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Overview

Uniprot IDP08575
Protein NameReceptor-type tyrosine-protein phosphatase C
Gene NamePTPRC
OrganismHomo sapiens

Kla Sites from experimental identification

Position Flanking peptide
969 IGNQEENKSKNRNSN

Function

Protein tyrosine-protein phosphatase required for T-cell activation through the antigen receptor (PubMed:35767951). Acts as a positive regulator of T-cell coactivation upon binding to DPP4. The first PTPase domain has enzymatic activity, while the second one seems to affect the substrate specificity of the first one. Upon T-cell activation, recruits and dephosphorylates SKAP1 and FYN. Dephosphorylates LYN, and thereby modulates LYN activity (By similarity). Interacts with CLEC10A at antigen presenting cell-T cell contact; CLEC10A on immature dendritic cells recognizes Tn antigen-carrying PTPRC/CD45 receptor on effector T cells and modulates T cell activation threshold to limit autoreactivity

Protein Sequence

10 MTMYLWLKLL 20 AFGFAFLDTE 30 VFVTGQSPTP 40 SPTGLTTAKM 50 PSVPLSSDPL 60 PTHTTAFSPA 70 STFERENDFS 80 ETTTSLSPDN 90 TSTQVSPDSL 100 DNASAFNTTG 110 VSSVQTPHLP 120 THADSQTPSA 130 GTDTQTFSGS 140 AANAKLNPTP 150 GSNAISDVPG 160 ERSTASTFPT 170 DPVSPLTTTL 180 SLAHHSSAAL 190 PARTSNTTIT 200 ANTSDAYLNA 210 SETTTLSPSG 220 SAVISTTTIA 230 TTPSKPTCDE 240 KYANITVDYL 250 YNKETKLFTA 260 KLNVNENVEC 270 GNNTCTNNEV 280 HNLTECKNAS 290 VSISHNSCTA 300 PDKTLILDVP 310 PGVEKFQLHD 320 CTQVEKADTT 330 ICLKWKNIET 340 FTCDTQNITY 350 RFQCGNMIFD 360 NKEIKLENLE 370 PEHEYKCDSE 380 ILYNNHKFTN 390 ASKIIKTDFG 400 SPGEPQIIFC 410 RSEAAHQGVI 420 TWNPPQRSFH 430 NFTLCYIKET 440 EKDCLNLDKN 450 LIKYDLQNLK 460 PYTKYVLSLH 470 AYIIAKVQRN 480 GSAAMCHFTT 490 KSAPPSQVWN 500 MTVSMTSDNS 510 MHVKCRPPRD 520 RNGPHERYHL 530 EVEAGNTLVR 540 NESHKNCDFR 550 VKDLQYSTDY 560 TFKAYFHNGD 570 YPGEPFILHH 580 STSYNSKALI 590 AFLAFLIIVT 600 SIALLVVLYK 610 IYDLHKKRSC 620 NLDEQQELVE 630 RDDEKQLMNV 640 EPIHADILLE 650 TYKRKIADEG 660 RLFLAEFQSI 670 PRVFSKFPIK 680 EARKPFNQNK 690 NRYVDILPYD 700 YNRVELSEIN 710 GDAGSNYINA 720 SYIDGFKEPR 730 KYIAAQGPRD 740 ETVDDFWRMI 750 WEQKATVIVM 760 VTRCEEGNRN 770 KCAEYWPSME 780 EGTRAFGDVV 790 VKINQHKRCP 800 DYIIQKLNIV 810 NKKEKATGRE 820 VTHIQFTSWP 830 DHGVPEDPHL 840 LLKLRRRVNA 850 FSNFFSGPIV 860 VHCSAGVGRT 870 GTYIGIDAML 880 EGLEAENKVD 890 VYGYVVKLRR 900 QRCLMVQVEA 910 QYILIHQALV 920 EYNQFGETEV 930 NLSELHPYLH 940 NMKKRDPPSE 950 PSPLEAEFQR 960 LPSYRSWRTQ 970 HIGNQEENKS 980 KNRNSNVIPY 990 DYNRVPLKHE 1000 LEMSKESEHD 1010 SDESSDDDSD 1020 SEEPSKYINA 1030 SFIMSYWKPE 1040 VMIAAQGPLK 1050 ETIGDFWQMI 1060 FQRKVKVIVM 1070 LTELKHGDQE 1080 ICAQYWGEGK 1090 QTYGDIEVDL 1100 KDTDKSSTYT 1110 LRVFELRHSK 1120 RKDSRTVYQY 1130 QYTNWSVEQL 1140 PAEPKELISM 1150 IQVVKQKLPQ 1160 KNSSEGNKHH 1170 KSTPLLIHCR 1180 DGSQQTGIFC 1190 ALLNLLESAE 1200 TEEVVDIFQV 1210 VKALRKARPG 1220 MVSTFEQYQF 1230 LYDVIASTYP 1240 AQNGQVKKNN 1250 HQEDKIEFDN 1260 EVDKVKQDAN 1270 CVNPLGAPEK 1280 LPEAKEQAEG 1290 SEPTSGTEGP 1300 EHSVNGPASP ALNQGS

