Assay Method Information

Assay Name:  Kinase Inhibition Assay
Description:  Tec: The in vitro kinase assays were performed at Nanosyn utilizing micro-fluidic detection technology. The test compounds were serially pre-diluted in DMSO and added, by the acoustic dispensing (Labcyte 550), directly to 384well assay plates into 10 uL of a buffer with enzyme comprising: 100 mM HEPES, pH7.5, 5 mM MgCl2, 0.1% bovine serum albumin, 1 mM DTT, 0.01% Triton X-100 and the enzyme. Final DMSO concentration was maintained at 1% in all samples, including the controls. The reactions were initiated by addition of ATP (to the specified concentration) and the fluorescently labeled peptide substrate to a final concentration of 1 uM, and incubated for 3 hours at 25° C. Following incubation, the reactions were quenched by addition of 40 μL of termination buffer (100 mM HEPES, pH7.5, 0.01% Triton X-100, 50 mM EDTA). Terminated plates were analyzed using Caliper LabChip 3000 microfluidic electrophoresis instrument (Caliper Life Sciences/Perkin Elmer). The enzymatic modification of the peptide substrate (phosphorylation) results in a change of net charge enabling electrophoretic separation of product from substrate. As substrate and product are separated by electrophoresis, two peaks of fluorescence are observed.
Affinity data for this assay
 

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