Function:Regulates myosin phosphatase activity. ,PTM:Phosphorylated by CIT (Rho-associated kinase) (By similarity) . Phosphorylated cooperatively by ROCK1 and CDC42BP on Thr-696. Phosphorylated on upon DNA damage , probably by ATM or ATR. ,sequence Caution:Contaminating sequence. Potential poly-A sequence. ,similarity:Contains 6 ANK repeats. ,subcellular location:Along actomyosin filaments and stress fibers. ,subunit:PP1 comprises a catalytic subunit , PPP1CA , PPP1CB or PPP1CC , and one or several targeting or regulatory subunits. PPP1R12A mediates binding to myosin. Interacts with ARHA and CIT (By similarity) . Binds PPP1R12B , ROCK1 and IL16. ,
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