Brief Description

EX-527 is a potent and selective inhibitor of the SIRT1 class III histone deacetylase enzyme, thought to block the release of deacetylated peptide and O-acetyl-ADP-ribose from the enzyme following the deacetylation process. EX-527 has been used a powerful tool for studying the relationship between SIRT1 and cell regulation. The deacetylation of cortactin, a protein responsible for rearrangements of the actin cytoskeleton, is associated with cell motility and possibly tumorigenesis, and blocking of this deacetylation by EX 527 correlated to a decrease in cell motility. Blocking of SIRT1 by EX-527 also demonstrated that deacetylation of the important tumor suppressor protein p53 is mediated by SIRT1 as well. EX-527 inhibits other sirtuin family deacetylases only at much higher concentrations (IC50 = 19.6 and 48.7 μM for SIRT2 and SIRT3, respectively).

Solubility

Soluble in DMSO (10 mg/ml), ethanol (5 mg/ml), DMF (~20 mg/ml), and DMSO:PBS (1:1 pH 7.2) (~0.5 mg/ml).

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Density

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Storage conditions

Store at -20°C 2 years

Appearance: