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Overview
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Background
EX 527 (SEN0014196) is a novel, potential, and specific small-molecule inhibitor of SIRT1 catalytic activity to examine the role of SIRT1 in p53 acetylation and cell survival after DNA damage. Significantly, inhibition of SIRT1 catalytic activity by EX 527 had no effect on cell growth, viability, or p53-controlled gene expression in cells treated with etoposide. EX-527 is found to be 200- to 500-fold more selective for SIRT1 than SIRT2 and SIRT3. EX-527 is a racemic mixture, and its optical isomers were separated by chiral high-performance liquid chromatography and designated EX-242 and EX-243.
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- Properties
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Overview