| Assay Method Information | |
| | Enzymatic Assay |
| Description: | IRAK1 is a human purified recombinant enzyme (His-TEV-IRAK1 (194-712)). In this assay, IRAK-1 hydrolyses ATP and autophosphorylates. Measurement of IRAK-1 inhibition was performed in streptavidin coated 384well FlashPlate (PerkinElmer #SMP410A).His-TEV-IRAK-1 (15 ng/well), ATP (1 μM, [33P]ATP 0.25 μCi/well) and compounds in DMSO (range of concentrations from 20 M to 1 nM) or controls (2% DMSO) were incubated for 3 hours at 30° C. in assay buffer: Hepes pH7.0 50 mM, Fatty acid-free BSA 0.1%, Dithiothreitol DTT 2 mM, MgCl2 10 mM, EGTA 0.5 mM, Triton-X-100 0.01%. Kinase reaction was stopped by addition of EDTA. Supernatant was discarded, plates were washed three times with 150 mM NaCl and radioactivity was then measured in a Microbeta Trilux reader. |
| Affinity data for this assay | |
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