Protein-Tyrosine-Phosphatase

PTPase 1B; Phosphotyrosyl Histone Phosphatase; Phosphotyrosyl Protein Phosphatase; Protein-Tyrosine Phosphatase; Histone Phosphatase, Phosphotyrosyl; Phosphatase, Phosphotyrosine; Phosphatase, Phosphotyrosyl Histone; Phosphatase, Phosphotyrosyl Protein
An enzyme group that specifically dephosphorylates phosphotyrosyl residues in selected proteins. Together with PROTEIN-TYROSINE KINASE, it regulates tyrosine phosphorylation and dephosphorylation in cellular signal transduction and may play a role in cell growth control and carcinogenesis. EC 3.1.3.48.