PPP1R3A, PP1G, Protein phosphatase 1 regulatory subunit 3A, Protein phosphatase 1 glycogen-associated regulatory subunit, Protein phosphatase type-1 glycogen targeting subunit

The glycogen-associated form of protein phosphatase-1 (PP1) derived from skeletal muscle is a heterodimer composed of a 37-kD catalytic subunit and a 124-kD targeting and regulatory subunit. This gene encodes the regulatory subunit which binds to muscle glycogen with high affinity, thereby enhancing dephosphorylation of glycogen-bound substrates for PP1 such as glycogen synthase and glycogen phosphorylase kinase. [provided by RefSeq].