区淋巴瘤、粘膜相关淋巴组织淋巴瘤、小细胞淋巴细胞性淋巴瘤、套细胞淋巴瘤、伯基特淋巴瘤、原发性纵隔(胸腺)大B细胞淋巴瘤、淋巴浆细胞淋巴瘤、瓦尔登斯特伦巨球蛋白血症、淋巴结边缘区B细胞淋巴瘤、脾边缘区淋巴瘤、血管内大B-细胞淋巴瘤、原发性渗出性淋巴瘤、淋巴瘤样肉芽肿病、富含T细胞/组织细胞的大B-细胞淋巴瘤、原发性中枢神经系统淋巴瘤、原发性皮肤弥漫性大B-细胞淋巴瘤(腿型)、老年人EBV阳性弥漫性大B-细胞淋巴瘤、炎症相关的弥漫性大B-细胞淋巴瘤、血管内大B-细胞淋巴瘤、ALK阳性大B-细胞淋巴瘤、浆母细胞淋巴瘤、HHV8相关的多中心Castleman病中产生的大B-细胞淋巴瘤、未分类的具有弥漫性大B-细胞淋巴瘤和伯基特淋巴瘤中间特征的B-细胞淋巴瘤、未分类的具有弥漫性大B-细胞淋巴瘤和经典霍奇金淋巴瘤中间特征的B-细胞淋巴瘤以及其他B-细胞相关淋巴瘤;或者,所述B细胞疾病是B细胞障碍;浆细胞障碍选自:多发性骨髓瘤、浆细胞瘤、浆细胞白血病、巨球蛋白血症、淀粉样变性、华氏巨球蛋白血症、孤立性骨浆细胞瘤、髓外浆细胞瘤、骨硬化性骨髓瘤、重链病、意义不明确的单克隆丙种球蛋白病以及郁积型多发性骨髓瘤;,所述疾病是系统性红斑性狼疮或类风湿性关节炎;或者
所述肿瘤抗原为GPC3,所述肿瘤抗原相关疾病为与GPC3相关疾病;与GPC3相关的疾病包括肿瘤为GPC3阳性肝癌、GPC3阳性肝细胞癌、GPC3阳性胰腺癌、GPC3阳性肺癌、GPC3阳性结肠癌、GPC3阳性乳腺癌、GPC3阳性前列腺癌、GPC3阳性白血病或GPC3阳性淋巴瘤。
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CN114573703A (zh) * | 2020-12-02 | 2022-06-03 | 康诺亚生物医药科技(成都)有限公司 | 一种t细胞衔接器治疗剂的开发和应用 |
AU2022233285A1 (en) | 2021-03-09 | 2023-10-19 | Cdr-Life Ag | Mage-a4 peptide-mhc antigen binding proteins |
WO2024056758A1 (en) | 2022-09-14 | 2024-03-21 | Cdr-Life Ag | Mage-a4 peptide dual t cell engagers |
WO2024140980A1 (zh) * | 2022-12-30 | 2024-07-04 | 上药生物治疗(香港)有限公司 | 表达趋化因子受体的细胞及其用途 |
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US5780588A (en) | 1993-01-26 | 1998-07-14 | Arizona Board Of Regents | Elucidation and synthesis of selected pentapeptides |
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PT2489364E (pt) | 2003-11-06 | 2015-04-16 | Seattle Genetics Inc | Compostos de monometilvalina conjugados com anticorpos |
AU2005218642B2 (en) | 2004-03-02 | 2011-04-28 | Seagen Inc. | Partially loaded antibodies and methods of their conjugation |
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LT3095871T (lt) | 2010-02-08 | 2019-05-27 | Regeneron Pharmaceuticals, Inc. | Bendros lengvosios grandinės pelė |
EP2635310A2 (en) | 2010-11-05 | 2013-09-11 | Rinat Neuroscience Corp. | Engineered polypeptide conjugates and methods for making thereof using transglutaminase |
CN105121467B (zh) * | 2012-12-03 | 2019-07-05 | 诺夫免疫股份有限公司 | 抗cd47抗体及其使用方法 |
MA40764A (fr) * | 2014-09-26 | 2017-08-01 | Chugai Pharmaceutical Co Ltd | Agent thérapeutique induisant une cytotoxicité |
EA201891495A1 (ru) | 2015-12-22 | 2018-11-30 | Ридженерон Фармасьютикалз, Инк. | Биспецифические анти-cd20/анти-cd3 антитела для лечения острого лимфобластного лейкоза |
CN111201031B (zh) * | 2017-08-25 | 2024-11-01 | 诺夫免疫股份有限公司 | 抗CD47 x抗间皮素抗体及其使用方法 |
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CN114573703A (zh) * | 2020-12-02 | 2022-06-03 | 康诺亚生物医药科技(成都)有限公司 | 一种t细胞衔接器治疗剂的开发和应用 |
CN114573702A (zh) * | 2020-12-02 | 2022-06-03 | 康诺亚生物医药科技(成都)有限公司 | 一种新型肿瘤衔接器治疗药物的开发和应用 |
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