CN1297901A - Human membrane binding protein 37 as one new kind of polypeptide and polynucleotides encoding this polypeptide - Google Patents

Abstract

The present invention discloses a novel polypeptide, human membrane-bound protein 37, polynucleotides encoding this polypeptide and DNA recombination process to produce the polypeptide. The present invention also discloses the method of applying the polypeptide in treating various diseases, such as malignant tumor, nosohemia, HIV infection, immunological diseases and inflammations. The present invention also discloses the antagonist resisting the polypeptide and its treatment effect. The present invention also discloses the application of the polynucleotides encoding this polypeptide.

Description

The polynucleotide of a kind of new polypeptide--human membrane binding protein white 37 and this peptide species of coding

The invention belongs to biological technical field, specifically, the invention describes a kind of new polypeptide-human embrane-associated protein 37, and the polynucleotide sequence of this polypeptide of encoding.The invention still further relates to the preparation method and the application of these polynucleotide and polypeptide.

Play an important role in the vital movement that is adjusted in cell of physiological process around the cytolemma.Many albumen have participated in this class and have regulated.Wherein a proteinoid causes various secondary path thus with the different bonding states that change itself and cytolemma of stimulus signal.The calcium ion dependent form embrane-associated protein proteinoid that comes to this.Regulation and control calcium ion and membrane phospholipid interactional two kinds of protein structures, additional fold structure and C2 structure have been studied now in more detail.

The C2 structure does not have tangible catalytic activity.The interaction of itself and film can cause the modulation of other embrane-associated proteins such as Phospholipid hydrolase.Its a kind of in addition " divalence " activity, that is: it can interconnect two membrane structures and form a mixture, and these two membrane structures can merge under the effect of other stimulus signal.

Had been found that now several albumen have the C2 structure, for example: protein kinase C, synaptotagmin, rabphilin, Doc2, Munc13, and the Copines of latest find.Copines albumen comprises two C2 structures, and is quite conservative, plant, discovery arranged all in animal and the ciliate, illustrates that it plays an important role in eukaryotic cell.In the experiment in vitro, the self aggregation phenomenon can take place in Copines albumen under the calcium ion existence condition, also can combine with the vesicle that is rich in phosphatidylserine.This phenomenon is that calcium ion is special.Copines albumen also has C2 structure " divalence " characteristic, two membrane structures can be combined.Copines albumen may be also relevant with the cytolemma matter transportation.The Copines albumen of finding in brain is according to the plasticity-of the concentration adjustment central nervous system nerve synapse of the calcium ion in the kytoplasm.

Copines protein expression not normal meeting causing film surface mass transportation is disorderly, makes the cytotrophy supply undesired, and metabolic waste discharges cell and hinder, thereby causes malnutrition, diseases such as tissue necrosis, local edema; This albumen is expressed the not normal secretion materials such as hormone that also can cause and can not in time be secreted to born of the same parents and cause diseases such as various endocrine regulations in secretory cell; The not normal function that can upset the impulsion of nerve synapse affective neuron of this protein expression causes a series of in central nervous system.Simultaneously, the transsynaptic plasticity-of Copines protein expression not normal meeting DIABLO in central nervous system, thus cause hypomnesis.

The present invention has 99% homology with the Copines I albumen of finding on protein level in the people, thus think that gene of the present invention is the gene of a coding and Copines I protein similar, and have similar biological function.Called after human membrane binding protein white 37 of the present invention.

Because white 37 albumen of human membrane binding protein play an important role in regulating body critical functions such as cell fission and fetal development as mentioned above, and believe and relate to a large amount of albumen in these regulate processes, thereby need to identify white 37 albumen of human membrane binding protein of more these processes of participation in this area always, particularly identify this proteic aminoacid sequence.The separation of new person's embrane-associated protein 37 protein coding genes also provides the foundation for determining the effect of this albumen under healthy and morbid state.This albumen may constitute the basis of exploitation medical diagnosis on disease and/or curative, and it is very important therefore separating its coding DNA.

An object of the present invention is to provide isolating new polypeptide--human membrane binding protein white 37 with and fragment, analogue and derivative.

Another object of the present invention provides the polynucleotide of this polypeptide of coding.

Another object of the present invention provides the recombinant vectors of the polynucleotide that contain the human membrane binding protein white 37 of encoding.

Another object of the present invention provides the genetically engineered host cell of the polynucleotide that contain the human membrane binding protein white 37 of encoding.

Another object of the present invention provides the method for producing human membrane binding protein white 37.

Another object of the present invention provides at polypeptide of the present invention--the antibody of human membrane binding protein white 37.

Another object of the present invention has provided at polypeptide of the present invention--simulated compound, antagonist, agonist, the inhibitor of human membrane binding protein white 37.

Another object of the present invention provides the method for the unusual relevant disease of diagnoses and treatment and human membrane binding protein white 37.

The present invention relates to a kind of isolated polypeptide, this polypeptide is the people source, and it comprises: polypeptide or its examples of conservative variations, bioactive fragment or derivative with SEQ ID No.2 aminoacid sequence.Preferably, this polypeptide is the polypeptide with SEQ ID NO:2 aminoacid sequence.

The invention still further relates to a kind of isolating polynucleotide, it comprises a kind of nucleotide sequence or its variant that is selected from down group:

(a) coding has the polynucleotide of the polypeptide of SEQ ID No.2 aminoacid sequence;

(b) with polynucleotide (a) complementary polynucleotide;

(c) with (a) or polynucleotide sequence (b) have the polynucleotide of at least 99% homogeny.

More preferably, the sequence of these polynucleotide is be selected from down group a kind of: the sequence that (a) has 399-1709 position among the SEQ ID NO:1; (b) has the sequence of 1-2584 position among the SEQ ID NO:1.

The present invention relates to a kind of carrier that contains polynucleotide of the present invention, particularly expression vector in addition; The host cell that this carrier of a kind of usefulness is genetically engineered comprises the host cell of conversion, transduction or transfection; A kind of method for preparing polypeptide of the present invention of cultivating described host cell and reclaiming expression product that comprises.

The invention still further relates to a kind of can with polypeptid specificity bonded antibody of the present invention.

The invention still further relates to a kind of simulation, activation, antagonism of screening or suppress the method for the compound of white 37 protein-actives of human membrane binding protein, it comprises and utilizes polypeptide of the present invention.The invention still further relates to the compound that obtains with this method.

The invention still further relates to a kind of vitro detection and express the relevant disease or the method for disease susceptibility with white 37 abnormal proteins of human membrane binding protein, comprise the sudden change in polypeptide described in the detection of biological sample or its coded polynucleotide sequence, perhaps the amount or the biological activity of polypeptide of the present invention in the detection of biological sample.

The present invention also relates to a kind of pharmaceutical composition, it contains polypeptide of the present invention or its stand-in, activator, antagonist or inhibitor and pharmaceutically acceptable carrier.

The invention still further relates to polypeptide of the present invention and/or polynucleotide and be used for the treatment of cancer, developmental character disease or immunological disease or other purposes owing to the medicine of white 37 diseases that abnormal expression causes of human membrane binding protein in preparation.

Others of the present invention are because disclosing of the technology of this paper is conspicuous to those skilled in the art.

The following term of using in this specification sheets and claims has following implication unless stated otherwise:

" nucleotide sequence " is meant oligonucleotide, Nucleotide or polynucleotide and fragment or part, also can refer to genome or synthetic DNA or RNA, and they can be strand or two strands, represent sense strand or antisense strand.Similarly, term " aminoacid sequence " is meant oligopeptides, peptide, polypeptide or protein sequence and fragment or part.When " aminoacid sequence " among the present invention related to a kind of aminoacid sequence of naturally occurring protein molecule, this " " or " protein " did not mean that aminoacid sequence is restricted to the complete natural amino acid relevant with described protein molecule polypeptide.

Protein or polynucleotide " variant " are meant a kind of polynucleotide sequence that has the aminoacid sequence of one or more amino acid or Nucleotide change or encode it.Described change can comprise disappearance, insertion or the replacement of amino acid in aminoacid sequence or the nucleotide sequence or Nucleotide.Variant can have " conservative property " and change, and wherein the amino acid of Ti Huaning has structure or the chemical property similar with original acid, as replacing Isoleucine with leucine.Variant also can have non-conservation and change, as replacing glycine with tryptophane.

" disappearance " is meant the disappearance of in aminoacid sequence or nucleotide sequence one or more amino acid or Nucleotide.

" insertion " or " interpolation " is meant that the change in aminoacid sequence or nucleotide sequence causes comparing the increase of one or more amino acid or Nucleotide with naturally occurring molecule." replacement " is meant by different amino acid or Nucleotide and replaces one or more amino acid or Nucleotide.

