| Assay Method Information | |
| | Biochemical Assay |
| Description: | The enzyme and peptide solution was incubated with compound for 15 minutes at room temp before the reaction was initiated by the addition of ATP. The standard 5l reaction mixture contained 500 μM ATP, 2 μM peptide (STK1 Peptide), 0.75 nM of IRAK4 in reaction buffer (50 mM HEPES, pH 7.0, 0.02% NaN3, 0.01% BSA, 0.1 mM Orthovanadate, 5 mM MgCl2, 0.025% NP-40, 1 mM DTT). After 120 min of incubation at room temperature, 5 μl of Stop and Detect Solution (1:100 Cryptate labeled anti-phosphorylated peptide antibody solution and 125 nM Tracer in a 50 mM HEPES pH 7.0 detection buffer containing sufficient EDTA) was added. The plate was then further incubated for 60 minutes at room temperature and read on Envision 2103 Multilabeled reader (PerkinElmer) with excitation/emission/FRET emission at 340 nm/615 nm/665 nm, respectively. Fluorescence intensities at 615 nm and 665 nm emission wavelengths were expressed as a ratio (665 nm/615 nm). |
| Affinity data for this assay | |
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