Aliases for PPP1R3B Gene
External Ids for PPP1R3B Gene
Previous GeneCards Identifiers for PPP1R3B Gene
This gene encodes the catalytic subunit of the serine/theonine phosphatase, protein phosphatase-1. The encoded protein is expressed in liver and skeletal muscle tissue and may be involved in regulating glycogen synthesis in these tissues. This gene may be a involved in type 2 diabetes and maturity-onset diabetes of the young. Alternate splicing results in multiple transcript variants that encode the same protein.[provided by RefSeq, Jan 2011]
GeneCards Summary for PPP1R3B Gene
PPP1R3B (Protein Phosphatase 1 Regulatory Subunit 3B) is a Protein Coding gene. Diseases associated with PPP1R3B include Maturity-Onset Diabetes Of The Young and Bjornstad Syndrome. Among its related pathways are Activation of cAMP-Dependent PKA and Beta-Adrenergic Signaling. Gene Ontology (GO) annotations related to this gene include enzyme binding and protein phosphatase regulator activity. An important paralog of this gene is PPP1R3C.
UniProtKB/Swiss-Prot Summary for PPP1R3B Gene
Acts as a glycogen-targeting subunit for phosphatase PP1. Facilitates interaction of the PP1 with enzymes of the glycogen metabolism and regulates its activity. Suppresses the rate at which PP1 dephosphorylates (inactivates) glycogen phosphorylase and enhances the rate at which it activates glycogen synthase and therefore limits glycogen breakdown. Its activity is inhibited by PYGL, resulting in inhibition of the glycogen synthase and glycogen phosphorylase phosphatase activities of PP1. Dramatically increases basal and insulin-stimulated glycogen synthesis upon overexpression in hepatocytes (By similarity).