" biological activity " is meant the protein of structure, regulation and control or biochemical function with natural molecule.Similarly, term " immunologic competence " be meant natural, reorganization or synthetic protein and fragment thereof in suitable animal or cell, induce specific immune response and with specific antibody bonded ability.

" agonist " is meant when combining with human membrane binding protein white 37, thereby a kind of this protein that causes changes the molecule of regulating this protein active.Agonist can comprise protein, nucleic acid, carbohydrate or any other can be in conjunction with the molecule of human membrane binding protein white 37.

" antagonist " or " inhibition " is meant when combining with human membrane binding protein white 37, a kind of sealing or the biologic activity of mediator's embrane-associated protein 37 or the molecule of immunologic competence.Antagonist and inhibition can comprise protein, nucleic acid, carbohydrate or any other can be in conjunction with the molecule of human membrane binding protein white 37.

" adjusting " is meant that the function of human membrane binding protein white 37 changes, and comprises the change of any other biological property, function or the immune property of the change of the rising of protein active or reduction, binding characteristic and human membrane binding protein white 37.

The pure basically ＂ of ＂ is meant and is substantially free of natural relative other albumen, lipid, carbohydrate or other material.Those skilled in the art can use the purified technology of protein purifying human membrane binding protein white 37 of standard.Basically pure human membrane binding protein white 37 can produce single master tape on the irreducibility polyacrylamide gel.The purity available amino end acid sequence of white 37 polypeptide of human membrane binding protein is analyzed.

" complementary " or " complementation " is meant under salt concn that allows and temperature condition by the natural combination of the polynucleotide of base pairing.For example, sequence " C-T-G-A " can combine with complementary sequence " G-A-C-T ".Complementation between two single chain molecules can be part or whole.Complementary degree between the nucleic acid chains has a significant effect for efficient of hybridizing between the nucleic acid chains and intensity.

" homology " is meant the complementary degree, can be portion homologous or complete homology." portion homologous " is meant a kind of part complementary sequence, and it can partly suppress the hybridization of complete complementary sequence and target nucleic acid at least.The inhibition of this hybridization can detect by hybridizing (Southern trace or Northern trace etc.) under the condition that reduces in the severity degree.Basically homologous sequence or hybridization probe can compete and suppress complete homologous sequence and target sequence the condition that reduces of severity degree under combine.This does not mean the conditions permit non-specific binding that the severity degree reduces because the conditional request two sequences that the severity degree reduces mutual be combined into specificity or selectivity interacts.

" homogeny percentage " be meant two or more amino acid or nucleotide sequence relatively in the same or analogous percentage of sequence.The available electron method is measured the homogeny percentage, as passing through MEGALIGN program (Lasergenesoftware package, DNASTAR, Inc., Madison Wis.).The MEGALIGN program can compare two or more sequences (Higgins, D.G. and P.M.Sharp (1988) Gene 73:237-244) according to diverse ways such as Cluster method.The Cluster method is organized the series arrangement cluster by checking the distance between all pairings with each.Then with each bunch with in pairs or become set of dispense.Homogeny percentage between two aminoacid sequences such as sequence A and the sequence B calculates by following formula:

The residue number of mating between sequence A and the sequence B

100

Interval residue number in the residue number-sequence B of interval in the residue number-sequence A of sequence A

Also can be by the Cluster method or with the homogeny percentage (Hein J., (1990) Methods in emzumology 183:62 5-645) between known method in this area such as the Jotun Hein mensuration nucleotide sequence.

" similarity " is meant the degree that the identical or conservative property of corresponding position amino-acid residue when arranging contrast between the aminoacid sequence replaces.For example be used for amino acid that conservative property replaces, electronegative amino acid can comprise aspartic acid and L-glutamic acid; Positively charged amino acid can comprise Methionin and arginine; Having uncharged head group has similar hydrophilic amino acid can comprise leucine, Isoleucine and Xie Ansuan; Glycine and L-Ala; L-asparagine and glutamine; Serine and Threonine; Phenylalanine and tyrosine.

" antisense " is meant and specific DNA or RNA sequence complementary nucleotide sequence." antisense strand " is meant and " sense strand " complementary nucleic acid chains.

" derivative " is meant HFP or encodes its chemical modification object of nucleic acid.This chemical modification object can be with alkyl, acyl group or the amino hydrogen atom of replacing.The nucleic acid derivative codified keeps the polypeptide of the main biological characteristics of natural molecule.

" antibody " is meant complete antibody molecule and fragment thereof, as Fa, F (ab ') ₂And Fv, its energy specificity is in conjunction with the antigenic determinant of human membrane binding protein white 37.

" humanized antibody " is meant that the aminoacid sequence in non-antigen binding domain territory is replaced and becomes more similar to people's antibody, but still keep original in active antibody.

" isolating " speech refers to material is shifted out among its original environment (for example, if spontaneous its natural surroundings that just refers to).Such as it is exactly not to be separated that spontaneous polynucleotide or polypeptide are present in the Live Animals, but same polynucleotide or polypeptide with some or all in natural system with it the material of coexistence separately be exactly isolating.Such polynucleotide may be the parts of a certain carrier, the part that also possible such polynucleotide or polypeptide are a certain composition.Since carrier or composition are not the compositions of its natural surroundings, they remain isolating.

As used herein, " isolating " are meant that material separates (if natural substance, primal environment promptly is a natural surroundings) from its primal environment.Do not have separation and purification as polynucleotide under the native state in the active somatic cell and polypeptide, but same polynucleotide or polypeptide as from native state with in other materials that exist separately, then for separation and purification.

As used herein, " isolating human membrane binding protein white 37 " is meant that human membrane binding protein white 37 is substantially free of natural relative other albumen, lipid, carbohydrate or other material.Those skilled in the art can use the purified technology of protein purifying human membrane binding protein white 37 of standard.Basically pure polypeptide can produce single master tape on non-reduced polyacrylamide gel.The purity of white 37 polypeptide of human membrane binding protein can be used amino acid sequence analysis.

The invention provides a kind of new polypeptide--human membrane binding protein is white 37, and it is made up of the aminoacid sequence shown in the SEQ ID NO:2 basically.Polypeptide of the present invention can be recombinant polypeptide, natural polypeptides, synthetic polypeptide, preferred recombinant polypeptide.Polypeptide of the present invention can be the product of natural purifying, or the product of chemosynthesis, or uses recombinant technology to produce from protokaryon or eucaryon host (for example, bacterium, yeast, higher plant, insect and mammalian cell).The host used according to the recombinant production scheme, polypeptide of the present invention can be glycosylated, maybe can be nonglycosylated.Polypeptide of the present invention also can comprise or not comprise initial methionine residues.

The present invention also comprises fragment, derivative and the analogue of human membrane binding protein white 37.As used herein, term " fragment ", " derivative " and " analogue " are meant biological function or the active polypeptide that keeps human membrane binding protein of the present invention white 37 identical basically.The fragment of polypeptide of the present invention, derivative or analogue can be: (I) is a kind of like this, wherein one or more amino-acid residues are replaced by conservative or non-conservative amino acid residues (preferably conservative amino acid residues), and the amino acid that replaces can be also can not encoded by genetic codon; Perhaps (II) is a kind of like this, and certain group on wherein one or more amino-acid residues is replaced by other group and comprises substituting group; Perhaps (III) is a kind of like this, and wherein mature polypeptide and another kind of compound (such as the compound that prolongs the polypeptide transformation period, for example polyoxyethylene glycol) merge; Perhaps (IV) is a kind of like this, wherein additional aminoacid sequence is integrated into mature polypeptide and the peptide sequence that forms (as leader sequence or secretion sequence or be used for the sequence or the proteinogen sequence of this polypeptide of purifying) by the elaboration of this paper, such fragment, derivative and analogue are considered within those skilled in the art's ken.

The invention provides isolating nucleic acid (polynucleotide), substantially the polynucleotide that have a polypeptide of SEQ ID NO:2 aminoacid sequence by coding are formed.Polynucleotide sequence of the present invention comprises the nucleotide sequence of SEQ ID NO:1.Polynucleotide of the present invention are to find from the cDNA library of people's fetal brain tissue.The polynucleotide sequence total length that it comprises is 2584 bases, its open reading frame (699-1709) 336 amino acid of having encoded.Find relatively that according to amino acid sequence homologous this polypeptide and copines I albumen have 99% homology, deducibility goes out the 26S Proteasome Structure and Function that this human membrane binding protein white 37 has copines I protein similar.

