| Assay Method Information | |
| | CDK Assay |
| Description: | The test compound was dissolved in dimethyl sulfoxide and the solution was diluted to each concentration gradient with a buffer (50 mM HEPES, 10 mM MgCl2, 1 mM EGTA, 2 mM DTT and 0.01% Tween20) according to the test needs, the concentration of dimethyl sulfoxide was 4%. The buffer was then used to dilute ATP and the substrate ULight-4E-BP1 to prepare the mixture of 800 μM ATP and 200 nM substrate for further use. 2.5 μL of mixture of substrate and ATP or 2.5 μL of substrate was added to the wells, and then 2.5 μL of compound or 4% buffer of dimethyl sulfoxide was added, finally 5 μL of enzyme (final concentration was 0.66 μg/mL) was added, incubated avoiding light at room temperature for 60 minutes. 5 μL of EDTA stop buffer (final concentration was 6 nM) diluted with 1×detectionbuffer (LANCEDetectionBuffer, 10×, PerkinElmer, CR97-100) was added to each well, and then 5 μL of antibody (final concentration was 2 nM) diluted with 1×detectionbuffer was added, incubated avoiding light at room temperature for 60 minutes. Perkin Elmer EnVision TRFRETmode (Excitation wavelength: 320 nm, emission wavelength: 615 nm and 665 nm) was used to measure plates. |
| Affinity data for this assay | |
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