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Assay Method Information

Assay Name:  Tyrosine Kinase Assay
Description:  The assays were performed in V-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 (100 mM HEPES pH 7.4, 10 mM MgCl2, 25 mM Beta-Glycerolphosphate, 0.015% Brij35 and 4 mM DTT). The reaction was initiated by the combination of JAK2 with substrates and test compounds. The reaction was incubated at room temperature for 60 min. and terminated by adding 45 ul of 35 mM EDTA to each sample. The reaction mixture was analyzed on the Caliper LABCHIP 3000 by electrophoretic separation of the fluorescent substrate and phosphorylated product. Inhibition data were calculated by comparison to no enzyme control reactions for 100% inhibition and vehicle-only reactions for 0% inhibition. The final concentration of reagents in the assays is ATP, 30 uM; JAK2 fluorescent peptide, 1.5 uM; JAK2, 1 nM; and DMSO, 1.6%.
Affinity data for this assay
 

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Last update November 1, 2007
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