Polynucleotide of the present invention can be dna form or rna form.Dna form comprises the DNA of cDNA, genomic dna or synthetic.DNA can be strand or double-stranded.DNA can be coding strand or noncoding strand.The coding region sequence of encoding mature polypeptide can be identical with the coding region sequence shown in the SEQ ID NO:1 or the varient of degeneracy.As used herein, " varient of degeneracy " are meant that in the present invention coding has protein or the polypeptide of SEQ ID NO:2, but with the differentiated nucleotide sequence of coding region sequence shown in the SEQ ID NO:1.

The polynucleotide of the mature polypeptide of coding SEQ ID NO:2 comprise: the encoding sequence that has only mature polypeptide; The encoding sequence of mature polypeptide and various additional code sequence; Encoding sequence of mature polypeptide (with optional additional code sequence) and non-coding sequence.

Term " polynucleotide of coded polypeptide " is meant polynucleotide that comprise this polypeptide of encoding and the polynucleotide that comprise additional code and/or non-coding sequence.

The invention still further relates to the varient of foregoing description polynucleotide, its coding has the polypeptide of identical aminoacid sequence or segment, analogue and the derivative of polypeptide with the present invention.The varient of these polynucleotide can be the allelic variant of natural generation or the varient that non-natural takes place.These nucleotide diversity bodies comprise and replace varient, deletion mutation body and insert varient.As known in the art, allelic variant is the replacement form of polynucleotide, and it may be replacement, disappearance or the insertion of one or more Nucleotide, but can be from not changing the function of its encoded polypeptides in fact.

The invention still further relates to and the polynucleotide (have at least 50% between two sequences, preferably have 70% homogeny) of sequence hybridization described above.The present invention be more particularly directed under stringent condition and the interfertile polynucleotide of polynucleotide of the present invention.In the present invention, " stringent condition " is meant: (1) than hybridization under low ionic strength and the comparatively high temps and wash-out, as 0.2 * SSC, and 0.1%SDS, 60 ℃; Or (2) hybridization the time adds and to use denaturing agent, as 50% (v/v) methane amide, 0.1% calf serum/0.1%Ficoll, 42 ℃ etc.; Or (3) only at the homogeny between the two sequences at least more than 95%, be more preferably 97% and just hybridize when above.And the polypeptide of interfertile polynucleotide encoding has identical biological function and activity with the mature polypeptide shown in the SEQ ID NO:2.

The invention still further relates to nucleic acid fragment with sequence hybridization described above.As used herein, " nucleic acid fragment " length contain 10 Nucleotide at least, better be 20-30 Nucleotide at least, be more preferably 50-60 Nucleotide at least, preferably more than at least 100 Nucleotide.Nucleic acid fragment also can be used for the amplification technique (as PCR) of nucleic acid to determine and/or to separate the polynucleotide of coding human membrane binding protein white 37.

Polypeptide among the present invention and polynucleotide preferably provide with isolating form, more preferably are purified to homogeneous.

The special polynucleotide sequence of coding human membrane binding protein white 37 of the present invention can obtain with several different methods.For example, separate polynucleotide with hybridization technique well known in the art.These technology including, but not limited to: 1) with probe and genome or the hybridization of cDNA library to detect homologous polynucleotide sequence and 2) antibody screening of expression library to be to detect the polynucleotide passage of the clone with common structure feature.

Sequence dna fragment of the present invention also can obtain with following method: 1) separate double chain DNA sequence from genomic dna; 2) the chemical synthesising DNA sequence is to obtain the double-stranded DNA of described polypeptide.

In the above-mentioned method of mentioning, isolation of genomic DNA is least commonly used.The direct chemical of dna sequence dna is synthetic to be the method for often selecting for use.The more frequent method of selecting for use is the separation of cDNA sequence.The standard method that separates interested cDNA is from the donorcells separating mRNA of this gene of high expression level and carries out reverse transcription, forms plasmid or phage cDNA library.Extract the existing multiple proven technique of method of mRNA, test kit also can obtain (Qiagene) from commercial channels.And the construction cDNA library also is usual method (Sambrok, et al., MolecularCloning, A Laboratory Manual, Cold Spring Harbor Laboratory.New York, 1989).Also can obtain the cDNA library of commercial offers, as the different cDNA library of Clontech company.When being used in combination the polymeric enzyme reaction technology, even few expression product also can be cloned.

Available ordinary method is screened gene of the present invention from these cDNA libraries.These methods include, but is not limited to: (1) DNA-DNA or DNA-RNA hybridization; (2) appearance of marker gene function or forfeiture; (3) level of the transcript of mensuration human membrane binding protein white 37; (4), detect the protein product of genetic expression by immunological technique or mensuration biologic activity.Aforesaid method can singly be used, but also several different methods combined utilization.

In (1) kind method, hybridizing used probe is and any a part of homology of polynucleotide of the present invention that at least 10 Nucleotide of its length better are at least 30 Nucleotide, are more preferably at least 50 Nucleotide, preferably at least 100 Nucleotide.In addition, within 2000 Nucleotide, preferable is within 1000 Nucleotide to the length of probe usually.Probe used herein is the dna sequence dna of chemosynthesis on the basis of gene order information of the present invention normally.Gene of the present invention itself or fragment are certainly as probe.The mark of dna probe can be used radio isotope, fluorescein or enzyme (as alkaline phosphatase) etc.

In (4) kind method, detect the protein product of white 37 genetic expressions of human membrane binding protein and can use immunological technique such as Western blotting, radioimmunoprecipitation, enzyme-linked immunosorbent assay (ELISA) etc.

Use method (Saiki, the et al.Science1985 of round pcr DNA amplification/RNA; 230:1350-1354) be optimized for acquisition gene of the present invention.When particularly being difficult to from the library, obtain the cDNA of total length, can preferably use RACE method (the terminal rapid amplifying method of RACE-cDNA), the primer that is used for PCR can suitably be selected according to polynucleotide sequence information of the present invention disclosed herein, and available ordinary method is synthetic.Available ordinary method is as the DNA/RNA fragment by gel electrophoresis separation and purifying amplification.

The gene of the present invention that obtains as mentioned above, perhaps the polynucleotide sequence of various dna fragmentations etc. can with ordinary method such as dideoxy chain termination (Sanger et al.PNAS, 1977,74:5463-5467) measure.This class polynucleotide sequence is measured also available commercial sequencing kit etc.In order to obtain the cDNA sequence of total length, order-checking need be carried out repeatedly.Sometimes need to measure a plurality of clones' cDNA sequence, just can be spliced into the cDNA sequence of total length.

The present invention also relates to comprise the carrier of polynucleotide of the present invention, and the host cell that produces through genetically engineered with the carrier of the present invention or embrane-associated protein 37 encoding sequences of directly choosing, and the method that produces polypeptide of the present invention through recombinant technology.

Among the present invention, the polynucleotide sequence of coding human membrane binding protein white 37 can be inserted in the carrier, contains the recombinant vectors of polynucleotide of the present invention with formation.Term " carrier " refers to that bacterial plasmid well known in the art, phage, yeast plasmid, vegetable cell virus, mammalian cell virus are as adenovirus, retrovirus or other carrier.The carrier of Shi Yonging includes but not limited in the present invention: and the expression vector based on the T7 promotor of in bacterium, expressing (Rosenberg, et al.Gene, 1987,56:125); The pMSXND expression vector of in mammalian cell, expressing (Lee and Nathans, J Bio Chem.263:3521,1988) and at the carrier that derives from baculovirus of expressed in insect cells.In a word, as long as can duplicate in host and stablize, any plasmid and carrier may be used to make up recombinant expression vector.A key character of expression vector is to contain replication origin, promotor, marker gene and translational control element usually.

Method well-known to those having ordinary skill in the art can be used to make up and contains the encode dna sequence dna of human membrane binding protein white 37 and the expression vector of suitable transcribing/translational control element.These methods comprise (Sambroook, et al.Molecular Cloning, a LaboratoryManual, cold Spring Harbor Laboratory.New York, 1989) such as extracorporeal recombinant DNA technology, DNA synthetic technology, the interior recombinant technologys of body.Described dna sequence dna can effectively be connected on the suitable promotor in the expression vector, and is synthetic to instruct mRNA.The representative example of these promotors has: colibacillary lac or trp promotor; The PL promotor of lambda particles phage; Eukaryotic promoter comprises LTRs and some other known may command gene expression promoter in prokaryotic cell prokaryocyte or eukaryotic cell or its virus of CMV immediate early promoter, HSV thymidine kinase promoter, early stage and late period SV40 promotor, retrovirus.Expression vector also comprises ribosome bind site that translation initiation is used and transcription terminator etc.Inserting enhancer sequence in carrier will make its transcribing in higher eucaryotic cells be enhanced.Enhanser is the cis acting factor that DNA expresses, and nearly 10 to 300 base pairs act on promotor transcribing with enhancing gene usually.Can for example be included in the SV40 enhanser of 100 to 270 base pairs of replication origin side in late period one, at the polyoma enhanser of replication origin side in late period one and adenovirus enhanser etc.

