10010401  SIRT1 Direct Fluorescent Screening Assay Kit



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Sirtuins (SIRTs) represent a distinct class of trichostatin A-insensitive lysyl-deacetylases (class III HDACs). Human SIRT1 is the homolog of yeast Silent information regulator 2 (Sir2) and has been shown to regulate the activity of the p53 tumor suppressor and inhibit apoptosis. Small molecule activators of SIRT1, such as resveratrol, extend lifespan in yeast and C. elegans in a manner that resembles caloric restriction. However, this activation of SIRT1 is under much debate. It was determined that the in vitro activation of SIRT1 and Sir2 by resveratrol was a substrate-specific event (i.e., the binding of resveratrol to SIRT1 promoted a conformational change that better accommodated the attached coumarin group in the peptide substrate). Additional research needs to be done to further elucidate the mechanism behind SIRT1 activation, as well as, to establish its role in aging, cancer, and neurodegenerative disease. Cayman’s SIRT1 Direct Fluorescent Screening Assay Kit provides a convenient fluorescence-based method for screening SIRT1 inhibitors or activators. The procedure requires only two easy steps, both performed in the same microplate. In the first step, the substrate, which comprises the p53 sequence Arg-His-Lys-Lys(e-acetyl)-AMC, is incubated with human recombinant SIRT1 along with its cosubstrate NAD+. Deacetylation sensitizes the substrate such that treatment with the developer in the second step releases a fluorescent product. The fluorophore can be easily analyzed using an excitation wavelength of 350-360 nm and an emission wavelength of 450-465 nm.

Download Kit Booklet 429 Kb PDF
Download Material Safety Data Sheet (MSDS) 96 Kb PDF

Pricing Information

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96 wells €354.00
Pricing updated 2010-08-01.
Prices are subject to change without notice.