PPP1R3A, Official Symbol PPP1R3Aprovided by HGNC Official Full Name protein phosphatase 1 regulatory subunit 3Aprovided by HGNC Primary source HGNC:HGNC:9291 See related Ensembl:ENSG00000154415 MIM:600917; AllianceGenome:HGNC:9291 Gene type protein coding RefSeq status REVIEWED Organism Homo sapiens Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo Also known as GM; PP1G; PPP1R3 Summary 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, Jul 2008] Expression Restricted expression toward heart (RPKM 17.3) See more Orthologs mouse all