In addition, expression vector preferably comprises one or more selected markers, to be provided for selecting the phenotypic character of transformed host cells, cultivate Tetrahydrofolate dehydrogenase, neomycin resistance and the green fluorescent protein (GFP) of usefulness as eukaryotic cell, or be used for colibacillary tsiklomitsin or amicillin resistance etc.

Persons skilled in the art all know how to select appropriate carriers/transcriptional regulatory element (as promotor, enhanser etc.) and selected marker.

Among the present invention, the polynucleotide of coding human membrane binding protein white 37 or the recombinant vectors that contains these polynucleotide can transform or transduce into host cell, contain the genetically engineered host cell of these polynucleotide or recombinant vectors with formation.Term " host cell " refers to prokaryotic cell prokaryocyte, as bacterial cell; Or eukaryotic cell such as low, as yeast cell; Or higher eucaryotic cells, as mammalian cell.Representative example has: intestinal bacteria, streptomyces; Bacterial cell such as Salmonella typhimurium; Fungal cell such as yeast; Vegetable cell; Insect cell such as fruit bat S2 or Sf9; Zooblast such as CHO, COS or Bowes melanoma cells etc.

Can carry out with routine techniques well known to those skilled in the art with dna sequence dna of the present invention or the recombinant vectors transformed host cell that contains described dna sequence dna.When the host was prokaryotic organism such as intestinal bacteria, the competent cell that can absorb DNA can be used CaCl in exponential growth after date results ₂Method is handled, and used step is well-known in this area.Alternative is to use MgCl ₂If desired, transforming also the method for available electroporation carries out.When the host is an eukaryote, can select following DNA transfection method for use: coprecipitation of calcium phosphate method, perhaps conventional mechanical method such as microinjection, electroporation, liposome packing etc.

By the recombinant DNA technology of routine, utilize polynucleotide sequence of the present invention to can be used to express or produce white 37 (Science, 1984 of human membrane binding protein of reorganization; 224:1431).In general following steps are arranged:

(1). with the polynucleotide (or varient) of everybody embrane-associated protein 37 of coding of the present invention, or transform or the transduction proper host cell with the recombinant expression vector that contains these polynucleotide;

(2). in suitable medium, cultivate host cell;

(3). separation, protein purification from substratum or cell.

In step (2), according to used host cell, used substratum can be selected from various conventional substratum in the cultivation.Under the condition that is suitable for the host cell growth, cultivate.After host cell grows into suitable cell density, induce the promotor of selection with suitable method (as temperature transition or chemical induction), cell is cultivated for some time again.

In step (3), recombinant polypeptide can wrap and be expressed or be secreted into the extracellular in cell or on cytolemma.If desired, can utilize its physics, the separating by various separation methods with other characteristic and the albumen of purification of Recombinant of chemistry.These methods are well-known to those skilled in the art.These methods include, but are not limited to: conventional renaturation is handled, protein precipitant is handled (salt analysis method), centrifugal, the broken bacterium of infiltration, the combination of ultrasonication, super centrifugal, sieve chromatography (gel-filtration), adsorption chromatography, ion exchange chromatography, high performance liquid chromatography (HPLC) and other various liquid chromatography (LC) technology and these methods.

The antagonist of polypeptide of the present invention and this polypeptide, agonist and inhibitor can be directly used in disease treatment, for example, can treat malignant tumour, adrenal gland defect, tetter, all kinds of inflammation, HIV infection and immunological disease etc.

Copines albumen is relevant with the cytolemma matter transportation.The Copines albumen of finding in brain is according to the plasticity-of the concentration adjustment central nervous system nerve synapse of the calcium ion in the kytoplasm.Therefore, diseases such as the disease of malnutrition, tissue necrosis, local edema, endocrine regulation, neural system and motor system and hypomnesis;

Specifically for the present invention, polypeptide of the present invention or its fragment can be used for treatment or prevention because cytotrophy supply is undesired, and metabolic waste is got rid of diseases such as the malnutrition that obstacle takes place and cause, tissue necrosis, local edema.

Polypeptide of the present invention or its fragment can also be used to treatment or prevent various endocrinopathys, include but not limited to: diseases such as diabetes insipidus, hypophysis syndromes, adult's hypopituitarism, growth hormone deficiency dwarfism, hypothyroidism, diabetes;

Polypeptide of the present invention or its fragment can also be used to treating or prevent various motion, the nervous system disorderss that cause owing to the cynapse dysfunction, include but not limited to: diseases such as senile dementia, Parkinson's disease, chorea, dysthymia disorders, amnesia, epilepsy, migraine, dementia, multiple sclerosis, myasthenia gravis, spinal muscular atrophy, the false hypertrophy of flesh, myotonic dystrophy, musculartone disease, slow dyskinesia, myodystonia.

The present invention also provides SCREENED COMPOUND to identify the method that improves (agonist) or check the medicament of (antagonist) human membrane binding protein white 37.Agonist improves human membrane binding protein white 37 biological function such as stimulate cellular proliferation, and the antagonist prevention is grown relevant disorder such as various cancer with treatment and cell transition.For example, can in the presence of medicine, the film preparation of mammalian cell or expressing human embrane-associated protein 37 be cultivated with the human membrane binding protein white 37 of mark.Measure the medicine raising then or check this interactional ability.

The antagonist of human membrane binding protein white 37 comprises antibody, compound, acceptor disappearance thing and the analogue etc. that filter out.The antagonist of human membrane binding protein white 37 can combine and eliminate its function with human membrane binding protein white 37, or suppresses the generation of this polypeptide, or combines with the avtive spot of this polypeptide and to make this polypeptide can not bring into play biological function.

In screening during as the compound of antagonist, human membrane binding protein white 37 can be added during bioanalysiss measure, determine to interactional influence between human membrane binding protein white 37 and its acceptor whether compound is antagonist by measuring compound.With the same quadrat method of above-mentioned SCREENED COMPOUND, can filter out the acceptor disappearance thing and the analogue of antagonist action.Can be incorporated into the rondom polypeptide storehouse that solid formation forms by the various amino acid that may make up by screening with the white 37 bonded peptide molecules of human membrane binding protein obtains.During screening, generally tackle white 37 molecules of human membrane binding protein and carry out mark.

The invention provides and use polypeptide, and fragment, derivative, analogue or their cell are as the method for antigen with production antibody.These antibody can be polyclonal antibody or monoclonal antibody.The present invention also provides the antibody at white 37 antigenic determinants of human membrane binding protein.These antibody include, but is not limited to: the fragment that polyclonal antibody, monoclonal antibody, chimeric antibody, single-chain antibody, Fab fragment and Fab expression library produce.

The method of the white 37 direct injection immune animals of the available human membrane binding protein of the production of polyclonal antibody (as rabbit, mouse, rat etc.) obtains, and multiple adjuvant can be used for the enhancing immunity reaction, includes but not limited to freund's adjuvant etc.The technology of monoclonal antibody of preparation human membrane binding protein white 37 include but not limited to hybridoma technology (Kohler andMilstein.Nature, 1975,256:495-497), three knurl technology, people B-quadroma technology, EBV-hybridoma technology etc.With the variable region bonded chimeric antibody in human constant region and inhuman source can with existing technology production (Morrison et al, PNAS, 1985,81:6851).And the technology of existing manufacture order chain antibody (U.S.Pat No.4946778) also can be used for producing the single-chain antibody of anti-human membrane binding protein white 37.

The antibody of anti-human membrane binding protein white 37 can be used in the immunohistochemistry technology, detects the human membrane binding protein white 37 in the biopsy specimen.

With the also available labelled with radioisotope of the white 37 bonded monoclonal antibodies of human membrane binding protein, inject in the body and can follow the tracks of its position and distribution.This radiolabeled antibody can be used as a kind of atraumatic diagnostic method and is used for the location of tumour cell and has judged whether transfer.

Antibody also can be used for designing the immunotoxin at a certain privileged sites in the body.As the monoclonal antibody of white 37 high-affinities of human membrane binding protein can with bacterium or plant poison (as diphtheria toxin, ricin, abrine etc.) covalent attachment.A kind of usual method is with sulfydryl linking agent such as SPDP, attacks the amino of antibody, by the exchange of disulfide linkage, toxin is incorporated on the antibody, and this hybrid antibody can be used for killing white 37 positive cells of human membrane binding protein.