Gene Ontology

Classification GO ID Description
Biological Process GO:2000648 positive regulation of stem cell proliferation
Cellular Component GO:0032059 bleb
Cellular Component GO:0009986 cell surface
Cellular Component GO:0009898 cytoplasmic side of plasma membrane
Cellular Component GO:0009897 external side of plasma membrane
Cellular Component GO:0070062 extracellular exosome
Cellular Component GO:0005925 focal adhesion
Cellular Component GO:0016020 membrane
Cellular Component GO:0098857 membrane microdomain
Cellular Component GO:0045121 membrane raft
Cellular Component GO:0005886 plasma membrane
Cellular Component GO:0030667 secretory granule membrane
Cellular Component GO:0045202 synapse
Molecular Function GO:0030506 ankyrin binding
Molecular Function GO:0043395 heparan sulfate proteoglycan binding
Molecular Function GO:0008201 heparin binding
Molecular Function GO:0042802 identical protein binding
Molecular Function GO:0019901 protein kinase binding
Molecular Function GO:0030292 protein tyrosine kinase inhibitor activity
Molecular Function GO:0004725 protein tyrosine phosphatase activity
Molecular Function GO:0005102 signaling receptor binding
Molecular Function GO:0030507 spectrin binding
Molecular Function GO:0005001 transmembrane receptor protein tyrosine phosphatase activity
Biological Process GO:0030183 B cell differentiation
Biological Process GO:0042100 B cell proliferation
Biological Process GO:0050853 B cell receptor signaling pathway
Biological Process GO:0048539 bone marrow development
Biological Process GO:0044770 cell cycle phase transition
Biological Process GO:0007166 cell surface receptor signaling pathway
Biological Process GO:0051607 defense response to virus
Biological Process GO:0016311 dephosphorylation
Biological Process GO:1904155 DN2 thymocyte differentiation
Biological Process GO:0002244 hematopoietic progenitor cell differentiation
Biological Process GO:0001779 natural killer cell differentiation
Biological Process GO:0006933 negative regulation of cell adhesion involved in substrate-bound cell migration
Biological Process GO:0001960 negative regulation of cytokine-mediated signaling pathway
Biological Process GO:0070373 negative regulation of ERK1 and ERK2 cascade
Biological Process GO:0032703 negative regulation of interleukin-2 production
Biological Process GO:1902215 negative regulation of interleukin-4-mediated signaling pathway
Biological Process GO:1903979 negative regulation of microglial cell activation
Biological Process GO:0006469 negative regulation of protein kinase activity
Biological Process GO:0046426 negative regulation of receptor signaling pathway via JAK-STAT
Biological Process GO:0001915 negative regulation of T cell mediated cytotoxicity
Biological Process GO:0000122 negative regulation of transcription by RNA polymerase II
Biological Process GO:0044855 plasma membrane raft distribution
Biological Process GO:0050857 positive regulation of antigen receptor-mediated signaling pathway
Biological Process GO:0030890 positive regulation of B cell proliferation
Biological Process GO:0050850 positive regulation of calcium-mediated signaling
Biological Process GO:0070374 positive regulation of ERK1 and ERK2 cascade
Biological Process GO:0060369 positive regulation of Fc receptor mediated stimulatory signaling pathway
Biological Process GO:2000473 positive regulation of hematopoietic stem cell migration
Biological Process GO:0002639 positive regulation of immunoglobulin production
Biological Process GO:0032743 positive regulation of interleukin-2 production
Biological Process GO:0043410 positive regulation of MAPK cascade
Biological Process GO:0050766 positive regulation of phagocytosis
Biological Process GO:0045860 positive regulation of protein kinase activity
Biological Process GO:0042102 positive regulation of T cell proliferation
Biological Process GO:0032760 positive regulation of tumor necrosis factor production
Biological Process GO:0006470 protein dephosphorylation
Biological Process GO:0051726 regulation of cell cycle
Biological Process GO:0010468 regulation of gene expression
Biological Process GO:0032677 regulation of interleukin-8 production
Biological Process GO:0050764 regulation of phagocytosis
Biological Process GO:0050856 regulation of T cell receptor signaling pathway
Biological Process GO:0051209 release of sequestered calcium ion into cytosol
Biological Process GO:1904044 response to aldosterone
Biological Process GO:0010332 response to gamma radiation
Biological Process GO:0007165 signal transduction
Biological Process GO:0048864 stem cell development
Biological Process GO:0042110 T cell activation
Biological Process GO:0030217 T cell differentiation
Biological Process GO:0050852 T cell receptor signaling pathway

Reference

[1] Cheng Z, Huang H, Li M, Chen Y. Proteomic analysis identifies PFKP lactylation in SW480 colon cancer cells.. iScience 27(1):108645. 2024 Jan 19. PMID: 38155775.