| Assay Method Information | |
| | Biological Activity Assay |
| Description: | WT EGFR and EGFR [L858R/T790M] kinase assay: WT EGFR or EGFR [L858R/T790M] kinase was mixed with different concentrations of pre-diluted compounds for 10 minutes in 5× Kinase Buffer A in duplicate. The corresponding substrate and ATP were added and reacted at room temperature for 20 minutes (in which a negative and a positive control were set: the negative control is blank and the positive control is AZD9291). After the reaction, the detection reagent (the reagent in the HTRF Kinase TK kit) was added, and after incubation at room temperature for 30 minutes, the enzyme activity in the presence of the compounds of the present disclosure at each concentration was measured by an Evnvision microplate reader, and the inhibition of the enzyme by the compound at each concentrations were calculated. The inhibitions of the enzyme activity by the compounds at different concentrations were then fitted using Graphpad 5.0 software according to the four-parameter equation, and the IC50 values were calculated. |
| Affinity data for this assay | |
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