The Enzyme Database

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Accepted name: protein-serine/threonine phosphatase
Reaction: [a protein]-serine/threonine phosphate + H2O = [a protein]-serine/threonine + phosphate
Other name(s): phosphoprotein phosphatase (ambiguous); protein phosphatase-1; protein phosphatase-2A; protein phosphatase-2B; protein phosphatase-2C; protein D phosphatase; phosphospectrin phosphatase; casein phosphatase; Aspergillus awamori acid protein phosphatase; calcineurin; phosphatase 2A; phosphatase 2B; phosphatase II; phosphatase IB; phosphatase C-II; polycation modulated (PCM-) phosphatase; phosphopyruvate dehydrogenase phosphatase; phosphatase SP; branched-chain α-keto acid dehydrogenase phosphatase; BCKDH phosphatase; 3-hydroxy 3-methylglutaryl coenzymeA reductase phosphatase; HMG-CoA reductase phosphatase; phosphatase H-II; phosphatase III; phosphatase I; protein phosphatase; phosphatase IV; phosphoprotein phosphohydrolase
Systematic name: protein-serine/threonine-phosphate phosphohydrolase
Comments: A group of enzymes removing the serine- or threonine-bound phosphate group from a wide range of phosphoproteins, including a number of enzymes that have been phosphorylated under the action of a kinase (cf. EC protein-tyrosine-phosphatase). The spleen enzyme also acts on phenolic phosphates and phosphamides (cf. EC, phosphoamidase).
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 9025-75-6
1.  Deutscher, J., Kessler, U. and Hengstenberg, W. Streptococcal phosphoenolpyruvate: sugar phosphotransferase system: purification and characterization of a phosphoprotein phosphatase which hydrolyzes the phosphoryl bond in seryl-phosphorylated histidine-containing protein. J. Bacteriol. 163 (1985) 1203–1209. [PMID: 2993239]
2.  Ingebritsen, T.S. and Cohen, P. The protein phosphatases involved in cellular regulation. 1. Classification and substrate specificities. Eur. J. Biochem. 132 (1983) 255–261. [DOI] [PMID: 6301824]
3.  Sundarajan, T.A. and Sarma, P.S. Substrate specificity of phosphoprotein phosphatase from spleen. Biochem. J. 71 (1959) 537–544. [PMID: 13638262]
4.  Tonks, N.K. and Cohen, P. The protein phosphatases involved in cellular regulation. Identification of the inhibitor-2 phosphatases in rabbit skeletal muscle. Eur. J. Biochem. 145 (1984) 65–70. [DOI] [PMID: 6092084]
[EC created 1961, modified 1989, modified 2013]

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