SIRT7 activates p53 by enhancing PCAF-mediated MDM2 degradation to arrest the cell cycle

Abstract excerpt

Abstract Sirtuin 7 (SIRT7), an NAD + -dependent deacetylase, plays vital roles in energy sensing, but the underlying mechanisms of action remain less clear. Here, we report that SIRT7 is required for p53-dependent cell-cycle arrest during glucose deprivation. We show that SIRT7 directly interacts with p300/CBP-associated factor (PCAF) and the affinity for this interaction increases during glucose deprivation....

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