Catalytic activity:Protein tyrosine phosphate + H (2) O = protein tyrosine + phosphate. ,developmental stage:Expressed predominantly in G2 phase. ,Function:Functions as a dosage-dependent inducer in mitotic control. It is a tyrosine protein phosphatase required for progression of the cell cycle. It directly dephosphorylates CDC2 and activate its kinase activity. ,PTM:Phosphorylated by CHK1 on Ser-216. This phosphorylation creates a binding site for 14-3-3 protein and inhibits the phosphatase. ,similarity:Belongs to the MPI phosphatase family. ,similarity:Contains 1 rhodanese domain. ,subunit:Interacts with HIV-1 Vpr , thereby inactivating CDC25C phosphatase activity. ,
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