| Assay Method Information | |
| | Kinase Inhibition Assay |
| Description: | EGFR: The working concentration of each component in 10 μl wild-type EGFR kinase reaction system was: 10 μM ATP, 0.8 ng/μl wild-type EGFR kinase (Invitrogen, PV3872), 2 μM Tyr04 substrate (Invitrogen, PV3193). After the compounds to be tested were added, the final concentration of DMSO was 2%. 10 mM drug stock solutions dissolved at room temperature were gradiently diluted with 4% DMSO in water to a final concentrations of 10-0.005 μM. To each well were added 2.5 μl of a solution of the test compounds and 5 μl of a mixture of wild-type EGFR kinase and Tyr04 substrate diluted by a reaction buffer, and then 2.5 μl of ATP was added to initiate the reaction. Reaction buffer instead of ATP were added to C1 wells, no drugs were added to C2 wells, and the phosphorylated substrates were added to C3 wells according to the instruction. After shaking on a shaker at 25° C. for 60 minutes in the dark, 5 μl of Development Reagent B (Invitrogen, diluted with TR-FRET dilution buffer) was added, and reacted on a shaking table at room temperature for 60 min. The plates were read in a VictorX5 fluorescent microplate reader (PerkinElmer) and the light absorbance at an excitation wavelength of 405 nm and emission wavelengths of 450 nm and 520 nm was measured (For example, C3520nm represents the reading of C3 well at 520 nm). |
| Affinity data for this assay | |
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