PPP2R3A

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Identifiers
Aliases
External IDsGeneCards: [1]
Orthologs
SpeciesHumanMouse
Entrez
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RefSeq (mRNA)

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RefSeq (protein)

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Serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit alpha is an enzyme that in humans is encoded by the PPP2R3A gene.[1][2]

Protein phosphatase 2 (formerly named type 2A) is one of the four major Ser/Thr phosphatases and is implicated in the negative control of cell growth and division. Protein phosphatase 2 holoenzymes are heterotrimeric proteins composed of a structural subunit A, a catalytic subunit C, and a regulatory subunit B. The regulatory subunit is encoded by a diverse set of genes that have been grouped into the B/PR55, B'/PR61, and B''/PR72 families. These different regulatory subunits confer distinct enzymatic specificities and intracellular localizations to the holozenzyme. The product of this gene belongs to the B'' family. The B'' family has been further divided into subfamilies. The product of this gene belongs to the alpha subfamily of regulatory subunit B''. Alternative splicing results in multiple transcript variants encoding different isoforms.[2]

Interactions

PPP2R3A has been shown to interact with CDC6[3] and PPP2R4.[3]

References

  1. Hendrix P, Mayer-Jackel RE, Cron P, Goris J, Hofsteenge J, Merlevede W, Hemmings BA (Aug 1993). "Structure and expression of a 72-kDa regulatory subunit of protein phosphatase 2A. Evidence for different size forms produced by alternative splicing". J Biol Chem. 268 (20): 15267–76. PMID 8392071.
  2. 2.0 2.1 "Entrez Gene: PPP2R3A protein phosphatase 2 (formerly 2A), regulatory subunit B'', alpha".
  3. 3.0 3.1 Davis, Anthony J; Yan Zhen; Martinez Bobbie; Mumby Marc C (Jun 2008). "Protein phosphatase 2A is targeted to cell division control protein 6 by a calcium-binding regulatory subunit". J. Biol. Chem. United States. 283 (23): 16104–14. doi:10.1074/jbc.M710313200. ISSN 0021-9258. PMC 2414307. PMID 18397887.

Further reading