P62140 (PP1B_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 112.
History...
Names·Attributes·General annotation·Ontologies·Interactions·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Interactions·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Serine/threonine-protein phosphatase PP1-beta catalytic subunit Short name=PP-1B Short name=PPP1CD EC=3.1.3.16 EC=3.1.3.53 | ||
| Gene names |
| ||
| Organism | Homo sapiens (Human) [Reference proteome] | ||
| Taxonomic identifier | 9606 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo![]() |
Protein attributes
| Sequence length | 327 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | 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. Ref.20 |
| Catalytic activity | A phosphoprotein + H2O = a protein + phosphate. [Myosin light-chain] phosphate + H2O = [myosin light-chain] + phosphate. |
| Cofactor | Binds 1 iron ion per subunit By similarity. Binds 1 manganese ion per subunit By similarity. |
| Enzyme regulation | Inhibited by the toxins okadaic acid, tautomycin and microcystin Leu-Arg By similarity. The phosphatase activity of the PPP1R15A-PP1 complex toward EIF2S1 is specifically inhibited by Salubrinal, a drug that protects cells from endoplasmic reticulum stress. Ref.16 |
| Subunit structure | 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. The targeting or regulatory subunits determine the substrate specificity of PP1. PPP1R12A, PPP1R12B and PPP1R12C mediate binding to myosin. PPP1R3A (in skeletal muscle), PPP1R3B (in liver), PPP1R3C, PPP1R3D and PPP1R3F (in brain) mediate binding to glycogen. Part of a complex containing PPP1R15B, PP1 and NCK1/2 By similarity. Component of the MLL5-L complex, at least composed of MLL5, STK38, PPP1CA, PPP1CB, PPP1CC, HCFC1, ACTB and OGT. Interacts with PPP1R7 and PPP1R12C. PPP1R15A and PPP1R15B mediate binding to EIF2S1. Interacts with PPP1R16B. Component of the PTW/PP1 phosphatase complex, composed of PPP1R10/PNUTS, TOX4, WDR82, and PPP1CA or PPP1CB or PPP1CC. Interacts with PPP1R8. Interacts with TRIM28; the interaction is weak. Interacts with PPP1R12A and NUAK1; the interaction is direct. Ref.12 Ref.14 Ref.15 Ref.17 Ref.19 Ref.20 Ref.21 Ref.22 |
| Subcellular location | Cytoplasm. Nucleus. Nucleus › nucleoplasm. Nucleus › nucleolus. Note: Highly mobile in cells and can be relocalized through interaction with targeting subunits. In the presence of PPP1R8 relocalizes from the nucleus to nuclear speckles. Ref.13 |
| Sequence similarities | Belongs to the PPP phosphatase family. PP-1 subfamily. |
Ontologies
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| BRCA1 | P38398 | 3 | EBI-352350,EBI-349905 | |
| Clock | O08785 | 2 | EBI-352350,EBI-79859 | From a different organism. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Initiator methionine | 1 | 1 | Removed Ref.11 | ||||||
| Chain | 2 – 327 | 326 | Serine/threonine-protein phosphatase PP1-beta catalytic subunit | PRO_0000058779 | |||||
Sites | |||||||||
| Active site | 124 | 1 | Proton donor By similarity | ||||||
| Metal binding | 63 | 1 | Iron By similarity | ||||||
| Metal binding | 65 | 1 | Iron By similarity | ||||||
| Metal binding | 91 | 1 | Iron By similarity | ||||||
| Metal binding | 91 | 1 | Manganese By similarity | ||||||
| Metal binding | 123 | 1 | Manganese By similarity | ||||||
| Metal binding | 172 | 1 | Manganese By similarity | ||||||
| Metal binding | 247 | 1 | Manganese By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 2 | 1 | N-acetylalanine Ref.11 | ||||||
