PPP2R5C
La sérine/thréonine-protéine phosphatase 2A 56 kDa, sous-unité régulatrice de l'isoforme gamma, est une enzyme qui, chez l'homme, est codée par le gène PPP2R5C[5],[6].
Fonction
Le produit de ce gène appartient à la famille des sous-unités régulatrices Protéine phosphatase 2A. Protéine phosphatase 2A est l'une des quatre principales phosphatases Ser / Thr et elle est impliquée dans le contrôle négatif de la croissance et de la division cellulaires. Il est constitué d'une enzyme centrale hétéromérique commune, composée d'une sous-unité catalytique et d'une sous-unité régulatrice constante, qui s'associe à diverses sous-unités de régulation. La sous-unité de régulation B pourrait moduler la sélectivité du substrat et l'activité catalytique. Ce gène code une isoforme gamma de la sous-famille régulatrice B56. Des variantes de transcription épissées alternativement codant différentes isoformes ont été identifiées.
Interactions
Il a été démontré que PPP2R5C interagit avec PPP2R1B[7], PPP2CA[7],[8],[9] et PPP2R5A[10].
Sources
- GRCh38: Ensembl release 89: ENSG00000078304 - Ensembl, May 2017
- GRCm38: Ensembl release 89: ENSMUSG00000017843 - Ensembl, May 2017
- ↑ « Publications PubMed pour l'Homme », sur National Center for Biotechnology Information, U.S. National Library of Medicine
- ↑ « Publications PubMed pour la Souris », sur National Center for Biotechnology Information, U.S. National Library of Medicine
- ↑ B. McCright et D. M. Virshup, « Identification of a new family of protein phosphatase 2A regulatory subunits », The Journal of Biological Chemistry, vol. 270, no 44, , p. 26123–8 (PMID 7592815, DOI 10.1074/jbc.270.44.26123)
- ↑ « Entrez Gene: PPP2R5C protein phosphatase 2, regulatory subunit B', gamma isoform »
- B. McCright, A. M. Rivers, S. Audlin et D. M. Virshup, « The B56 family of protein phosphatase 2A (PP2A) regulatory subunits encodes differentiation-induced phosphoproteins that target PP2A to both nucleus and cytoplasm », The Journal of Biological Chemistry, vol. 271, no 36, , p. 22081–9 (PMID 8703017, DOI 10.1074/jbc.271.36.22081)
- ↑ A. Ito, T. R. Kataoka, M. Watanabe, K. Nishiyama, Y. Mazaki, H. Sabe, Y. Kitamura et H. Nojima, « A truncated isoform of the PP2A B56 subunit promotes cell motility through paxillin phosphorylation », The EMBO Journal, vol. 19, no 4, , p. 562–71 (PMID 10675325, PMCID 305594, DOI 10.1093/emboj/19.4.562)
- ↑ M. Goudreault, L. M. D'Ambrosio, M. J. Kean, M. J. Mullin, B. G. Larsen, A. Sanchez, S. Chaudhry, G. I. Chen, F. Sicheri, A. I. Nesvizhskii, R. Aebersold, B. Raught et A. C. Gingras, « A PP2A phosphatase high density interaction network identifies a novel striatin-interacting phosphatase and kinase complex linked to the cerebral cavernous malformation 3 (CCM3) protein », Molecular & Cellular Proteomics, vol. 8, no 1, , p. 157–71 (PMID 18782753, PMCID 2621004, DOI 10.1074/mcp.M800266-MCP200)
- ↑ S. Strack, R. Ruediger, G. Walter, R. K. Dagda, C. A. Barwacz et J. T. Cribbs, « Protein phosphatase 2A holoenzyme assembly: identification of contacts between B-family regulatory and scaffolding A subunits », The Journal of Biological Chemistry, vol. 277, no 23, , p. 20750–5 (PMID 11929880, DOI 10.1074/jbc.M202992200)
Bibliographie
- E. Le Rouzic et S. Benichou, « The Vpr protein from HIV-1: distinct roles along the viral life cycle », Retrovirology, vol. 2, , p. 11 (PMID 15725353, PMCID 554975, DOI 10.1186/1742-4690-2-11)
- R. Y. Zhao et R. T. Elder, « Viral infections and cell cycle G2/M regulation », Cell Research, vol. 15, no 3, , p. 143–9 (PMID 15780175, DOI 10.1038/sj.cr.7290279)
- R. Y. Zhao, M. Bukrinsky et R. T. Elder, « HIV-1 viral protein R (Vpr) & host cellular responses », The Indian Journal of Medical Research, vol. 121, no 4, , p. 270–86 (PMID 15817944)
- N. Nomura, N. Miyajima, T. Sazuka, A. Tanaka, Y. Kawarabayasi, S. Sato, T. Nagase, N. Seki, K. Ishikawa et S. Tabata, « Prediction of the coding sequences of unidentified human genes. I. The coding sequences of 40 new genes (KIAA0001-KIAA0040) deduced by analysis of randomly sampled cDNA clones from human immature myeloid cell line KG-1 », DNA Research, vol. 1, no 1, , p. 27–35 (PMID 7584026, DOI 10.1093/dnares/1.1.27)
- N. Nomura, T. Nagase, N. Miyajima, T. Sazuka, A. Tanaka, S. Sato, N. Seki, Y. Kawarabayasi, K. Ishikawa et S. Tabata, « Prediction of the coding sequences of unidentified human genes. II. The coding sequences of 40 new genes (KIAA0041-KIAA0080) deduced by analysis of cDNA clones from human cell line KG-1 », DNA Research, vol. 1, no 5, , p. 223–9 (PMID 7584044, DOI 10.1093/dnares/1.5.223)
