Serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B alpha isoform

UniProtKB accession: P63151

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Polymer Entities matching query 32

Go to UniProtKB: P63151

UniProtKB description: Substrate-recognition subunit of protein phosphatase 2A (PP2A) that plays a key role in cell cycle by controlling mitosis entry and exit (PubMed:1849734, PubMed:33108758). Involved in chromosome clustering during late mitosis by mediating dephosphorylation of MKI67 (By similarity). Essential for serine/threonine-protein phosphatase 2A-mediated dephosphorylation of WEE1, preventing its ubiquitin-mediated proteolysis, increasing WEE1 protein levels, and promoting the G2/M checkpoint (PubMed:33108758).

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