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This antibody was cross-adsorbed to a phospho-tyrosine peptide then affinity purified with phospho-PTP1B (Tyr-152) peptide. The purified antibody detects a 50 kDa* band corresponding to PTP1B in western blots of pervanadate treated human A431 and Jurkat, as well as mouse SYF cells. This reactivity is not observed in control cells or after alkaline phosphatase treatment of blots.
PTP1B (PTPN1) is a tyrosine-protein phosphatase which acts as a regulator of endoplasmic reticulum unfolded protein response. It mediates dephosphorylation of EIF2AK3/PERK and in turn inactivates the protein kinase activity of EIF2AK3/PERK. PTP1B also plays a role in CKII- and p60c-src-induced signal transduction cascades. It regulates the EFNA5-EPHA3 signaling pathway which modulates cell reorganization and cell-cell repulsion. PTP1B also regulates the hepatocyte growth factor receptor signaling pathway through dephosphorylation of MET.
仅用于科研。不用于诊断过程。未经明确授权不得转售。
蛋白别名: CPTP1; EC 3.1.3.48; hgnc9642; KIAA0283; protein tyrosine phosphatase, placental; protein-protein-tyrosine phosphatase HA2; Protein-tyrosine phosphatase 1B; Protein-tyrosine phosphatase HA2; PTN1; PTP-1B; PTP-HA2; RP5-1121H13.2; RPTPrho; tyrosine phosphatase 1b; tyrosine-phosphatase; Tyrosine-protein phosphatase non-receptor type 1
基因别名: Ptp; PTP-1B; PTP-HA2; PTP1B; PTPN1
UniProt ID: (Human) P18031, (Rat) P20417, (Mouse) P35821
Entrez Gene ID: (Human) 5770, (Rat) 24697, (Mouse) 19246