Assay Method Information

Assay Name:  BTK and BTK C481S Enzyme Assay
Description:  A 3-fold gradient concentration stock solution of 1000× compound was prepared using DMSO and diluted 100-fold to 10× compound stock solution using reaction buffer (50 mM HEPES, pH 7.5, 0.0015% Briji-35, 2 mM DTT, 10 mM MgCl2), and the 10× compound stock solution was transferred to a 384-well plate. Enzyme reactions were set up with BTK Kinase Enzyme System (Promega Catalog #V2941) or BTK (C481S) Kinase Enzyme System (Promega Catalog #VA7033). First, a 2× enzyme solution containing 10 nM BTK or 10 nM BTK C481S was prepared with reaction buffer and added to the plate, and incubated with the compound for 10 minutes. Then, a 2.5× substrate solution containing ATP (125 μM) and Poly(Glu4, Tyr1) (0.05 μg/μL) was prepared with reaction buffer and added to the plate, and reacted at 20° C. for 90 minutes. Finally, the kinase activity was detected according to the experimental steps provided by ADP-Glo™ kinase Assay Kit (Promega, #V9101), and finally the luminescence chemiluminescence value was read. DMSO was used as the maximum signal value, and adding no enzyme was used as the minimum signal value.
Affinity data for this assay
 

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