| Assay Method Information | |
| | Biochemical Assay for Inhibitors of CK2α Kinase Activity |
| Description: | Final assay conditions comprised 0.2 nM CK2α, 50 μM peptide substrate (RRRADDSDDDDD), 15 μM ATP in 1× reaction buffer (40 mM Tris pH7.5, 200 mM NaCl, 20 mM MgCl2, 0.1 mg/mL BSA, 1% DMSO). The assay was conducted as follows: 1. Appropriate serial dilutions of test compound were prepared using Echo (Labcyte) and 50 nL of 100× compound in 100% DMSO transferred to the assay plate (white opaque OptiPlate-384, Perkin-Elmer). 2. Enzyme and peptide substrate were prepared in fresh reaction buffer and added to the assay plate in a total volume of 3 μl and incubated at RT for 15 minutes. 3. 2 μL of ATP solution freshly prepared in reaction buffer was added to start the reaction. 4. After 120 minutes, the reaction was stopped by addition of 5 pl ADP-Glo reagent (Promega V9102) and the plate incubated at RT for a further 60 minutes. 5. 10 μL of Kinase Detection reagent (Promega V9102) was added to assay plate and incubated for a further 30 minutes prior to reading luminescence on an Envision (Perkin-Elmer). |
| Affinity data for this assay | |
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