Catalytic activity:A phosphoprotein + H (2) O = a protein + phosphate. ,Caution:The sequence shown here is derived from an Ensembl automatic analysis pipeline and should be considered as preliminary data. ,cofactor:Binds 1 iron ion per subunit. ,cofactor:Binds 1 manganese ion per subunit. ,enzyme regulation:The phosphatase activity of the PPP1R15A-PP1 complex toward EIF2S1 is specifically inhibited by Salubrinal , a drug that protects cells from endoplasmic reticulum stress. ,Function:Protein phosphatase 1 (PP1) is essential for cell division , and participates in the regulation of glycogen metabolism , muscle contractility and protein synthesis. Involved in regulation of ionic conductances and long-term synaptic plasticity. May play an important role in dephosphorylating substrates such as the postsynaptic density-associated Ca (2+) /calmodulin dependent protein kinase II. ,online information:The things we forget -Issue 32 of March 2003 ,similarity:Belongs to the PPP phosphatase family. ,similarity:Belongs to the PPP phosphatase family. PP-1 subfamily. ,subunit:PP1 comprises a catalytic subunit , PPP1CA , PPP1CB or PPP1CC , which is folded into its native form by inhibitor 2 and glycogen synthetase kinase 3 , and then complexed to one or several targeting or regulatory subunits. PPP1R12A , PPP1R12B and PPP1R12C mediate binding to myosin. PPP1R3A , PPP1R3B , PPP1R3C and PPP1R3D mediate binding to glycogen. Interacts with PPP1R9A and PPP1R9B. Part of a complex containing PPP1R15B , PP1 and NCK1/2 (By similarity) . Interacts with PPP1R7. PPP1R15A and PPP1R15B mediate binding to EIF2S1. Interacts with HHV-1 ICP34.5. ,
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