Assay Method Information

Assay Name:  Kat6b Activity Assay
Description:  Kat6b was incubated for 30 mins at 22° C. in the presence of different concentrations of test substances (0 μM, and within the range 0.01-20 μM) in assay buffer [25 mM Tris/HCl pH 8, 1 mM EGTA, 2.5 mM Glutathion, 0.02% Chicken Albumin, 0.05% Pluronic F127, 25 mM NaCl, 500 nM H4 peptide and 600 nM Acetyl Coenzym A].The reaction was stopped by addition of Detection Solution (25 mM HEPES pH 7.5, 0.1% BSA, 22 nM SAXL665 (Cisbio #610SAXLE), 100 μM Anacardic Acid (Enzo #ALX-270-381), 1 nM Anti-Histone H4 (ACETYL K8) Antibody (ABCAM #AB15823), 0.5 nM Anti-Rabbit IgG Eu (Perkin Elmer #AD0083).The fluorescence emission at 620 nm and 665 nm after excitation at 330-350 nm was measured in a TR-FRET measuring instrument, for instance a Rubystar or a Pherastar (both from BMG Lab Technologies, Offenburg, Germany) or a Viewlux (Perkin-Elmer). The ratio of the emission at 665 nm and at 622 nm was used as indicator of the amount of acetylated peptide.
Affinity data for this assay
 

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