For over a decade, the Fluor de Lys® deacetylase assay platform has revolutionized assay of HDAC & Sirtuin enzyme activity, freeing researchers from cumbersome protocols required with radiolabeled or other modified histone-based methods. Our high-quality assays utilize patented substrate/developer chemistry in combination with high-activity, high-purity enzymes, to deliver more high-quality hits. Broad-class HDAC/Sirtuin screening assays are available in chemiluminescent, fluorescent, and colorimetric formats.