| Assay Method Information | |
| | Inhibition Assay |
| Description: | Recombinant BACE-1 (extracellular domain, expressed in baculovirus and purified using standard methods) at 0.1 to 10 nM concentrations is incubated with the test compound at various concentrations for 1 hour at room temperature in 10 to 100 mM acetate buffer, pH 4.5, containing 0.1% CHAPS. Synthetic fluorescence-quenched peptide substrate, derived from the sequence of APP and containing a suitable fluorophore-quencher pair, is added to a final concentration of 1 to 5 μM, and the increase in fluorescence is recorded at a suitable excitation/emission wavelength in a microplate spectro-fluorimeter for 5 to 30 minutes in 1-minute intervals. IC50 values are calculated from percentage of inhibition of BACE-1 activity as a function of the test compound concentration. |
| Affinity data for this assay | |
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