| Assay Method Information | |
| | Enzyme Inhibition Assay |
| Description: | GSK 3α: The enzyme inhibitory activities of compounds disclosed herein were determined by FRET using synthetic peptides labelled with both donor and acceptor fluorophores (Z-LYTE, Invitrogen Ltd., Paisley, UK). The inhibitory activities of test compounds against the GSK 3α enzyme isoform (Invitrogen), were evaluated by determining the level of activation/phosphorylation of the target peptide. The GSK3-α protein (500 ng/mL, 2.5 μL) was mixed with the test compound (2.5 μL at either 4 μg/mL, 0.4 μg/mL, 0.04 μg/mL, or 0.004 μg/mL) for 2 hr at RT. The FRET peptide (8 μM, 2.5 μL), which is a phosphorylation target for GSK3α, and ATP (40 μM, 2.5 μL) were then added to the enzyme/compound mixture and the resulting mixture incubated for 1 hr. Development reagent (protease, 5 μL) was added for 1 hr prior to detection in a fluorescence microplate reader (Varioskan Flash, ThermoFisher Scientific). |
| Affinity data for this assay | |
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