PTPN7
Protein tirozin-fosfataza nereceptorski tip 7 jest enzim koji je kod ljudi kodiran genom PTPN7 sa hromosoma 1.[5][6]
Aminokiselinska sekvenca
[uredi | uredi izvor]Dužina polipeptidnog lanca je 360 aminokiselina, a molekulska težina 40.529 Da.[7]
| 10 | 20 | 30 | 40 | 50 | ||||
|---|---|---|---|---|---|---|---|---|
| MVQAHGGRSR | AQPLTLSLGA | AMTQPPPEKT | PAKKHVRLQE | RRGSNVALML | ||||
| DVRSLGAVEP | ICSVNTPREV | TLHFLRTAGH | PLTRWALQRQ | PPSPKQLEEE | ||||
| FLKIPSNFVS | PEDLDIPGHA | SKDRYKTILP | NPQSRVCLGR | AQSQEDGDYI | ||||
| NANYIRGYDG | KEKVYIATQG | PMPNTVSDFW | EMVWQEEVSL | IVMLTQLREG | ||||
| KEKCVHYWPT | EEETYGPFQI | RIQDMKECPE | YTVRQLTIQY | QEERRSVKHI | ||||
| LFSAWPDHQT | PESAGPLLRL | VAEVEESPET | AAHPGPIVVH | CSAGIGRTGC | ||||
| FIATRIGCQQ | LKARGEVDIL | GIVCQLRLDR | GGMIQTAEQY | QFLHHTLALY | ||||
| AGQLPEEPSP |
Funkcija
[uredi | uredi izvor]Protein kodiran ovim genom je član porodice protein tirozin-fosfataza (PTP). Poznato je da su PTP-ovi signalne molekule koji reguliraju različite ćelijske procese, uključujući ćelijski rast, diferencijaciju, miozni ciklus i onkogenu transformaciju. Ovaj gen se prvenstveno eksprimira u različitim hematopoetskim ćelijama i predstavlja gen ranog odgovora u ćelijama stimuliranim limfokinom. Nekatalitski N-kraj[ ovog PTP-a može stupiti u interakciju s MAP kinazama i potisnuti njihovu aktivnost. Pokazalo se da je ovaj PTP uključen u regulaciju signalizacije receptora antigena T-ćelija (TCR), za koju se smatralo da funkcioniše kroz defosforilaciju molekula povezanih sa putevima MAP kinaze. Za ovaj gen su pronađene dvije alternativno prerađene varijante transkripta koje kodiraju različite izoforme.[6]
Interakcije
[uredi | uredi izvor]Pokazalo se da je PTPN7 u interakciji sa MAPK3[8][9][10] i MAPK1.[8][10]
Reference
[uredi | uredi izvor]- ^ a b c GRCh38: Ensembl release 89: ENSG00000143851 - Ensembl, maj 2017
- ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000031506 - Ensembl, maj 2017
- ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
- ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
- ^ Adachi M, Sekiya M, Isobe M, Kumura Y, Ogita Z, Hinoda Y, Imai K, Yachi A (septembar 1992). "Molecular cloning and chromosomal mapping of a human protein-tyrosine phosphatase LC-PTP". Biochem Biophys Res Commun. 186 (3): 1607–15. doi:10.1016/S0006-291X(05)81592-X. PMID 1510684.
- ^ a b "Entrez Gene: PTPN7 protein tyrosine phosphatase, non-receptor type 7".
- ^ "UniProt, P35236" (jezik: engleski). Pristupljeno 16. 12. 2021.
- ^ a b Pettiford SM, Herbst R (februar 2000). "The MAP-kinase ERK2 is a specific substrate of the protein tyrosine phosphatase HePTP". Oncogene. 19 (7): 858–69. doi:10.1038/sj.onc.1203408. PMID 10702794.
- ^ Saxena M, Williams S, Taskén K, Mustelin T (septembar 1999). "Crosstalk between cAMP-dependent kinase and MAP kinase through a protein tyrosine phosphatase". Nat. Cell Biol. 1 (5): 305–11. doi:10.1038/13024. PMID 10559944. S2CID 40413956.
- ^ a b Saxena M, Williams S, Brockdorff J, Gilman J, Mustelin T (april 1999). "Inhibition of T cell signaling by mitogen-activated protein kinase-targeted hematopoietic tyrosine phosphatase (HePTP)". J. Biol. Chem. 274 (17): 11693–700. doi:10.1074/jbc.274.17.11693. PMID 10206983.
Dopunska literatura
[uredi | uredi izvor]- Adachi M, Sekiya M, Arimura Y, Takekawa M, Itoh F, Hinoda Y, Imai K, Yachi A (1992). "Protein-tyrosine phosphatase expression in pre-B cell NALM-6". Cancer Res. 52 (3): 737–40. PMID 1370651.
