| Assay Method Information | |
| | AlphaScreen Assay |
| Description: | Assays were performed in white, flat-bottom, 384-well ProxiPlates (Perkin Elmer). The final assay volume was 10 μL prepared from additions of His-BIR2 (124-240/C202A/C213G), Biotinylated SMAC peptide, and test compounds in assay buffer consisting of 25 mM Hepes, 100 mM NaCl, 0.1% BSA, and 5 mM CaCl2. The reaction was incubated at room temperature for 60 minutes. After 60 minutes, 2.5 μL of AlphaScreen detection reagent (Perkin Elmer) was added to the reaction mixture and incubated at room temperature in the dark for 120 minutes. The AlphaScreen signal generated by the reaction was detected on the Envision Plate Reader. Inhibition data were calculated from an AlphaScreen signal generated by the no protein control reactions for 100% inhibition and vehicle-only reactions for 0% inhibition. The final concentration of reagents in the assay was 50 nM His-BIR2 (124-240/C202A/C213G), 50 nM Biotinylated SMAC peptide, 4 μg/mL AlphaScreen detection reagents, and 0.5% DMSO. |
| Affinity data for this assay | |
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