Database for Annotation, Visualization and Integrated Discovery 2.1
National Institute of Allergy and Infectious Disease
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protein phosphatase 1 catalytic subunit beta(PPP1CB) protein phosphatase 1 catalytic subunit beta(PPP1CB) Related Genes Homo sapiens
CYTOBAND 2p23, 2p23.2,
GENERIF_SUMMARY In this study, we show that protein phosphatase-1 (PP1) inhibitor-3 (Inh3) is localized to the nucleoli and centrosomes in interphase HEK 293 cells., R16A at the membrane may mediate the PB signal to initiate CAR nuclear translocation, through a mechanism including its dimerization and inhibition of PP1beta activity., PP-1 ( PP-1alpha or PP-1beta ) acts as a major phosphatase to dephosphorylate AKT1 at Thr-450 and thus modulate its functions in regulating gene expression, cell survival and differentiation., mammalian Wdr82 functions in a variety of cellular processes; PTW/PP1 phosphatase complex (PNUTS, Tox4, Wdr82, PP1) has a role in the regulation of chromatin structure during the transition from mitosis into interphase, serine/threonine protein phosphatase PP1beta is a physiological Nucleophosmin (NPM) phosphatase under both the genotoxic stress and growth conditions., Data suggest that double-thiophosphorylation of TIMAP has minor effect on its binding ability to PP1c, but considerably attenuates its inhibitory effect on the activity of PP1c., PPP1CB is over expressed in malignant melanoma., Protein phosphatase 1beta (PP1beta) is identified as a phosphatase for the cluster of phosphorylated threonines ((353)TTETQRT(359)) within the sst(2A) somatostatin receptor carboxyl terminus that mediates beta-arrestin binding using siRNA knock-down screening., Studies suggest that any change in substrate specificity of the spinophilin , Studies indicate that the Ser/Thr phosphatases PP1 and PP2A are responsible for the dephosphorylation and activation of Rb proteins., Studies indicate that the diversity of the PP1 interactome and the properties of the PP1 binding code account for the exquisite specificity of PP1 in vivo., These findings provide evidence for the involvement of a particular PP1 complex, PPP1R12A/PP1cdelta, in insulin signaling., Interaction between protein phosphatase 1 beta and myosin phosphatase (MYPT)1 results in exclusion of Nkx2.5 from the cell nucleus., PPP1C isoforms have distinct contribution to the outside-in alphaIIbbeta3 signalling-dependent functions in HEK293 alphaIIbbeta3 cells., results indicate that SCN-iPS cells provide a useful disease model for SCN, and the activation of the Wnt3a/beta-catenin pathway may offer a novel therapy for SCN with ELANE mutation, In the title., Findings show that PP1cbeta plays a role in endothelial cell migration through a mechanism involving the interplay of actin cytoskeleton proteins and focal adhesion molecules signaling., These results suggest a unique functional role for the PP1beta isoform in affecting cardiac contractile function,
SP_COMMENT catalytic activity:A phosphoprotein + H(2)O = a protein + phosphate., cofactor:Binds 1 iron ion per subunit., cofactor:Binds 1 manganese ion per subunit., domain:The C-terminus is required for CDK2-activation, but not CDK2-binding., enzyme regulation:The phosphatase activity of the PPP1R15A-PP1 complex toward EIF2S1 is specifically inhibited by Salubrinal, a drug that protects cells from endoplasmic reticulum stress., function: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., function:Regulates the G1/S phase transition of the cell cycle by binding and activating CDC2, CDK2 and CDKN1B/KIP1. Can activate CDK2 without promoting CDK2 phosphorylation. Mediates cell survival during the DNA damage process through activation of CDK2., online information:The things we forget -Issue 32 of March 2003, similarity:Belongs to the PPP phosphatase family. PP-1 subfamily., similarity:Belongs to the Speedy/Ringo family., subunit:Interacts with CDC2, CDK2 and CDKN1B/KIP1. Found in a complex with both CDK2 and CDKN1B/KIP1., subunit:PP1 comprises a catalytic subunit, PPP1CA, PPP1CB or PPP1CC, which is folded into its native form by inhibitor 2 and glycogen synthetase kinase 3, and then complexed to one or several targeting or regulatory subunits. PPP1R12A, PPP1R12B and PPP1R12C mediate binding to myosin. PPP1R3A, PPP1R3B, PPP1R3C and PPP1R3D mediate binding to glycogen. Part of a complex containing PPP1R15B, PP1 and NCK1/2 (By similarity). Interacts with PPP1R7 and PPP1R12C. PPP1R15A and PPP1R15B mediate binding to EIF2S1., tissue specificity:Highly expressed in testis. Expressed at a low level in wide range of tissues including bone marrow, brain, heart, kidney, colon, liver, placenta, spleen, skeletal muscle, salivary gland, thyroid gland, thymus, trachea and uterus. Expressed at a slightly higher level in adrenal gland, cerebellum, small intestine, lung, prostate and trachea. Expression is cell cycle-dependent, being restricted to cells in G1/S phase.,