| Modified residue | 316 | 1 | Phosphothreonine Ref.18 | ||||||
Experimental info | |||||||||
| Sequence conflict | 51 | 1 | L → P in AAV38549. Ref.5 | ||||||
Sequences
| ||||||||||||||||||
References
| « Hide 'large scale' references | |
| [1] | "Three genes for protein phosphatase 1 map to different human chromosomes: sequence, expression and gene localisation of protein serine/threonine phosphatase 1 beta (PPP1CB)." Barker H.M., Brewis N.D., Street A.J., Spurr N.K., Cohen P.T.W. Biochim. Biophys. Acta 1220:212-218(1994) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. |
| [2] | "Molecular and linkage analysis of type-1 protein phosphatase catalytic beta-subunit gene: lack of evidence for its major role in insulin resistance in Pima Indians." Prochazka M., Mochizuki H., Baier L.J., Cohen P.T.W., Bogardus C. Diabetologia 38:461-466(1995) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]. |
| [3] | "Characterization of the protein phosphatase 1 catalytic subunit in endothelium: involvement in contractile responses." Verin A.D., Csortos C., Durbin S.D., Aydanyan A., Wang P., Patterson C.E., Garcia J.G. J. Cell. Biochem. 79:113-125(2000) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. Tissue: Umbilical vein. |
| [4] | "Cloning of human full open reading frames in Gateway(TM) system entry vector (pDONR201)." Halleck A., Ebert L., Mkoundinya M., Schick M., Eisenstein S., Neubert P., Kstrang K., Schatten R., Shen B., Henze S., Mar W., Korn B., Zuo D., Hu Y., LaBaer J. Submitted (JUN-2004) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. |
| [5] | "Cloning of human full-length CDSs in BD Creator(TM) system donor vector." Kalnine N., Chen X., Rolfs A., Halleck A., Hines L., Eisenstein S., Koundinya M., Raphael J., Moreira D., Kelley T., LaBaer J., Lin Y., Phelan M., Farmer A. Submitted (OCT-2004) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. |
| [6] | "Complete sequencing and characterization of 21,243 full-length human cDNAs." Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S. Sugano S.Nat. Genet. 36:40-45(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Tissue: Cerebellum. |
| [7] | "The full-ORF clone resource of the German cDNA consortium." Bechtel S., Rosenfelder H., Duda A., Schmidt C.P., Ernst U., Wellenreuther R., Mehrle A., Schuster C., Bahr A., Bloecker H., Heubner D., Hoerlein A., Michel G., Wedler H., Koehrer K., Ottenwaelder B., Poustka A., Wiemann S., Schupp I. BMC Genomics 8:399-399(2007) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Tissue: Endometrium. |
| [8] | "Generation and annotation of the DNA sequences of human chromosomes 2 and 4." Hillier L.W., Graves T.A., Fulton R.S., Fulton L.A., Pepin K.H., Minx P., Wagner-McPherson C., Layman D., Wylie K., Sekhon M., Becker M.C., Fewell G.A., Delehaunty K.D., Miner T.L., Nash W.E., Kremitzki C., Oddy L., Du H. Wilson R.K.Nature 434:724-731(2005) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [9] | Mural R.J., Istrail S., Sutton G.G., Florea L., Halpern A.L., Mobarry C.M., Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., Turner R. Venter J.C.Submitted (SEP-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [10] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Tissue: Uterus. |
| [11] | "Exploring proteomes and analyzing protein processing by mass spectrometric identification of sorted N-terminal peptides." Gevaert K., Goethals M., Martens L., Van Damme J., Staes A., Thomas G.R., Vandekerckhove J. Nat. Biotechnol. 21:566-569(2003) [PubMed] [Europe PMC] [Abstract] Cited for: PROTEIN SEQUENCE OF 2-14, ACETYLATION AT ALA-2. Tissue: Platelet. |
