| Assay Method Information | |
| | Axl Kinase Assay |
| Description: | Certain compounds of formula (I) were tested for their potency in inhibiting Axl kinase. Inhibition of Axl kinase activity by a test compound was calculated by AlphaScreen (PerkinElmer 6760620M). Standard assay conditions included 1 ng of recombinant Axl kinase (SignalChem) with 3-10 ng Poly-(GT)-Biotin (Cisbio) in the assay buffer, i.e., 40 μM ATP (Sigma), 10 mM MOPs, pH7.0 (Sigma M-1254), 0.21 mM EDTA (Sigma E-6758), 0.5% glycerol (J. T Baker 2136-1), 1 mg/ml BSA (Bio-Rad 500-0007), 0.01% 2-mercaptoethanol (BDH 441433A), and 0.001% Brij35 (Sigma P1254) in a final volume of 25 μL. Reactions were incubated at 30° C. for 30 minutes and stopped by adding 5 μL of 50 mM EDTA. Product analysis was performed using the AlphaScreen kit and counted with Enspire Alpha (PerkinElmer). Screen values of inhibitors were determined after carrying out assays with eight serially diluted concentrations in duplication. Results were analyzed using linear regression software (GraphPad Prism 4; GraphPad Software Inc.). |
| Affinity data for this assay | |
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