PTPRG

Receptor-type tyrosine-protein phosphatase gamma is an enzyme that in humans is encoded by the PTPRG gene.

PTPRG
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 2H4V, 2HY3, 2NLK, 2PBN, 3JXH, 3QCB, 3QCC, 3QCD, 3QCE, 3QCF, 3QCG, 3QCH, 3QCI, 3QCJ, 3QCK, 3QCL, 3QCM, 3QCN
Identifiers
Aliases	PTPRG, HPTPG, PTPG, R-PTP-GAMMA, RPTPG, protein tyrosine phosphatase, receptor type G, protein tyrosine phosphatase receptor type G
External IDs	OMIM: 176886; MGI: 97814; HomoloGene: 2129; GeneCards: PTPRG; OMA:PTPRG - orthologs
Gene location (Human) Chr. Chromosome 3 (human) Band 3p14.2 Start 61,561,569 bp End 62,297,609 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in Achilles tendon lower lobe of lung caput epididymis synovial joint buccal mucosa cell oocyte pericardium corpus epididymis urethra stromal cell of endometrium n/a More reference expression data BioGPS n/a
Gene ontology Molecular function protein tyrosine phosphatase activity phosphatase activity transmembrane receptor protein tyrosine phosphatase activity protein binding phosphoprotein phosphatase activity hydrolase activity identical protein binding Cellular component integral component of membrane integral component of plasma membrane extracellular exosome membrane extracellular space Biological process regulation of homophilic cell adhesion protein dephosphorylation negative regulation of epithelial cell migration transmembrane receptor protein tyrosine kinase signaling pathway dephosphorylation brain development negative regulation of neuron projection development peptidyl-tyrosine dephosphorylation Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 5793 19270 Ensembl ENSG00000144724 n/a UniProt P23470 Q05909 RefSeq (mRNA) NM_002841 NM_001375471 NM_008981 NM_001347593 RefSeq (protein) NP_002832 NP_001362400 NP_001334522 NP_033007 Location (UCSC) Chr 3: 61.56 – 62.3 Mb n/a PubMed search
Wikidata
View/Edit Human View/Edit Mouse

The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation.

This PTP possesses an extracellular region, a single transmembrane region, and two tandem intracytoplasmic catalytic domains, and thus represents a receptor-type PTP. The extracellular region of this PTP contains a carbonic anhydrase-like (CAH) domain, which is also found in the extracellular region of PTPRBETA/ZETA. This gene is located in a chromosomal region that is frequently deleted in renal cell carcinoma and lung carcinoma, thus is thought to be a candidate tumor suppressor gene.

Further reading

• Kaplan R, Morse B, Huebner K, et al. (1990). "Cloning of three human tyrosine phosphatases reveals a multigene family of receptor-linked protein-tyrosine-phosphatases expressed in brain". Proc. Natl. Acad. Sci. U.S.A. 87 (18): 7000–4. Bibcode:1990PNAS...87.7000K. doi:10.1073/pnas.87.18.7000. PMC 54670. PMID 2169617.
• Krueger NX, Streuli M, Saito H (1990). "Structural diversity and evolution of human receptor-like protein tyrosine phosphatases". EMBO J. 9 (10): 3241–52. doi:10.1002/j.1460-2075.1990.tb07523.x. PMC 552056. PMID 2170109.
• Latif F, Tory K, Modi W, et al. (1993). "A MspI polymorphism and linkage mapping of the human protein-tyrosine phosphatase G (PTPRG) gene". Hum. Mol. Genet. 2 (1): 91. doi:10.1093/hmg/2.1.91. PMID 7683956.
• Barnea G, Silvennoinen O, Shaanan B, et al. (1993). "Identification of a carbonic anhydrase-like domain in the extracellular region of RPTP gamma defines a new subfamily of receptor tyrosine phosphatases". Mol. Cell. Biol. 13 (3): 1497–506. doi:10.1128/mcb.13.3.1497. PMC 386361. PMID 8382771.
• Kastury K, Ohta M, Lasota J, et al. (1997). "Structure of the human receptor tyrosine phosphatase gamma gene (PTPRG) and relation to the familial RCC t(3;8) chromosome translocation". Genomics. 32 (2): 225–35. doi:10.1006/geno.1996.0109. PMID 8833149.
• van Niekerk CC, Poels LG (1999). "Reduced expression of protein tyrosine phosphatase gamma in lung and ovarian tumors". Cancer Lett. 137 (1): 61–73. doi:10.1016/S0304-3835(98)00344-9. PMID 10376795.
• Kawachi H, Tamura H, Watakabe I, et al. (1999). "Protein tyrosine phosphatase zeta/RPTPbeta interacts with PSD-95/SAP90 family". Brain Res. Mol. Brain Res. 72 (1): 47–54. doi:10.1016/S0169-328X(99)00204-1. PMID 10521598.
• Liu S, Kulp SK, Sugimoto Y, et al. (2002). "Involvement of breast epithelial-stromal interactions in the regulation of protein tyrosine phosphatase-gamma (PTPgamma) mRNA expression by estrogenically active agents". Breast Cancer Res. Treat. 71 (1): 21–35. doi:10.1023/A:1013343718942. PMID 11859871. S2CID 6175175.
• Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. Bibcode:2002PNAS...9916899M. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Liu S, Sugimoto Y, Kulp SK, et al. (2003). "Estrogenic down-regulation of protein tyrosine phosphatase gamma (PTP gamma) in human breast is associated with estrogen receptor alpha". Anticancer Res. 22 (6C): 3917–23. PMID 12553013.
• Liu S, Sugimoto Y, Sorio C, et al. (2004). "Function analysis of estrogenically regulated protein tyrosine phosphatase gamma (PTPgamma) in human breast cancer cell line MCF-7". Oncogene. 23 (6): 1256–62. doi:10.1038/sj.onc.1207235. PMID 14676845.
• van Doorn R, Zoutman WH, Dijkman R, et al. (2005). "Epigenetic profiling of cutaneous T-cell lymphoma: promoter hypermethylation of multiple tumor suppressor genes including BCL7a, PTPRG, and p73". J. Clin. Oncol. 23 (17): 3886–96. doi:10.1200/JCO.2005.11.353. PMID 15897551.
• Liu T, Qian WJ, Gritsenko MA, et al. (2006). "Human plasma N-glycoproteome analysis by immunoaffinity subtraction, hydrazide chemistry, and mass spectrometry". J. Proteome Res. 4 (6): 2070–80. doi:10.1021/pr0502065. PMC 1850943. PMID 16335952.