The disease that antibody among the present invention can be used for treating or prevention and human membrane binding protein white 37 are relevant.The antibody that gives suitable dosage can stimulate or block the generation or the activity of human membrane binding protein white 37.

The invention still further relates to the diagnostic testing process of quantitative and white 37 levels of detection and localization human membrane binding protein.These tests are known in the art, and comprise that FISH measures and radioimmunoassay.White 37 levels of the human membrane binding protein that is detected in the test can and be used to the disease of diagnosing human membrane binding protein white 37 to work with the importance of the human membrane binding protein that lays down a definition white 37 in various diseases.

Polypeptide of the present invention also can be used as the peptide spectrum analysis, for example, the polypeptide available physical, chemistry or enzyme carry out the specificity cutting, and carries out the two-dimentional or three-dimensional gel electrophoresis analysis of one dimension, be more preferably and carry out mass spectroscopy.

The polynucleotide of coding human membrane binding protein white 37 also can be used for multiple therapeutic purpose.Gene therapy technology can be used for treating because cell proliferation, growth or the metabolic disturbance due to the nothing expression of human membrane binding protein white 37 or the unusual/non-activity expression.It is white 37 that the gene therapy vector (as virus vector) of reorganization can be designed for the human membrane binding protein of expressing variation, to suppress white 37 activity of endogenic human membrane binding protein.For example, a kind of human membrane binding protein of variation white 37 can be that the human membrane binding protein that shortens, lacked signal conduction function territory is white 37, though can combine with the substrate in downstream, lacks signaling activity.Therefore the gene therapy vector of reorganization can be used for treating the disease of white 37 expression of human membrane binding protein or active caused by abnormal.Deriving from viral expression vector such as retrovirus, adenovirus, adeno-associated virus (AAV), hsv, parvovirus etc. can be used for the polynucleotide of coding human membrane binding protein white 37 are transferred in the cell.The method of recombinant viral vector that structure carries the polynucleotide of coding human membrane binding protein white 37 is found in existing document (Sambrook, et al.).The polynucleotide of reorganization coding human membrane binding protein white 37 can be packaged in the liposome and be transferred in the cell in addition.

Polynucleotide import tissue or intracellular method comprises: directly be injected into polynucleotide in the in-vivo tissue; Or external by carrier (as virus, phage or plasmid etc.) earlier with the polynucleotide transfered cell in, again cell is transplanted in the body etc.

Suppress the oligonucleotide (comprising sense-rna and DNA) of the white 37mRNA of human membrane binding protein and ribozyme also within the scope of the invention.Ribozyme is the enzyme sample RNA molecule that a kind of energy specificity is decomposed specific RNA, and its mechanism of action is to carry out the endonuclease effect after ribozyme molecule and the hybridization of complementary target RNA-specific.The RNA of antisense and DNA and ribozyme can obtain with existing any RNA or DNA synthetic technology, as the technology widespread use of solid phase phosphoamide chemical synthesis synthetic oligonucleotide.Antisense rna molecule can be transcribed acquisition by the dna sequence dna of this RNA that encodes in external or body.This dna sequence dna has been incorporated into the downstream of rna polymerase promoter of carrier.In order to increase the stability of nucleic acid molecule, available several different methods is modified it, and as increasing the sequence length of both sides, the connection between the ribonucleoside is used phosphoric acid thioester bond or peptide bond but not phosphodiester bond.

The polynucleotide of coding human membrane binding protein white 37 can be used for the diagnosis with the relative disease of human membrane binding protein white 37.The unconventionality expression of the expression that the polynucleotide of coding human membrane binding protein white 37 can be used for detecting human membrane binding protein white 37 people's embrane-associated protein 37 whether or under morbid state.As the dna sequence dna of the human membrane binding protein of encoding white 37 can be used for biopsy specimen is hybridized to judge the expression situation of human membrane binding protein white 37.Hybridization technique comprises the Southern blotting, Northern blotting, in situ hybridization etc.These technological methods all are disclosed mature technologies, and relevant test kit all can obtain from commercial channels.Part or all of polynucleotide of the present invention can be used as probe stationary on microarray (Microarray) or DNA chip (being called " gene chip " again), is used for analyzing the differential expression analysis and the gene diagnosis of tissue gene.Personnel selection embrane-associated protein 37 special primers carry out the transcription product that RNA-polymerase chain reaction (RT-PCR) amplification in vitro also can detect human membrane binding protein white 37.

The sudden change that detects white 37 genes of human membrane binding protein also can be used for diagnosing the relevant disease of human membrane binding protein white 37.The form of white 37 sudden changes of human membrane binding protein comprises that the point mutation compared with the white 37DNA sequence of normal wild type human membrane binding protein, transposition, disappearance, reorganization and other are any unusual etc.Available existing technology such as Southern blotting, dna sequence analysis, PCR and in situ hybridization detect sudden change.In addition, sudden change might influence proteic expression, therefore can judge indirectly that with Northern blotting, Western blotting gene has or not sudden change.

Sequence of the present invention identifies it also is valuable to karyomit(e).This sequence can be specifically at certain bar human chromosome particular location and and can with its hybridization.At present, need to identify the concrete site of each gene on the karyomit(e).Now, have only chromosomal marker thing seldom to can be used for the marker chromosomes position based on actual sequence data (repetition polymorphism).According to the present invention, for these sequences are associated with disease related gene, its important the first step is positioned these dna sequence dnas on the karyomit(e) exactly.

In brief, prepare PCR primer (preferred 15-35bp), sequence can be positioned on the karyomit(e) according to cDNA.Then, these primers are used for the somatocyte hybrid cell that the PCR screening contains each bar human chromosome.Have only those hybrid cells that contain corresponding to the people's gene of primer can produce the fragment of amplification.

The PCR localization method of somatocyte hybrid cell is that DNA is navigated to concrete chromosomal quick method.Use Oligonucleolide primers of the present invention,, can utilize one group to realize inferior location from specific chromosomal fragment or a large amount of genomic clone by similar approach.Other the similar strategy that can be used for chromosomal localization comprises in situ hybridization, uses the karyomit(e) prescreen and the hybridization preliminary election of the airflow classification of mark, thereby makes up the special cDNA storehouse of karyomit(e).

The cDNA clone is carried out fluorescence in situ hybridization (FISH) with Metaphase Chromosome, can in a step, accurately carry out chromosomal localization.The summary of this technology is referring to Verma etc., Human Chromosomes:a Manualof Basic Techniques, Pergamon Press, New York (1988).

In case sequence is positioned to chromosome position accurately, the physical location of this sequence on karyomit(e) just can be associated with the gene map data.These data for example are found in, V.Mckusick, MendelianInheritance in Man (can by with the online acquisition of Johns Hopkins University Welch Medical Library).Can pass through linkage analysis then, determine gene and navigated to relation between the disease on the chromosomal region already.

Then, need to measure ill and not cDNA between diseased individuals or genome sequence difference.If observe certain sudden change in some or all of diseased individuals, and this sudden change is not observed in any normal individual, then this sudden change may be the cause of disease of disease.More ill and diseased individuals not is usually directed at first seek the variation of structure in the karyomit(e), as from the horizontal visible of karyomit(e) or use based on detectable disappearance of the PCR of cDNA sequence or transposition.Resolving power according to present physical mapping and assignment of genes gene mapping technology, being accurately positioned to the cDNA of the chromosomal region relevant with disease, can be a kind of (the supposing that 1 megabasse mapping resolving power and every 20kb are corresponding to a gene) between 50 to 500 potential Disease-causing genes.

Polypeptide of the present invention, polynucleotide and stand-in thereof, agonist, antagonist and inhibitor and suitable pharmaceutical carrier combination back can be used.These carriers can be water, glucose, ethanol, salt, damping fluid, glycerine and their combination.Composition comprises the polypeptide or the antagonist of safe and effective amount and carrier and the vehicle that does not influence effect of drugs.These compositions can be used as medicine and are used for disease treatment.

The present invention also provides medicine box or the test kit that contains one or more containers, and one or more medicinal compositions compositions of the present invention are housed in the container.With these containers, can have by the given indicative prompting of government authorities of making, using or selling medicine or biological products, the government authorities that this prompting reflects production, uses or sells permits it to use on human body.In addition, polypeptide of the present invention can be used in combination with other treatment compound.

Pharmaceutical composition can be with mode administration easily, as by in part, intravenously, intraperitoneal, intramuscular, subcutaneous, the nose or the route of administration of intracutaneous.Human membrane binding protein white 37 comes administration with the amount that treats and/or prevents concrete indication effectively.The amount and the dosage range that are applied to patient's human membrane binding protein white 37 will depend on many factors, as administering mode, person's to be treated healthiness condition and diagnostician's judgement.

