Assay Method Information

Assay Name:  Fluorescence Polarization-Based Kinase Assay
Description:  Fluorescence polarization-based kinase assays were performed in 384 well-plate format using histidine tagged recombinant human full-length Bruton Agammaglobulinemia Tyrosine Kinase (Btk) and a modified protocol of the KinEASE FP Fluorescein Green Assay supplied from Millipore. Kinase reaction were performed at room temperature for 60 minutes in presence of 250 μM substrate, 10 μM ATP and variable test article concentrations. The reaction was stopped with EDTA/kinase detection reagents and the polarization measured on a Tecan 500 instrument. From the dose-response curve obtained, the IC50 was calculated using Graph Pad Prisms using a non linear fit curve.
Affinity data for this assay
 

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