Initially shown to inhibit Sir2p (the yeast Sirt1 homolog) and create a conditional phenocopy of a sir2 deletion mutant in S. cerevisiae1. Cells grown in the presence of the drug have silencing defects at telomeres, silent mating-type loci and the ribosomal DNA1. Inhibits all class III HDACs (sirtuins) and alleviates gene silencing in Fragile X mental retardation syndrome2. Reverses ischemic preconditioning-induced cardioprotection in a mouse model3.
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