myosin phosphatase target subunit 1, a regulatory subunit of protein phosphatase 1. Also called the myosin-binding subunit of myosin phosphatase. Myosin phosphatase regulates the interaction of actin and myosin downstream of the guanosine triphosphatase Rho. Four splice-variant isoforms have been described. Note: This description may include information from UniProtKB.
Protein type: Motility/polarity/chemotaxis; Protein phosphatase, regulatory subunit
Cellular Component: A band; actin cytoskeleton; centrosome; contractile fiber; cytosol; focal adhesion; kinetochore; nucleoplasm; Z disc
Molecular Function: enzyme inhibitor activity; phosphatase regulator activity; protein binding; protein kinase binding
Biological Process: centrosome cycle; G2/M transition of mitotic cell cycle; mitotic cell cycle; negative regulation of catalytic activity; positive regulation of transcription from RNA polymerase II promoter; protein amino acid dephosphorylation; regulation of cell adhesion