Assay Method Information

Assay Name:  Kinase Assay
Description:  The assay reactions were performed in U-bottom 384-well plates. The final assay volume was 30 ul prepared from 15 ul additions of enzyme and substrates (fluoresceinated peptide and ATP) and test compounds in assay buffer (20 mM HEPES pH 7.4, 10 mM MgCl2, 25 mM beta-glycerol phosphate, 0.015% Brij35 and 4 mM DTT). The reaction was initiated by the combination of GST-JAK1 enzyme with substrates and test compounds. The reactions were incubated at room temperature for 3 hours and terminated by adding 60 ul of 35 mM EDTA to each sample. Each reaction mixture was analyzed on the Caliper LabChip 3000 (Caliper, Hopkinton, Mass.) by electrophoretic separation of the fluorescent substrate and phosphorylated product. Inhibition data were calculated by comparison with no enzyme control reactions for 100% inhibition, and vehicle-only treated reactions for 0% inhibition. The final concentration of reagents in the assays was: ATP, 100 uM; fluoresceinated peptide, 1.5 uM.
Affinity data for this assay
 

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