Assay Method Information

Assay Name:  Fluorescent Polarization Binding (FP Binding) assay
Description:  Assay was performed in polystyrene low volume 384-well black plate, at Room Temperature (RT) in a final volume of 10.1 μl/well using 10 nM of GST-hRIPK1 (8-327) enzyme and 5 nM of fluorescent labeled ligand (14-(2-{[3-({2-{[4-(cyanomethyl)phenyl]amino}-6-[(5-cyclopropyl-1H-pyrazol-3-yl)amino]-4-pyrimidinyl}amino) propyl]amino}-2-oxoethyl)-16,16,18,18-tetramethyl-6,7,7a,8a,9,10,16,18-octahydrobenzo[2″,3″]indolizino[8″,7″:5′,6]pyrano[3′,2′:3,4]pyrido[1,2-a]indol-5-ium-2-sulfonate.Test Compounds were serially diluted in DMSO at 100 fold final concentrations in the assay (1% DMSO final). In each well of a 384-well Plate were dispensed 0.1 μL of compound solution (or DMSO for controls) followed by 5 μL of GST-hRIPK1 (8-327) at twice the final concentrations in assay buffer (50 mM HEPES pH 7.5, 10 mM NaCl, 50 mM MgCl2, 0.02% CHAPS, 0.5 mM DTT and 0.01% Pluronic F127). For negative control the enzyme addition was replaced by assay buffer only.
Affinity data for this assay
 

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