Cdc4 Background Information Cell cycle progression is controlled at a point late in G1 designated Start. Passage through Start requires the activity of the cyclin-dependent protein kinase Cdc28. Transition from G1 to S phase requires the association of Cdc28 with members of the G1 cyclin family. This progression also requires the destruction of the S-phase cyclin/Cdk inhibitor, Sic1. Sic1 proteolysis is mediated in part by the ubiquitin-conjugating enzyme Cdc34. Cdc4, a potential ubiquitin-protein ligase, is also involved in the degradation of Sic1. Another protein thought to play a role in the ubiquitin-protein ligase complex is Cdc53. This protein binds to Cdc34 and targets phosphorylated G1 cyclins for ubiquitin-mediated degradation.
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Cdc4 (yC-20)
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Cdc4 (yC-20): sc-6715. Western blot analysis of Cdc4 expression in S. cerevisiae whole cell lysate.
