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- _3 value "Phosphorylation of TIF1beta/Ser473 coincides with the induction of cell cycle gene cyclin A2 at the S-phase. Interestingly, chromatin immunoprecipitation demonstrated that the promoter of cyclin A2 gene is occupied by TIF1beta and that such occupancy is inversely correlated with Ser473 phosphorylation. Additionally, when HP1beta was co-expressed with TIF1beta/S473A, but not TIF1beta/S473E, the colocalization of TIF1beta/S473A and HP1beta to the promoters of Cdc2 and Cdc25A was enhanced. Non-phosphorylated TIF1beta/Ser473 allowed greater TIF1beta association with the regulatory regions and the consequent repression of these genes." provenance.
- _3 wasQuotedFrom 18590578 provenance.