| Assay Method Information | |
| | CK2 Assay |
| Description: | Test compounds in aqueous solution were added at a volume of 10 microliters, to a reaction mixture comprising 10 microliters Assay Dilution Buffer (ADB; 20 mM MOPS, pH 7.2, 25 mM beta-glycerolphosphate, 5 mM EGTA, 1 mM sodium orthovanadate and 1 mM dithiothreitol), 10 microliters of substrate peptide (RRRDDDSDDD (SEQ ID NO:4), dissolved in ADB at a concentration of 1 mM), 10 microliters of recombinant human CK2 (25 ng dissolved in ADB; Upstate). Reactions were initiated by the addition of 10 microliters of ATP Solution (90% 75 mM MgCl2, 75 micromolar ATP dissolved in ADB; 10% [γ-33P]ATP (stock 1 mCi/100 μl; 3000 Ci/mmol (Perkin Elmer) and maintained for 10 minutes at 30 degrees C. The reactions were quenched with 100 microliters of 0.75% phosphoric acid, then transferred to and filtered through a phosphocellulose filter plate (Millipore). After washing each well 5 times with 0.75% phosphoric acid, the plate was dried under vacuum for 5 min and, following the addition of 15 ul of scintilation fluid to each well, the residual radioactivity was measured using a Wallac luminescence counter. |
| Affinity data for this assay | |
|---|---|
| If you find an error in this entry please send us an E-mail | |