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Protein phosphatase 2A (PP2A) is a major intracellular protein phosphatase that regulates multiple aspects of cell growth and metabolism. Phosphorylation enables the activation or The ability of this widely distributed heterotrimeric enzyme to act on a diverse array of substrates is largely controlled by the nature of its regulatory B subunit. There are multiple families of B subunits, this family is called the B56 family. ==Function== Protein phosphatase 2A (PP2A) is a major intracellular protein phosphatase that regulates multiple aspects of cell growth and metabolism such as DNA replication, transcription, translation, cell cycle, development, and apoptosis. In order to exhibit specificity control over catalysis, hetero-oligomers are formed so the catalytic subunits are complexed with regulatory subunits. This helps direct their action towards the cellular substrate. This is the function of the B56 domain. B56 alpha, is additionally thought to play a role in nuclear export. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「B56 domain」の詳細全文を読む スポンサード リンク
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