Immunogen sequence: DDINIKQVLL NMRKYRMGLI QTPDQLRFSY MAIIEGAKCI KGDSSIQKRW KELSKEDLSP AFDHSPNKIM TEKYNGNRIG LEEEKLTGDR CTGLSSKMQD TMEENSESAL RKRIREDRKA TTAQKVQQMK QRLNENERK
T cell protein tyrosine phosphatase (TCPTP), also known as PTPT and PTPN2, is an enzyme that removes phosphate groups covalently attached to tyrosine residues in proteins. TCPTP is ubiquitously expressed with particularly high expression in hematopoietic tissues and exists as two forms: an endoplasmic reticulum-targeted 48-kDa form (TC48) and a nuclear 45-kDa form (TC45). Although targeted to the nucleus, TC45 can exit in response to specific stimuli to dephosphorylate cytoplasmic substrates. TC-PTP is a negative regulator of the Jak/Stat cytokine signaling pathway. TCPTP is the PTP most closely related to PTP1B, with 72% sequence identity and 86% similarity in the catalytic domain.
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Protein Aliases: PTPT; T-cell protein tyrosine phosphatase; T-cell protein-tyrosine phosphatase; TC-PTP; TCELLPTP; TCPTP; Tyrosine-protein phosphatase non-receptor type 2
Gene Aliases: PTN2; PTPN2; PTPT; TC-PTP; TCELLPTP; TCPTP
UniProt ID: (Human) P17706
Entrez Gene ID: (Human) 5771