Following accompanying drawing is used to illustrate specific embodiments of the present invention, and is not used in qualification by the scope of the invention that claims defined.

Fig. 1 is the proteic amino acid sequence homology comparison diagram of inventor's embrane-associated protein 37 and copines I.The top sequence is that human membrane binding protein is white 37, and the below sequence is a copines I albumen.Same amino acid represents with monocase amino acid that between two sequences similar amino acid is represented with "+".

Fig. 2 is the polyacrylamide gel electrophoresis figure (SDS-PAGE) of isolating human membrane binding protein white 37.37kDa is proteinic molecular weight.The arrow indication is isolated protein band.

{ embodiment }

Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.The experimental technique of unreceipted actual conditions in the following example, usually according to people such as normal condition such as Sambrook, molecular cloning: laboratory manual (New York:ColdSpring Harbor Laboratory Press, 1989) condition described in, or the condition of advising according to manufacturer.Embodiment 1: the clone of human membrane binding protein white 37

Extract the total RNA of people's tire brain with guanidinium isothiocyanate/phenol/chloroform single stage method.From total RNA, separate poly (A) mRNA with Quik mRNA Isolation Kit (Qiegene company product).2ug poly (A) mRNA forms cDNA through reverse transcription.CDNA fragment orientation is inserted on the multiple clone site of pBSK (+) carrier (Clontech company product) with Smart cDNA clone's test kit (available from Clontech), transforms DH5 α, bacterium forms the cDNA library.Measure all clones' 5 ' and 3 ' terminal sequence with Dyeterminate cycle reaction sequencing kit (Perkin-Elmer company product) and ABI 377 automatic sequencers (Perkin-Elmer company).CDNA sequence and the existing public dna sequence data storehouse (Genebank) measured are compared, found that the cDNA sequence of one of them clone 0938E02 is new DNA.By synthetic a series of primers the contained insertion cDNA fragment of this clone is carried out two-way mensuration.The result shows, the contained full-length cDNA of 0938E02 clone is 2584bp (shown in Seq ID NO:1), from 699bp to 1709bp the open reading frame (ORF) of a 1011bp, the new protein (shown in Seq ID NO:2) of encoding arranged.We are with this clone's called after pBS-0938E02, encoded protein matter called after human membrane binding protein white 37.Embodiment 2:cDNA clone's homology retrieval

With the sequence and the encoded protein sequence thereof of human membrane binding protein of the present invention white 37, with Blast program (Ba siclocal Alignment search tool) [Alt schul, SF et al.J.Mol.Biol.1990; 215:403-10], carry out the homology retrieval at databases such as Genbank, Swissport.The gene the highest with white 37 homologys of human membrane binding protein of the present invention is a kind of known copines I albumen, and its encoded protein number is U83246 in the access of Genbank.Protein homology the results are shown in Fig. 1, both height homologies, and its homogeny is 99%; Similarity is 99%.Embodiment 3: with the gene of RT-PCR method clones coding human membrane binding protein white 37

Total RNA is a template with fetus brain cell, is that primer carries out the synthetic cDNA of reverse transcription reaction with oligo-dT, with behind the test kit purifying of Qiagene, carries out pcr amplification with following primer:

Primer1:?5’-?GAATCCGCCACCTGTGGCACCTCT?-3’ (SEQ?ID?NO:3)

Primer2:?5’-?CTTCACTGGTCTTTATTGAATGAG?-3’ (SEQ?ID?NO:4)

Primer1 is the forward sequence that begins of 1bp that is positioned at the 5 ' end of SEQ ID NO:1;

Primer2 be SEQ ID NO:1 in 3 ' end reverse sequence.

The condition of amplified reaction: in the reaction volume of 50 μ l, contain 50mmol/L KCl, 10mmol/L Tris-Cl, (pH8.5), 1.5mmol/L MgCl ₂, 200 μ mol/L dNTP, 10pmol primer, the Taq archaeal dna polymerase of 1U (Clontech company product).Go up by 25 cycles of following conditioned response at PE9600 type DNA thermal cycler (Perkin-Elmer company): 94 ℃ of 30sec; 55 ℃ of 30sec; 72 ℃ of 2min.When RT-PCR, establish the blank negative contrast of positive contrast of β-actin and template simultaneously.Amplified production is connected to (Invitrogen company product) on the pCR carrier with the test kit purifying of QIAGEN company with TA clone test kit.The dna sequence analysis result shows that the dna sequence dna of PCR product and the 1-2584bp shown in the SEQ ID NO:1 are identical.Embodiment 4:Northern blotting analyst embrane-associated protein 37 expression of gene:

Extract total RNA[Anal.Biochem 1987,162,156-159 with single stage method].This method comprises acid guanidine thiocyanate phenol-chloroform extracting.Promptly use 4M guanidinium isothiocyanate-25mM Trisodium Citrate, 0.2M sodium acetate (pH4.0) carries out homogenate to tissue, adds the phenol of 1 times of volume and the chloroform-primary isoamyl alcohol (49: 1) of 1/5 volume, and is centrifugal after mixing.The sucking-off aqueous phase layer adds Virahol (0.8 volume) and with the centrifugal RNA precipitation that obtains of mixture.With RNA precipitation 70% washing with alcohol that obtains, dry and soluble in water.With 20 μ g RNA, on 1.2% sepharose that contains 20mM 3-(N-morpholino) propanesulfonic acid (pH7.0)-5mM sodium acetate-1mM EDTA-2.2M formaldehyde, carry out electrophoresis.Be transferred on the nitrocellulose filter then.Prepare by random priming with α-32p dATP ³²The dna probe of p-mark.Used dna probe is white 37 coding region sequences (699bp to 1709bp) of human membrane binding protein of pcr amplification shown in Figure 1.Probe (about 2 * 10 with the 32P-mark ⁶Cpm/ml) spend the night in 42 ℃ of hybridization in a solution with the nitrocellulose filter that has shifted RNA, this solution comprises 50% methane amide-25mM KH ₂PO ₄(pH7.4)-5 * SSC-5 * Denhardt ' s solution and 200 μ g/ml salmon sperm DNAs.After the hybridization, filter membrane is washed 30min in 55 ℃ in 1 * SSC-0.1%SDS.Then, analyze with quantitative with Phosphor Imager.Embodiment 5: the vivoexpression of recombinant human embrane-associated protein 37, separation and purifying

According to SEQ ID NO:1 and coding region sequence shown in Figure 1, design a pair of specificity amplification primer, sequence is as follows:

Primer3:5’-CCCCATATGATGAGGCTGACTATAAGGCTGCTC-3 (Seq?ID?No:5)

Primer4:5’-CCCGAATTCTCAGGTAGTGTAGGGAGTCAGGTAG-3’(Seq?ID?No:6)

5 ' end of these two sections primers contains Nde I and EcoR I restriction enzyme site respectively, be respectively the encoding sequence of target gene 5 ' end and 3 ' end thereafter, Nde I and EcoR I restriction enzyme site are corresponding to expression vector plasmid pET-28b (+) (Novagen company product, Cat.No.69865.3) the selectivity restriction enzyme site on.With the pBS-0938E02 plasmid that contains the total length goal gene is template, carries out the PCR reaction.The PCR reaction conditions is: contain pBS-0938E02 plasmid 10pg, primer Primer-3 and Primer-4 among the cumulative volume 50 μ l and be respectively 10pmol, Advantage polymerase Mix (Clontech company product) 1 μ l.Loop parameter: 94 ℃ of 20s, 60 ℃ of 30s, 68 ℃ of 2min, totally 25 circulations.Respectively amplified production and plasmid pET-28 (+) are carried out double digestion with Nde I and EcoR I, reclaim big fragment respectively, and connect with the T4 ligase enzyme.Connect product and transform, after the dull and stereotyped overnight incubation of the LB that contains kantlex (final concentration 30 μ g/ml), use the colony polymerase chain reaction (PCR) method screening positive clone, and check order with the big enterobacterial DH5 of Calcium Chloride Method α.Select the correct positive colony of sequence (pET-0938E02) with Calcium Chloride Method with recombinant plasmid transformed e. coli bl21 (DE3) plySs (Novagen company product).In the LB liquid nutrient medium that contains kantlex (final concentration 30 μ g/ml), host bacterium BL21 (pET-0938E02) is cultured to logarithmic phase at 37 ℃, adds IPTG to final concentration 1mmol/L, continues to cultivate 5 hours.Centrifugal collection thalline, through the broken bacterium of ultrasonic wave, centrifugal collection supernatant with carrying out chromatography with 6 Histidines (6His-Tag) bonded affinity column His.Bind Quick Cartridge (Novagen company product), has obtained the target protein human membrane binding protein white 37 of purifying.Through the SDS-PAGE electrophoresis, obtain a single band (Fig. 2) at the 37kDa place.This band is transferred on the pvdf membrane carries out the n terminal amino acid sequential analysis with the Edams hydrolysis method, 15 amino acid of N-end hold 15 amino-acid residues identical with the N-shown in the SEQ ID NO:2 as a result.White 37 production of antibodies of embodiment 6 anti-human membrane binding proteins

With synthetic following human membrane binding protein white 37 specific polypeptide: the NH of Peptide synthesizer (PE company product) ₂-Met-Arg-Leu-Thr-Ile-Arg-Leu-Leu-Cys-Val-Val-Ile-Asn-Ser-Thr-COOH (SEQ ID NO:7).