| [12] | "Phosphorylation of a novel myosin binding subunit of protein phosphatase 1 reveals a conserved mechanism in the regulation of actin cytoskeleton." Tan I., Ng C.H., Lim L., Leung T. J. Biol. Chem. 276:21209-21216(2001) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH PPP1R12C. |
| [13] | "Dynamic targeting of protein phosphatase 1 within the nuclei of living mammalian cells." Trinkle-Mulcahy L., Sleeman J.E., Lamond A.I. J. Cell Sci. 114:4219-4228(2001) [PubMed] [Europe PMC] [Abstract] Cited for: SUBCELLULAR LOCATION. |
| [14] | "Growth arrest and DNA damage-inducible protein GADD34 assembles a novel signaling complex containing protein phosphatase 1 and inhibitor 1." Connor J.H., Weiser D.C., Li S., Hallenbeck J.M., Shenolikar S. Mol. Cell. Biol. 21:6841-6850(2001) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH PPP1R15A. |
| [15] | "Binding of the concave surface of the Sds22 superhelix to the alpha 4/alpha 5/alpha 6-triangle of protein phosphatase-1." Ceulemans H., Vulsteke V., De Maeyer M., Tatchell K., Stalmans W., Bollen M. J. Biol. Chem. 277:47331-47337(2002) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH PPP1R7. |
| [16] | "A selective inhibitor of eIF2alpha dephosphorylation protects cells from ER stress." Boyce M., Bryant K.F., Jousse C., Long K., Harding H.P., Scheuner D., Kaufman R.J., Ma D., Coen D.M., Ron D., Yuan J. Science 307:935-939(2005) [PubMed] [Europe PMC] [Abstract] Cited for: ENZYME REGULATION. |
| [17] | "TIMAP is a positive regulator of pulmonary endothelial barrier function." Csortos C., Czikora I., Bogatcheva N.V., Adyshev D.M., Poirier C., Olah G., Verin A.D. Am. J. Physiol. 295:L440-L450(2008) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH PPP1R16B. |
| [18] | "A quantitative atlas of mitotic phosphorylation." Dephoure N., Zhou C., Villen J., Beausoleil S.A., Bakalarski C.E., Elledge S.J., Gygi S.P. Proc. Natl. Acad. Sci. U.S.A. 105:10762-10767(2008) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT THR-316, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [19] | "GlcNAcylation of a histone methyltransferase in retinoic-acid-induced granulopoiesis." Fujiki R., Chikanishi T., Hashiba W., Ito H., Takada I., Roeder R.G., Kitagawa H., Kato S. Nature 459:455-459(2009) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION IN THE MLL5-L COMPLEX. |
| [20] | "Identification and characterization of a novel human PP1 phosphatase complex." Lee J.H., You J., Dobrota E., Skalnik D.G. J. Biol. Chem. 285:24466-24476(2010) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION IN THE PTW/PP1 PHOSPHATASE COMPLEX, FUNCTION, INTERACTION WITH PPP1R8. |
| [21] | "New roles for the LKB1-NUAK pathway in controlling myosin phosphatase complexes and cell adhesion." Zagorska A., Deak M., Campbell D.G., Banerjee S., Hirano M., Aizawa S., Prescott A.R., Alessi D.R. Sci. Signal. 3:RA25-RA25(2010) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH NUAK1 AND PPP1R12A. |
| [22] | "SUMOylation of the transcriptional co-repressor KAP1 is regulated by the serine and threonine phosphatase PP1." Li X., Lin H.H., Chen H., Xu X., Shih H.M., Ann D.K. Sci. Signal. 3:RA32-RA32(2010) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH TRIM28. |
| [23] | "Initial characterization of the human central proteome." Burkard T.R., Planyavsky M., Kaupe I., Breitwieser F.P., Buerckstuemmer T., Bennett K.L., Superti-Furga G., Colinge J. BMC Syst. Biol. 5:17-17(2011) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. |
