| Assay Method Information | |
| | Biochemical hGSK-3Beta Assay |
| Description: | Compounds were tested for their ability to inhibit human Glycogen Synthase Kinase-3 beta (hGSK-3β) to phosphorylate biotin-YRRAAVPPSPSLSRHSSPHQ(pS)EDEEE. Compounds were incubated with 0.5 μCi 33P-ATP, 10 μM ATP, 0.0125 U hGSK-3β (Upstate cell signaling solutions) and 1 μM substrate (biotin-YRRAAVPPSPSLSRHSSPHQ(pS)EDEEE) in 50 mM HEPES, 10 mM MgCl2, 100 mM Na3VO4, 1 mM DTT, 0.0075% Triton, 2% DMSO (total volume 50 μL) for 30 minutes at room temperature. The incubation was stopped by addition of an equal volume of 100 mM EDTA, 4M NaCl. 80 μL of this mixture was added to streptavidin-coated Flash-plates (PerkinElmer). Following a wash step, 33P incorporation was quantified on a MicroBeta microplate liquid scintillation counter (Perkin Elmer). IC50s were determined by fitting a sigmoidal dose-response curve to the counts obtained at the different concentrations in GraphPad Prism. |
| Affinity data for this assay | |
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