| Assay Method Information | |
| | ADP-Glo Kinase Assay |
| Description: | In order to measure RIPK1 activity the ADP-Glo kinase assay (Promega, Catalog #V7002) was used to measure the conversion of ATP to ADP. This enzymatic assay was performed in a 384-well white, Optiplate (Perkin Elmer, Catalog #6007299) with assay buffer consisting of 50 mM HEPES pH 7.5 (Gibco, Catalog #15630-080), 50 mM NaCl (Teknova, Catalog #S0252), 30 mM MgCl2 (Ambion, Catalog #AM9530G), 1 mM DTT (Santa Cruz Biotechnology, Catalog #sc-29089), 0.05% BSA (Sigma, Catalog #A3059-50G) and 0.02% CHAPS (Sigma, Catalog #C5070-5G). Stock solutions of the test compounds were prepared in 100% DMSO (Sigma, Catalog #D2650) and serially diluted 1:3 using 100% DMSO. Compounds were additionally diluted 1:40 in assay buffer, and 2 μL/well were transferred to the assay plate. 4 μL/well (final concentration of 5 nM) of RIPK1 protein (SignalChem, Catalog #R07-11G-05) diluted in assay buffer and added to the assay plate followed by a 10-minute preincubation at room temperature. 4 μL/well of ATP (Promega, Catalog #V7002) (final concentration of 50 μM) diluted in assay buffer were then added to the assay plate followed by a 6 hr reaction time. Final concentrations of RIPK1 and ATP refer to a 10 μL volume. Luminescence was measured using a BioTek Synergy NEO plate reader. IC50values were calculated using a four-parameter logistic curve fit using GeneData Screener software. |
| Affinity data for this assay | |
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