| + | Additional computationally mapped references. |
Web resources
| Protein Spotlight The things we forget - Issue 32 of March 2003 |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | X80910 mRNA. Translation: CAA56870.1. U11005 U11004 Genomic DNA. Translation: AAA85093.1.AF092905 mRNA. Translation: AAF01137.1. CR542263 mRNA. Translation: CAG47059.1. CR542285 mRNA. Translation: CAG47080.1. BT019744 mRNA. Translation: AAV38549.1. AK312329 mRNA. Translation: BAG35251.1. BX647970 mRNA. No translation available. AC097724 Genomic DNA. Translation: AAY24124.1. CH471053 Genomic DNA. Translation: EAX00527.1. CH471053 Genomic DNA. Translation: EAX00528.1. CH471053 Genomic DNA. Translation: EAX00529.1. CH471053 Genomic DNA. Translation: EAX00530.1. BC002697 mRNA. Translation: AAH02697.1. BC012045 mRNA. Translation: AAH12045.1. |
| IPI | IPI00218236. |
| PIR | S41052. |
| RefSeq | NP_002700.1. NM_002709.2. NP_996759.1. NM_206876.1. |
| UniGene | Hs.591571. Hs.702907. |
3D structure databases | |
| ProteinModelPortal | P62140. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | P62140. 23 interactions. |
| MINT | MINT-208135. |
| STRING | 9606.ENSP00000296122. |
PTM databases | |
| PhosphoSite | P62140. |
Polymorphism databases | |
| DMDM | 49065814. |
2D gel databases | |
| OGP | P37140. |
Proteomic databases | |
| PaxDb | P62140. |
| PRIDE | P62140. |
Protocols and materials databases | |
| DNASU | 5500. |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000296122; ENSP00000296122; ENSG00000213639. ENST00000358506; ENSP00000351298; ENSG00000213639. ENST00000395366; ENSP00000378769; ENSG00000213639. |
| GeneID | 5500. |
| KEGG | hsa:5500. |
| UCSC | uc002rmg.3. human. |
Organism-specific databases | |
| CTD | 5500. |
| GeneCards | GC02P028974. |
| HGNC | HGNC:9282. PPP1CB. |
| HPA | CAB022558. |
| MIM | 600590. gene. |
| neXtProt | NX_P62140. |
| PharmGKB | PA33610. |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | COG0639. |
| HOGENOM | HOG000172697. |
| HOVERGEN | HBG000216. |
| InParanoid | P62140. |
| KO | K06269. |
| OMA | PDLQGME. |
| PhylomeDB | P62140. |
Enzyme and pathway databases | |
| Reactome | REACT_111102. Signal Transduction. REACT_111217. Metabolism. |
Gene expression databases | |
| ArrayExpress | P62140. |
| Bgee | P62140. |
| CleanEx | HS_PPP1CB. |
| Genevestigator | P62140. |
| GermOnline | ENSG00000163806. Homo sapiens. |
Family and domain databases | |
| InterPro | IPR004843. Metallo_PEstase_dom. IPR006186. Ser/Thr-sp_prot-phosphatase. [Graphical view] |
| Pfam | PF00149. Metallophos. 1 hit. [Graphical view] |
| PRINTS | PR00114. STPHPHTASE. |
| SMART | SM00156. PP2Ac. 1 hit. [Graphical view] |
| PROSITE | PS00125. SER_THR_PHOSPHATASE. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| BindingDB | P62140. |
| ChEMBL | CHEMBL4546. |
| ChiTaRS | PPP1CB. human. |
| GenomeRNAi | 5500. |
| NextBio | 21280. |
| SOURCE | Search... |
Entry information
| Entry name | PP1B_HUMAN | ||||||||
| Accession | Primary (citable) accession number: P62140 Secondary accession number(s): B2R5V4 Q6FG45 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | ||||||||
Relevant documents
| Human chromosome 2 Human chromosome 2: entries, gene names and cross-references to MIM |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |
| Protein Spotlight Protein Spotlight articles and cited UniProtKB/Swiss-Prot entries |

Clusters with
