| Tissue Specificity | Highly expressed in the liver and, at lower levels, in skeletal muscle, including in vastus lateralis, gastrocnemius and soleus (at protein level). Highest mRNA levels are observed in skeletal muscle, and only moderate levels in liver and heart. Weak expression in placenta and lung. |
| Function | 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. |
| Protein Name | Protein Phosphatase 1 Regulatory Subunit 3bHepatic Glycogen-Targeting Protein Phosphatase 1 Regulatory Subunit GlProtein Phosphatase 1 Regulatory Subunit 4Pp1 Subunit R4Protein Phosphatase 1 Subunit GlPtg |
| Alternative Antibody Names | Anti-Protein Phosphatase 1 Regulatory Subunit 3b antibodyAnti-Hepatic Glycogen-Targeting Protein Phosphatase 1 Regulatory Subunit Gl antibodyAnti-Protein Phosphatase 1 Regulatory Subunit 4 antibodyAnti-Pp1 Subunit R4 antibodyAnti-Protein Phosphatase 1 Subunit Gl antibodyAnti-Ptg antibodyAnti-PPP1R3B antibodyAnti-PPP1R4 antibody |
Information sourced from Uniprot.org
