PPP1CB Protein phosphatase that associates with over 200 regulatory proteins to form highly specific holoenzymes which dephosphorylate hundreds of biological targets. Protein phosphatase (PP1) is essential for cell division, it participates in the regulation of glycogen metabolism, muscle contractility and protein synthesis. Involved in regulation of ionic conductances and long-term synaptic plasticity. Component of the PTW/PP1 phosphatase complex, which plays a role in the control of chromatin structure and cell cycle progression during the transition from mitosis into interphase. In balance with CSNK1D and CSNK1E, determines the circadian period length, through the regulation of the speed and rhythmicity of PER1 and PER2 phosphorylation. May dephosphorylate CSNK1D and CSNK1E. Dephosphorylates the 'Ser-418' residue of FOXP3 in regulatory T-cells (Treg) from patients with rheumatoid arthritis, thereby inactivating FOXP3 and rendering Treg cells functionally defective. Belongs to the PPP phosphatase family. PP-1 subfamily. Note: This description may include information from UniProtKB.
Protein type: EC; EC; Motility/polarity/chemotaxis; Nucleolus; Protein phosphatase, Ser/Thr (non-receptor)
Chromosomal Location of Human Ortholog: 6q13
Cellular Component:  cytoplasm; cytosol; glycogen granule; nuclear chromosome, telomeric region; nucleolus; nucleoplasm; nucleus; plasma membrane; protein phosphatase type 1 complex; PTW/PP1 phosphatase complex
Molecular Function:  metal ion binding; myosin phosphatase activity; myosin-light-chain-phosphatase activity; phosphatase activity; phosphoprotein phosphatase activity; protein binding; protein kinase binding; protein serine/threonine phosphatase activity
Biological Process:  cell division; circadian regulation of gene expression; entrainment of circadian clock by photoperiod; glycogen metabolic process; protein dephosphorylation; regulation of cell adhesion; regulation of circadian rhythm; regulation of glycogen biosynthetic process; regulation of glycogen catabolic process
Reference #:  P62142 (UniProtKB)
Alt. Names/Synonyms: PP-1B; Ppp1cb; protein phosphatase 1, catalytic subunit, beta isoform; protein phosphatase-1a; Serine/threonine-protein phosphatase PP1-beta catalytic subunit
Gene Symbols: Ppp1cb
Molecular weight: 37,187 Da
Basal Isoelectric point: 5.84  Predict pI for various phosphorylation states
CST Pathways:  Growth And Differentiation Control by MAPKs  |  Insulin Receptor Signaling  |  Parkinson's Disease  |  Translation: eIF2
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Protein Structure Not Found.

Cross-references to other databases:  STRING  |  Reactome  |  BioGPS  |  Pfam  |  ENZYME  |  Phospho.ELM  |  NetworKIN  |  UniProtKB  |  Entrez-Gene  |  Ensembl Gene