- Zanke B, Suzuki H, Kishihara K, Mizzen L, Minden M, Pawson A, Mak TW (1992). "Cloning and expression of an inducible lymphoid-specific, protein tyrosine phosphatase (HePTPase)". Eur. J. Immunol. 22 (1): 235–9. doi:10.1002/eji.1830220134. PMID 1530918. S2CID 29146172.
- Swieter M, Berenstein EH, Swaim WD, Siraganian RP (1995). "Aggregation of IgE receptors in rat basophilic leukemia 2H3 cells induces tyrosine phosphorylation of the cytosolic protein-tyrosine phosphatase HePTP". J. Biol. Chem. 270 (37): 21902–6. doi:10.1074/jbc.270.37.21902. PMID 7545170.
- Maruyama K, Sugano S (1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID 8125298.
- Zanke B, Squire J, Griesser H, Henry M, Suzuki H, Patterson B, Minden M, Mak TW (1994). "A hematopoietic protein tyrosine phosphatase (HePTP) gene that is amplified and overexpressed in myeloid malignancies maps to chromosome 1q32.1". Leukemia. 8 (2): 236–44. PMID 8309248.
- Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, Suyama A, Sugano S (1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID 9373149.
- Saxena M, Williams S, Gilman J, Mustelin T (1998). "Negative regulation of T cell antigen receptor signal transduction by hematopoietic tyrosine phosphatase (HePTP)". J. Biol. Chem. 273 (25): 15340–4. doi:10.1074/jbc.273.25.15340. PMID 9624114.
- Saxena M, Williams S, Brockdorff J, Gilman J, Mustelin T (1999). "Inhibition of T cell signaling by mitogen-activated protein kinase-targeted hematopoietic tyrosine phosphatase (HePTP)". J. Biol. Chem. 274 (17): 11693–700. doi:10.1074/jbc.274.17.11693. PMID 10206983.
- Oh-hora M, Ogata M, Mori Y, Adachi M, Imai K, Kosugi A, Hamaoka T (1999). "Direct suppression of TCR-mediated activation of extracellular signal-regulated kinase by leukocyte protein tyrosine phosphatase, a tyrosine-specific phosphatase". J. Immunol. 163 (3): 1282–8. PMID 10415025.
- Saxena M, Williams S, Taskén K, Mustelin T (1999). "Crosstalk between cAMP-dependent kinase and MAP kinase through a protein tyrosine phosphatase". Nat. Cell Biol. 1 (5): 305–11. doi:10.1038/13024. PMID 10559944. S2CID 40413956.
- Pettiford SM, Herbst R (2000). "The MAP-kinase ERK2 is a specific substrate of the protein tyrosine phosphatase HePTP". Oncogene. 19 (7): 858–69. doi:10.1038/sj.onc.1203408. PMID 10702794.
- Gjörloff-Wingren A, Saxena M, Han S, Wang X, Alonso A, Renedo M, Oh P, Williams S, Schnitzer J, Mustelin T (2000). "Subcellular localization of intracellular protein tyrosine phosphatases in T cells". Eur. J. Immunol. 30 (8): 2412–21. doi:10.1002/1521-4141(2000)30:8<2412::AID-IMMU2412>3.0.CO;2-J. PMID 10940933.
- Tartaglia M, Mehler EL, Goldberg R, Zampino G, Brunner HG, Kremer H, van der Burgt I, Crosby AH, Ion A, Jeffery S, Kalidas K, Patton MA, Kucherlapati RS, Gelb BD (2001). "Mutations in PTPN11, encoding the protein tyrosine phosphatase SHP-2, cause Noonan syndrome". Nat. Genet. 29 (4): 465–8. doi:10.1038/ng772. PMID 11704759. S2CID 14627986.
- Wang ZX, Zhou B, Wang QM, Zhang ZY (2002). "A kinetic approach for the study of protein phosphatase-catalyzed regulation of protein kinase activity". Biochemistry. 41 (24): 7849–57. doi:10.1021/bi025776m. PMID 12056917.
- Digilio MC, Conti E, Sarkozy A, Mingarelli R, Dottorini T, Marino B, Pizzuti A, Dallapiccola B (2002). "Grouping of Multiple-Lentigines/LEOPARD and Noonan Syndromes on the PTPN11 Gene". Am. J. Hum. Genet. 71 (2): 389–94. doi:10.1086/341528. PMC 379170. PMID 12058348.
- Kosaki K, Suzuki T, Muroya K, Hasegawa T, Sato S, Matsuo N, Kosaki R, Nagai T, Hasegawa Y, Ogata T (2002). "PTPN11 (protein-tyrosine phosphatase, nonreceptor-type 11) mutations in seven Japanese patients with Noonan syndrome". J. Clin. Endocrinol. Metab. 87 (8): 3529–33. doi:10.1210/jc.87.8.3529. PMID 12161469.
- Pettiford SM, Herbst R (2003). "The protein tyrosine phosphatase HePTP regulates nuclear translocation of ERK2 and can modulate megakaryocytic differentiation of K562 cells". Leukemia. 17 (2): 366–78. doi:10.1038/sj.leu.2402767. PMID 12592337.