PPP2R5D

Serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit delta isoform is an enzyme that in humans is encoded by the PPP2R5D gene. Mutations in PPP2R5D cause Jordan's syndrome.

PPP2R5D
Identifiers
Aliases	PPP2R5D, B56D, MRD35, protein phosphatase 2 regulatory subunit B'delta, B56delta
External IDs	OMIM: 601646; MGI: 2388481; HomoloGene: 37661; GeneCards: PPP2R5D; OMA:PPP2R5D - orthologs
Gene location (Human) Chr. Chromosome 6 (human) Band 6p21.1 Start 42,984,553 bp End 43,012,342 bp
Gene location (Mouse) Chr. Chromosome 17 (mouse) Band 17 22.9 cM|17 C Start 46,993,917 bp End 47,016,037 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in ganglionic eminence ventricular zone prefrontal cortex smooth muscle tissue right hemisphere of cerebellum stromal cell of endometrium right frontal lobe pancreatic ductal cell gastrocnemius muscle muscle of thigh Top expressed in tail of embryo yolk sac genital tubercle ventricular zone dentate gyrus of hippocampal formation granule cell superior frontal gyrus epiblast neural layer of retina maxillary prominence medial dorsal nucleus More reference expression data BioGPS More reference expression data
Gene ontology Molecular function protein serine/threonine phosphatase activity protein binding protein phosphatase regulator activity phosphoprotein phosphatase activity protein phosphatase activator activity Cellular component cytoplasm cytosol protein phosphatase type 2A complex nucleoplasm nucleus Biological process nervous system development signal transduction positive regulation of protein dephosphorylation protein dephosphorylation regulation of phosphoprotein phosphatase activity negative regulation of peptidyl-threonine phosphorylation regulation of protein autophosphorylation Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 5528 21770 Ensembl ENSG00000112640 ENSMUSG00000059409 UniProt Q14738 n/a RefSeq (mRNA) NM_180977 NM_001270476 NM_006245 NM_180976 NM_009358 NM_001357684 RefSeq (protein) NP_001257405 NP_006236 NP_851307 NP_851308 n/a Location (UCSC) Chr 6: 42.98 – 43.01 Mb Chr 17: 46.99 – 47.02 Mb PubMed search
Wikidata
View/Edit Human View/Edit Mouse

Function

The product of this gene belongs to the phosphatase 2A regulatory subunit B family. Protein phosphatase 2A is one of the four major Ser/Thr phosphatases, and it is implicated in the negative control of cell growth and division. It consists of a common heteromeric core enzyme, which is composed of a catalytic subunit and a constant regulatory subunit, that associates with a variety of regulatory subunits. The B regulatory subunit might modulate substrate selectivity and catalytic activity. This gene encodes a delta isoform of the regulatory subunit B56 subfamily. Alternatively spliced transcript variants encoding different isoforms have been identified.

Interactions

PPP2R5D has been shown to interact with:

• HAND2,
• PPP2CA,
• PPP2R1B, and
• liprin-alpha-1.

Further reading

• Le Rouzic E, Benichou S (2006). "The Vpr protein from HIV-1: distinct roles along the viral life cycle". Retrovirology. 2: 11. doi:10.1186/1742-4690-2-11. PMC 554975. PMID 15725353.
• Zhao RY, Elder RT (2005). "Viral infections and cell cycle G2/M regulation". Cell Res. 15 (3): 143–9. doi:10.1038/sj.cr.7290279. PMID 15780175.
• Zhao RY, Bukrinsky M, Elder RT (2005). "HIV-1 viral protein R (Vpr) & host cellular responses". Indian J. Med. Res. 121 (4): 270–86. PMID 15817944.
• Tanabe O, Nagase T, Murakami T, Nozaki H, Usui H, Nishito Y, Hayashi H, Kagamiyama H, Takeda M (1996). "Molecular cloning of a 74-kDa regulatory subunit (B" or delta) of human protein phosphatase 2A". FEBS Lett. 379 (1): 107–11. doi:10.1016/0014-5793(95)01500-0. PMID 8566219. S2CID 86538311.
• McCright B, Rivers AM, Audlin S, Virshup DM (1996). "The B56 family of protein phosphatase 2A (PP2A) regulatory subunits encodes differentiation-induced phosphoproteins that target PP2A to both nucleus and cytoplasm". J. Biol. Chem. 271 (36): 22081–9. doi:10.1074/jbc.271.36.22081. PMID 8703017.
• McCright B, Brothman AR, Virshup DM (1997). "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. 36 (1): 168–70. doi:10.1006/geno.1996.0438. PMID 8812429.
• Tung HY, De Rocquigny H, Zhao LJ, Cayla X, Roques BP, Ozon R (1997). "Direct activation of protein phosphatase-2A0 by HIV-1 encoded protein complex NCp7:vpr". FEBS Lett. 401 (2–3): 197–201. doi:10.1016/S0014-5793(96)01470-6. PMID 9013886. S2CID 23293768.
• Tanabe O, Gomez GA, Nishito Y, Usui H, Takeda M (1997). "Molecular heterogeneity of the cDNA encoding a 74-kDa regulatory subunit (B" or delta) of human protein phosphatase 2A". FEBS Lett. 408 (1): 52–6. doi:10.1016/S0014-5793(97)00392-X. PMID 9180267. S2CID 83580635.
• Ruediger R, Brewis N, Ohst K, Walter G (1998). "Increasing the ratio of PP2A core enzyme to holoenzyme inhibits Tat-stimulated HIV-1 transcription and virus production". Virology. 238 (2): 432–43. doi:10.1006/viro.1997.8873. PMID 9400615.
• Elder RT, Yu M, Chen M, Zhu X, Yanagida M, Zhao Y (2001). "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. 287 (2): 359–70. doi:10.1006/viro.2001.1007. PMID 11531413.
• Hrimech M, Yao XJ, Branton PE, Cohen EA (2002). "Human immunodeficiency virus type 1 Vpr-mediated G(2) cell cycle arrest: Vpr interferes with cell cycle signaling cascades by interacting with the B subunit of serine/threonine protein phosphatase 2A". EMBO J. 21 (14): 3918. doi:10.1093/emboj/cdf420. PMC 126131. PMID 12110603.
• Firulli BA, Howard MJ, McDaid JR, McIlreavey L, Dionne KM, Centonze VE, Cserjesi P, Virshup DM, Firulli AB (2004). "PKA, PKC, and the protein phosphatase 2A influence HAND factor function: a mechanism for tissue-specific transcriptional regulation". Mol. Cell. 12 (5): 1225–37. doi:10.1016/S1097-2765(03)00425-8. PMID 14636580.
• Surpili MJ, Delben TM, Kobarg J (2004). "Identification of proteins that interact with the central coiled-coil region of the human protein kinase NEK1". Biochemistry. 42 (51): 15369–76. doi:10.1021/bi034575v. PMID 14690447.