| Assay Method Information | |
| | ITK Inhibitor Binding Kinetics |
| Description: | This assay is based on the binding of a proprietary, Alexa Fluor 647-labeled, ATP-competitive kinase inhibitor (kinase tracer-236) to the ITK expression construct in the presence of a Europium-conjugated antibody, resulting in a FRET (fluorescence resonance energy transfer) signal. Displacement of the kinase tracer by compound results in a lower emission ratio upon excitation of the Europium chelate. Candidate compounds are designed as potential irreversible inhibitors of ITK, capable of ligating to an active site cysteine residue resulting in time dependent covalent binding. The time dependent nature of irreversible inhibition is investigated by performing the binding assay with and without a pre-incubation of compound and ITK. |
| Affinity data for this assay | |
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