Aliases for PPP1R12A Gene
External Ids for PPP1R12A Gene
Previous HGNC Symbols for PPP1R12A Gene
Previous GeneCards Identifiers for PPP1R12A Gene
Myosin phosphatase target subunit 1, which is also called the myosin-binding subunit of myosin phosphatase, is one of the subunits of myosin phosphatase. Myosin phosphatase regulates the interaction of actin and myosin downstream of the guanosine triphosphatase Rho. The small guanosine triphosphatase Rho is implicated in myosin light chain (MLC) phosphorylation, which results in contraction of smooth muscle and interaction of actin and myosin in nonmuscle cells. The guanosine triphosphate (GTP)-bound, active form of RhoA (GTP.RhoA) specifically interacted with the myosin-binding subunit (MBS) of myosin phosphatase, which regulates the extent of phosphorylation of MLC. Rho-associated kinase (Rho-kinase), which is activated by GTP. RhoA, phosphorylated MBS and consequently inactivated myosin phosphatase. Overexpression of RhoA or activated RhoA in NIH 3T3 cells increased phosphorylation of MBS and MLC. Thus, Rho appears to inhibit myosin phosphatase through the action of Rho-kinase. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2009]
GeneCards Summary for PPP1R12A Gene
PPP1R12A (Protein Phosphatase 1 Regulatory Subunit 12A) is a Protein Coding gene. Diseases associated with PPP1R12A include Infratentorial Cancer and Lacrimal Apparatus Disease. Among its related pathways are Cytoskeleton remodeling Regulation of actin cytoskeleton by Rho GTPases and Focal Adhesion. Gene Ontology (GO) annotations related to this gene include protein kinase binding and enzyme inhibitor activity. An important paralog of this gene is PPP1R12B.
UniProtKB/Swiss-Prot for PPP1R12A Gene
Key regulator of protein phosphatase 1C (PPP1C). Mediates binding to myosin. As part of the PPP1C complex, involved in dephosphorylation of PLK1. Capable of inhibiting HIF1AN-dependent suppression of HIF1A activity.