| Assay Method Information | |
| | Inhibitory Activity Assay |
| Description: | The inhibitory activity of the test compounds against human ATR kinase was evaluated by measuring IC50 value.ATR/ATRIP (h) was incubated in detection buffer containing 50 nM GST-cMyc-p53 and Mg/ATP (10 μM). The reaction was initiated by adding Mg/ATP mixture. After incubation at room temperature for 30 minutes, the reaction was terminated by adding a termination solution containing EDTA. Finally, a detection buffer containing d2-labeled anti-GST monoclonal antibody and europium-labeled anti-phospho-Ser15 antibody against phosphorylated p53 were added. Plates were then read in time-resolved fluorescence mode for homogeneous time resolution.The fluorescence (HTRF) signal was determined according to the formula HTRF=10000×(Em665 nm/Em620 nm). |
| Affinity data for this assay | |
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