Form compoundly with hemocyanin and bovine serum albumin coupling this polypeptide respectively, method is referring to Avrameas, etal.Immunochemistry, 1969; 6:43.Add the complete Freund's adjuvant immunizing rabbit with the above-mentioned hemocyanin polypeptide complex of 4mg, add the incomplete Freund's adjuvant booster immunization once with the hemocyanin polypeptide complex again after 15 days.Employing is done the titre that ELISA measures antibody in the rabbit anteserum through the titer plate of 15 μ g/ml bovine serum albumin polypeptide complex bag quilts.From the rabbit anteserum of antibody positive, separate total IgG with albumin A-Sepharose.Polypeptide is incorporated on the Sepharose4B post of cyanogen bromide-activated, from total IgG, separates anti-peptide antibody with affinity chromatography.Immuno-precipitation proof antibody purified can combine with human membrane binding protein white 37 specifically.

Sequence table (1) general information:

(ⅱ) denomination of invention: human membrane binding protein white 37 and encoding sequence thereof

(ⅲ) sequence number: the information of 7 (2) SEQ ID NO:1:

(ⅰ) sequence signature:

(A) length: 2584bp

(B) type: nucleic acid

(C) chain: two strands

(D) topological framework: linearity

(ⅱ) molecule type: cDNA

( ⅹⅰ ) ：SEQ ID NO:1:1 GAATCCGCCACCTGTGGCACCTCTACCTGCTGGAATGAATGGCTCTGGAGCACCTATGAA 61 TTTGAACAATAATCTGAATCCTATGTTTCTTGGTCCGTTGAATCCTGTTAACCCTATCCA 121 GATGAACTCTCAGAGCAGTGTGAAGCCACTCCCCATCAACCCTGATGATCTGTATGTCAG 181 TGTGCATGGAATGCCCTTTTCTGCAATGGAAAATGATGTCAGAGATTTTTTTTCATGGGC 241 TCCGTGTTGATGCAGTGCATTTGTTGAAAGATCATGTAGGTCGAAATAATGGGAATGGAT 301 TGGTTAAGTTTCTCTCCCCTCAAGATCATTTGAAGCTTTGAAACGAAACAGAATGCTGAT 361 GATTCAACGCTATGTGGAAGTTAGCCCTGCCACAGAAAGACAGTGGGTAGCTGCTGGAGG 421 CCATATCACTTTTAAGCAAAATATGGGACCTTCTGGACAAACTCATCCCCCTCCTCAGAC 481 ACTTCCCAGGTCAAAATCGCCCAGTGGGCAGAAAAGATCAAGGTCAAGATCACCACATGA 541 GGCTGGTTTTTGTGTTTACTTGAAAGGGCTACCATTTGAAGCAGAAAACAAACATGTCAT 601 TGATTTTTTTAAAAAGCTGGATATTGTGGAAGATAGTATTTATATAGCTTATGGACCCAA 661 TGGGAAAGCAACTGGCGAAGGCTTTGTAGAGTTCAGAAATGAGGCTGACTATAAGGCTGC 721 TCTGTGTCGTCATAAACAGTACATGGGCAATCGCTTTATTCAAGTTCATCCAATTACTAA 781 GAAAGATGGCCCACTGCGTGACCTTGGTTCAGCTGTCCATTTCCTGTGACCATCTCATTG 841 ACAAGGACATCGGCTCCAAGTCTGACCCACTCTGCGTCCTTTTACAGGATGTGGGAGGGG 901 GCAGCTGGGCTGAGCTTGGCCGGACTGAACGGGTGCGGAACTGCTCAAGCCCTGAGTTCT 961 CCAAGACTCTACAGCTTGAGTACCGCTTTGAGACAGTCCAGAAGCTACGCTTTGGAATCT1021 ATGACATAGACAACAAGACGCCAGAGCTGAGGGATGATGACTTCCTAGGGGGTGCTGAGT1081 GTTCCCTAGGACAGATTGTGTCCAGCCAGGTACTGACTCTCCCCTTGATGCTGAAGCCTG1141 GAAAACCTGCTGGGCGGGGGACCATCACGGTCTCAGCTCAGGAATTAAAGGACAATCGTG1201 TAGTAACCATGGAGGTAGAGGCCAGAAACCTAGATAAGAAGGACTTCCTGGGAAAATCAG1261 ATCCATTTCTGGAGTTCTTCCGCCAGGGTGATGGGAAATGGCACCTGGTGTACAGATCTG1321 AGGTCATCAAGAACAACCTGAACCCTACATGGAAGCGTTTCTCAGTCCCCGTTCAGCATT1381 TCTGTGGTGGGAACCCCAGCACACCCATCCAGGTGCAATGCTCCGATTATGACAGTGACG1441 GGTCACATGATCTCATCGGTACCTTCCACACCAGCTTGGCCCAGCTGCAGGCAGTCCCGG1501 CTGAGTTTGAATGCATCCACCCTGAGAAGCAGCAGAAAAAGAAAAGCTACAAGAACTCTG1561 GAACTATCCGTGTCAAGATTTGTCGGGTAGAAACAGAGTACTCCTTTCTGGACTATGTGA1621 TGGGAGGCTGTCAGATCAACTTCACTGTGAGCGTGGACTTCACTGGCTCCAATGGAGACC1681 CCTCCTACCTGACTCCCTACACTACCTGAGTCCAACAGGGGTCAATGAGTACCTGATGGC1741 ACTGTGGAGTGTGGGCAGCGTGGTTCAGGACTATGACTCGTCTCGCATGAATTTGCCTTG1801 AATTTCAACCCCAGTAACCCCTACTGTGCAGGCATCCAGGGCATTGTGGATGCCTACCGC1861 CAAGCCCTGCCCCAAGTTCGCCTCTATGGCCCTACCAACTTTGCACCCATCATCAACCAT1921 GTGGCCAGGTTTGCAGCCCAGGCTGCACATCAGGGGACTGCCTCGGGGTTTAGGAGGAGG1981 ATCTGCTTCAGGACATGAATGGGCTTGTCCCCAGTAATACTTCATGCTGTTGCTGCTGAC2041 TGATGGTGCTGTGACGGATGTGGAAGCCACACGTGAGGCTGTGGTGCGTGCCTCGAACCT2101 GCCCATGTCAGTGATCATTGTGGGTGTGGGTGGTGCTGACTTTGAGGCCATGGAGCAGCT2161 GGACGCTGATGGTGGACCCCTGCATACACGTTCTGGGCAGGCTGCTGCCCGCGACATTGT2221 GCAGTTTGTACCCTACCGCCGGTTCCAGAATGCCCCTCGGGAGGCATTGGCACAGACCGT2281 GCTCGCAGAAGTGCCCACACAACTGGTCTCATACTTCAGGGCCCAGGGTTGGGCCCCGCT2341 CAAGCCACTTCCACCCTCAGCCAAGGATCCTGCACAGGCCCCCCAGGCCTAGGTTCCCTT2401 GGAGGCTGTGGCAAGTCCTCAATCCTGTGTCCCAGAGGTCCCTCTGGGCCACAACCCAAC2461 CCTTCTCACTCTCCTCAGTGCTAGCACTTTGTATTTTTTGATACTTTTATACTTGTTTCT2521 GCTTTTGCTGCTCTTGATCCCACCTTTGCTCCTGACAACCCTCATTCAATAAAGACCAGT2581 GAAG

(3) information of SEQ ID NO:2:

(ⅱ) sequence signature:

(A) length: 336 amino acid

(B) type: amino acid

(D) topological framework: linearity

(ⅱ) molecule type: polypeptide

( ⅹⅰ ) ：SEQ ID NO:2: 1 Met Arg Leu Thr I1e Arg Leu Leu Cys Val Val Ile Asn Ser Thr 16 Trp Ala Ile Ala Leu Phe Lys Phe Ile Gln Leu Leu Arg Lys Met 31 Ala His Cys Val Thr Leu Val Gln Leu Ser Ile Ser Cys Asp His 46 Leu Ile Asp Lys Asp Ile Gly Ser Lys Ser Asp Pro Leu Cys Val 61 Leu Leu Gln Asp Val Gly Gly Gly Ser Trp Ala Glu Leu Gly Arg 76 Thr Glu Arg Val Arg Asn Cys Ser Ser Pro Glu Phe Ser Lys Thr 91 Leu Gln Leu Glu Tyr Arg Phe Glu Thr Val Gln Lys Leu Arg Phe106 Gly Ile Tyr Asp Ile Asp Asn Lys Thr Pro Glu Leu Arg Asp Asp121 Asp Phe Leu Gly Gly Ala Glu Cys Ser Leu Gly Gln Ile Val Ser136 Ser Gln Val Leu Thr Leu Pro Leu Met Leu Lys Pro Gly Lys Pro151 Ala Gly Arg Gly Thr Ile Thr Val Ser Ala Gln Glu Leu Lys Asp166 Asn Arg Val Val Thr Met Glu Val Glu Ala Arg ASn Leu Asp Lys181 Lys Asp Phe Leu Gly Lys Ser Asp Pro Phe Leu Glu Phe Phe Arg196 Gln Gly Asp Gly Lys Trp His Leu Val Tyr Arg Ser Glu Val Ile211 Lys Asn Asn Leu Asn Pro Thr Trp Lys Arg Phe Ser Val Pro Val226 Gln His Phe Cys Gly Gly Asn Pro Ser Thr Pro Ile Gln Val Gln241 Cys Ser Asp Tyr Asp Ser Asp Gly Ser His Asp Leu Ile Gly Thr256 Phe His Thr Ser Leu Ala Gln Leu Gln Ala Val Pro Ala Glu Phe271 Glu Cys Ile His Pro Glu Lys Gln Gln Lys Lys Lys Ser Tyr Lys286 Asn Ser Gly Thr Ile Arg Val Lys Ile Cys Arg Val Glu Thr Glu301 Tyr Ser Phe Leu Asp Tyr Val Met Gly Gly Cys Gln Ile Asn Phe316 Thr Val Ser Val Asp Phe Thr Gly Ser Asn Gly Asp Pro Ser Tyr331 Leu Thr Pro Tyr Thr Thr

(4) information of SEQ ID NO:3

(ⅰ) sequence signature

(A) length: 24 bases

(B) type: nucleic acid

(C) chain: strand

(D) topological framework: linearity

(ⅱ) molecule type: oligonucleotide

(ⅹ ⅰ) sequence description: the information of SEQ ID NO:3:GAATCCGCCACCTGTGGCACCTCT 24 (5) SEQ ID NO:4

(ⅰ) sequence signature

(A) length: 24 bases

(B) type: nucleic acid

(C) chain: strand

(D) topological framework: linearity

(ⅱ) molecule type: oligonucleotide

(ⅹ ⅰ) sequence description: the information of SEQ ID NO:4:CTTCACTGGTCTTTATTGAATGAG 24 (6) SEQ ID NO:5

(ⅰ) sequence signature

(A) length: 32 bases

(B) type: nucleic acid

(C) chain: strand

(D) topological framework: linearity

(ⅱ) molecule type: oligonucleotide

(ⅹ ⅰ) sequence description: the information of SEQ ID NO:5:CAGCCATGGCGGGGAAGAAGAATGTTCTGTCG 32 (7) SEQ ID NO:6

(ⅰ) sequence signature

(A) length: 29 bases

(B) type: nucleic acid

(C) chain: strand

(D) topological framework: linearity

(ⅱ) molecule type: oligonucleotide (ⅹ ⅰ) sequence description: the information of SEQ ID NO:6:CCCGGATCCCGCTGCTTGGCCTTCTTCAC 29 (8) SEQ ID NO:7:

(ⅰ) sequence signature:

(A) length: 15 amino acid

(B) type: amino acid

(D) topological framework: linearity

(ⅱ) molecule type: polypeptide (ⅹ ⅰ) sequence description: SEQ ID NO:7:Met-Ala-Gly-Lys-Lys-Asn-Val-Leu-Ser-Ser-Leu-Ala-Val-Tyr-Ala 15

Claims (18)

1, a kind of isolated polypeptide-human membrane binding protein is white 37, it is characterized in that it includes: the polypeptide of the aminoacid sequence shown in the SEQ ID NO:2 or active fragments, analogue or the derivative of its polypeptide.

2, polypeptide as claimed in claim 1, the aminoacid sequence that it is characterized in that described polypeptide, analogue or derivative has the homogeny with the aminoacid sequence at least 95% shown in the SEQ ID NO:2.

3, polypeptide as claimed in claim 2 is characterized in that it comprises the polypeptide with the aminoacid sequence shown in the SEQ ID NO:2.

4, a kind of isolating polynucleotide, it is characterized in that described polynucleotide comprise be selected from down the group in a kind of:

(a) coding has the polynucleotide of the polypeptide of aminoacid sequence shown in the SEQ ID NO:2 or its fragment, analogue, derivative;

(b) with polynucleotide (a) complementary polynucleotide; Or

(c) with (a) or the polynucleotide of at least 99% homogeny (b) are arranged.

5, polynucleotide as claimed in claim 4 is characterized in that described polynucleotide comprise the polynucleotide that coding has aminoacid sequence shown in the SEQID NO:2.

6, polynucleotide as claimed in claim 4, the sequence that it is characterized in that described polynucleotide include the sequence of 1-2584 position among the sequence of 699-1709 position among the SEQ IDNO:1 or the SEQ ID NO:1.

7, a kind of recombinant vectors that contains exogenous polynucleotide is characterized in that it is the recombinant vectors that is formed by the described polynucleotide of arbitrary claim among the claim 4-6 and plasmid, virus or vehicle expression vector establishment.

8, a kind of genetically engineered host cell that contains exogenous polynucleotide is characterized in that it is to be selected from following a kind of host cell:

(a) host cell that transforms or transduce with the described recombinant vectors of claim 7; Or

(b) host cell that transforms or transduce with the described polynucleotide of the arbitrary claim among the claim 4-6.

9, a kind of preparation method with the white 37 active polypeptide of human membrane binding protein is characterized in that described method comprises:

(a) under expressing human embrane-associated protein 37 conditions, cultivate the described through engineering approaches host cell of claim 8;

(b) from culture, isolate and have human membrane binding protein white 37 active polypeptide.

10, a kind of can with polypeptide bonded antibody, it is characterized in that described antibody be can with the white 37 specificity bonded antibody of human membrane binding protein.

11, the compound of an analoglike or adjusting polypeptide active or expression is characterized in that they are simulation, promotion, antagonism or the active compound that suppresses human membrane binding protein white 37.

12, compound as claimed in claim 11 is characterized in that it is the polynucleotide sequence shown in the SEQ ID NO:1 or its segmental antisense sequences.

13, the described application of compound of a kind of claim 11, it is characterized in that described compound be used for mediator's embrane-associated protein 37 in vivo, the method for external activity.

14, a kind of disease relevant or method of disease susceptibility of detecting with the described polypeptide of arbitrary claim among the claim 1-3, it is characterized in that it comprises the described polypeptide expression amount that detects, perhaps detect the activity of described polypeptide, perhaps detect and cause described expression of polypeptides amount or active unusual nucleotide diversity in the polynucleotide.

15, as the application of polypeptide as described in the arbitrary claim among the claim 1-3, it is characterized in that it is applied to screen stand-in, the agonist of human membrane binding protein white 37, antagonist or inhibitor; Perhaps be used for the peptide finger print identification.

16, as the application of the described nucleic acid molecule of arbitrary claim among the claim 4-6, it is characterized in that it is used for nucleic acid amplification reaction as primer, perhaps be used for hybridization, perhaps be used to make gene chip or microarray as probe.

17,, it is characterized in that forming pharmaceutical composition with safe and effective dosage and pharmaceutically acceptable carrier as the relevant unusually disease of diagnosis or treatment and human membrane binding protein white 37 with described polypeptide, polynucleotide or its stand-in, agonist, antagonist or inhibitor as the described polypeptide of arbitrary claim, polynucleotide or application of compound in claim 1-6 and 11.

18, the described polypeptide of arbitrary claim, polynucleotide or the application of compound among the claim 1-6 and 11, it is characterized in that being used for the treatment of as malignant tumour with described polypeptide, polynucleotide or compound, hemopathy, the medicine of HIV infection and immunological disease and all kinds of inflammation.

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