| Assay Method Information | |
| | Biochemical Activity Assay |
| Description: | PRKACA assay at Km: In each well of a 384-well plate, 0.007 ng/ul (0.18 nM) of PRKACA enzyme (Millipore: 539482) was incubated in a total of 12.5 μl of buffer (100 mM HEPES pH 7.5, 0.015% Brij 35, 10 mM MgCl2, 1 mM DTT) with 1 μM Kemptide peptide substrate (5-FAM-LRRASLG) (Anaspec 29933) and 5 μM ATP at 25 C for 90 minutes in the presence or absence of a dosed concentration series of test compounds (1% DMSO final concentration). The reaction was stopped by the addition of 80 μl of Stop buffer (100 mM HEPES pH 7.5, 0.015% Brij 35, 35 mM EDTA and 0.2% of Coating Reagent 3 (Perkin Elmer)). The plate was then read on the EZ Reader 2 (protocol settings: −2.0 psi, upstream voltage −700, downstream voltage −2700, post sample sip 60 seconds). Data was normalized to 0% and 100% inhibition controls and the IC50 calculated using a 4-parameter fit using GraphPad Prism. |
| Affinity data for this assay | |
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