TCPTP Antibody – Polyclonal

The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. Members of the PTP family share a highly conserved catalytic motif, which is essential for the catalytic activity. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. Epidermal growth factor receptor and the adaptor protein Shc were reported to be substrates of this PTP, which suggested the roles in growth factor mediated cell signaling. Multiple alternatively spliced transcript variants encoding different isoforms have been found. Two highly related but distinctly processed pseudogenes that localize to chromosomes 1 and 13, respectively, have been reported. [provided by RefSeq, May 2011]

PTPN2: a type 2 non-receptor phospho-tyrosine-protein phosphatase (PTP). Two alternatively spliced isoforms are differenyially expressed. Isoform A is a major PTP expressed in human tissues, while isoform B is expressed mainly in T-cells and in placenta.

Protein type: Motility/polarity/chemotaxis; Protein phosphatase, tyrosine (non-receptor); EC 3.1.3.48

Chromosomal Location of Human Ortholog: 18p11.3-p11.2

Cellular Component: endoplasmic reticulum; ER-Golgi intermediate compartment; nucleoplasm; nucleus; plasma membrane

Molecular Function: integrin binding; non-membrane spanning protein tyrosine phosphatase activity; protein binding; protein kinase binding; protein tyrosine phosphatase activity; receptor tyrosine kinase binding; syntaxin binding

Biological Process: B cell differentiation; erythrocyte differentiation; glucose homeostasis; insulin receptor signaling pathway; negative regulation of cell proliferation; negative regulation of chemotaxis; negative regulation of epidermal growth factor receptor signaling pathway; negative regulation of inflammatory response; negative regulation of insulin receptor signaling pathway; negative regulation of macrophage differentiation; negative regulation of T cell receptor signaling pathway; negative regulation of tyrosine phosphorylation of Stat1 protein; negative regulation of tyrosine phosphorylation of Stat3 protein; negative regulation of tyrosine phosphorylation of Stat5 protein; negative regulation of tyrosine phosphorylation of Stat6 protein; positive regulation of gluconeogenesis; T cell differentiation