| Assay Method Information | |
| | Fluorescence Quench Assay |
| Description: | The assay was performed in the presence of OptiMEM (supernatant collected over 24 h and cleared from cellular debris by centrifugation) containing the ectodomain of BACE1, 25 μl water containing the desired 2-fold concentration of test compound and 2% DMSO, 1 μM substrate peptide, 20 mM NaOAc, pH 4.4, and 0.04% Triton-X100 in a total assay volume of 50 μl in a 384 well plate. In general, 25 μl of compound dilution were added to the plate followed by the addition of 10 μl of BACE1 containing OptiMEM diluted 1:10 in water with 0.2% Triton X-100. The reaction was started with the addition of 15 μl substrate in NaOAc buffer. The reaction was incubated at rt (dark) in an Envision multilabel reader (Perkin Elmer) and the cleavage of the substrate was recorded as kinetic for 60 min at ex: 485 nm, em: 538 nm. Blank wells containing no enzyme were included on each plate. |
| Affinity data for this assay | |
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