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IndraLab
Statements
"Here we demonstrate that cyclin-dependent kinase 2 (CDK2) in association with cyclin A or cyclin E directly binds to beta-catenin. In vivo and in vitro kinase assays with cyclin-CDK2 demonstrate beta-catenin phosphorylation on residues Ser(33), Ser(37), Thr(41), and Ser(45). This phosphorylation promotes rapid degradation of cytosolic beta-catenin via the beta-TrCP-mediated proteasome pathway."
reach
"Constitutive phosphorylation of beta-catenin by cyclin dependent kinase at serine 45 followed by phosphorylation of the N-terminus by GSK3beta targets beta-catenin for degradation by the ubiquitin and proteosome pathway, limiting levels of cytoplasmic beta-catenin under resting conditions."