| Assay Method Information | |
| | CDK2 Inhibition Assay |
| Description: | Test compounds (compound of the present invention, reference compound Abemaciclib, and comparative example compounds) were dissolved in DMSO at 10 mM. 45 μL of the test compound solution was transferred into a 384-well compound source plate (LABCYTE cat #P-05525) and serially diluted at 1:3 ratio to create a 12-point dilutions. The same volume of DMSO was adopted as high control. 20 nL of the test compound solution in DMSO were dispensed into a new 384-well assay plate by Echo 550. CDK2 protein (2.19 nM, CARNA BIOSCIENCE, cat #04-103), florescent labeled substrate FLPeptide18 (2 μM, PerkinElmer, cat #760362) was prepared in kinase assay buffer (100 mM HEPES (pH 7.5), 10 mM MgCl2, 0.05% Brij-35, 0.5 mM DTT and 0.1 mg/ml BSA). 15 μL of kinase assay buffer containing CDK2 protein and substrate was transferred to assay plate and incubate at RT for 30 minutes. Kinase assay buffer supplemented with substrate peptides was employed as low control to monitor the background. 400 M ATP was prepared in kinase assay buffer containing and 5 μL of ATP solution was added to each well to start the reaction. The assay plate was incubated at 25° C. for 90 minutes and the reaction was stopped by adding 40 μL of 0.5 M EDTA. |
| Affinity data for this assay | |
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