- N. Akiyama, H. Shima, Y. Hatano, Y. Osawa, T. Sugimura et M. Nagao, « cDNA cloning of BR gamma, a novel brain-specific isoform of the B regulatory subunit of type-2A protein phosphatase », European Journal of Biochemistry / FEBS, vol. 230, no 2, , p. 766–72 (PMID 7607250, DOI 10.1111/j.1432-1033.1995.tb20619.x)
- M. A. Tehrani, M. C. Mumby et C. Kamibayashi, « Identification of a novel protein phosphatase 2A regulatory subunit highly expressed in muscle », The Journal of Biological Chemistry, vol. 271, no 9, , p. 5164–70 (PMID 8617797, DOI 10.1074/jbc.271.9.5164)
- S. Zolnierowicz, C. Van Hoof, N. Andjelković, P. Cron, I. Stevens, W. Merlevede, J. Goris et B. A. Hemmings, « The variable subunit associated with protein phosphatase 2A0 defines a novel multimember family of regulatory subunits », The Biochemical Journal, vol. 317, no Pt 1, , p. 187–94 (PMID 8694763, PMCID 1217462, DOI 10.1042/bj3170187)
- B. McCright, A. M. Rivers, S. Audlin et D. M. Virshup, « The B56 family of protein phosphatase 2A (PP2A) regulatory subunits encodes differentiation-induced phosphoproteins that target PP2A to both nucleus and cytoplasm », The Journal of Biological Chemistry, vol. 271, no 36, , p. 22081–9 (PMID 8703017, DOI 10.1074/jbc.271.36.22081)
- B. McCright, A. R. Brothman et D. M. Virshup, « Assignment of human protein phosphatase 2A regulatory subunit genes b56alpha, b56beta, b56gamma, b56delta, and b56epsilon (PPP2R5A-PPP2R5E), highly expressed in muscle and brain, to chromosome regions 1q41, 11q12, 3p21, 6p21.1, and 7p11.2 → p12 », Genomics, vol. 36, no 1, , p. 168–70 (PMID 8812429, DOI 10.1006/geno.1996.0438)
- H. Y. Tung, R. De, H. ocquigny, L. J. Zhao, X. Cayla, B. P. Roques et R. Ozon, « Direct activation of protein phosphatase-2A0 by HIV-1 encoded protein complex NCp7:vpr », FEBS Letters, vol. 401, nos 2-3, , p. 197–201 (PMID 9013886, DOI 10.1016/S0014-5793(96)01470-6)
- R. Ruediger, N. Brewis, K. Ohst et G. Walter, « Increasing the ratio of PP2A core enzyme to holoenzyme inhibits Tat-stimulated HIV-1 transcription and virus production », Virology, vol. 238, no 2, , p. 432–43 (PMID 9400615, DOI 10.1006/viro.1997.8873)
- M. J. Scanlan, J. D. Gordan, B. Williamson, E. Stockert, N. H. Bander, V. Jongeneel, A. O. Gure, D. Jäger, E. Jäger, A. Knuth, Y. T. Chen et L. J. Old, « Antigens recognized by autologous antibody in patients with renal-cell carcinoma », International Journal of Cancer, vol. 83, no 4, , p. 456–64 (PMID 10508479, DOI 10.1002/(SICI)1097-0215(19991112)83:4<456::AID-IJC4>3.0.CO;2-5)
- A. Ito, T. R. Kataoka, M. Watanabe, K. Nishiyama, Y. Mazaki, H. Sabe, Y. Kitamura et H. Nojima, « A truncated isoform of the PP2A B56 subunit promotes cell motility through paxillin phosphorylation », The EMBO Journal, vol. 19, no 4, , p. 562–71 (PMID 10675325, PMCID 305594, DOI 10.1093/emboj/19.4.562)
- S. Ikeda, M. Kishida, Y. Matsuura, H. Usui et A. Kikuchi, « GSK-3beta-dependent phosphorylation of adenomatous polyposis coli gene product can be modulated by beta-catenin and protein phosphatase 2A complexed with Axin », Oncogene, vol. 19, no 4, , p. 537–45 (PMID 10698523, DOI 10.1038/sj.onc.1203359)
- R. T. Elder, M. Yu, M. Chen, X. Zhu, M. Yanagida et Y. Zhao, « HIV-1 Vpr induces cell cycle G2 arrest in fission yeast (Schizosaccharomyces pombe) through a pathway involving regulatory and catalytic subunits of PP2A and acting on both Wee1 and Cdc25 », Virology, vol. 287, no 2, , p. 359–70 (PMID 11531413, DOI 10.1006/viro.2001.1007)
- S. Muneer, V. Ramalingam, R. Wyatt, R. A. Schultz, J. D. Minna et C. Kamibayashi, « Genomic organization and mapping of the gene encoding the PP2A B56gamma regulatory subunit », Genomics, vol. 79, no 3, , p. 344–8 (PMID 11863364, DOI 10.1006/geno.2002.6721)
- S. Strack, R. Ruediger, G. Walter, R. K. Dagda, C. A. Barwacz et J. T. Cribbs, « Protein phosphatase 2A holoenzyme assembly: identification of contacts between B-family regulatory and scaffolding A subunits », The Journal of Biological Chemistry, vol. 277, no 23, , p. 20750–5 (PMID 11929880, DOI 10.1074/jbc.M202992200)
Associations
En France une association vient en aide à un enfant porteur de cette particularité génétique : Un pas vers l'autonomie [1]
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