| Assay Method Information | |
| | Enteropeptidase Inhibition Assay |
| Description: | The inhibitory activity of the enteropeptidase inhibitor synthesized using the purified Recombinant Human Enteropeptidase and the substrate Acetyl-Asp-Asp-Asp-Asp-Lys-AFC (BioVision) was measured. 7.2 ng/mL of Enteropeptidase diluted with a buffer (20 mM Tris, 50 mM NaCl, pH 7.5) in a 96 well plate (Costar), 30 μM of Acetyl-Asp-Asp-Asp-Asp-Lys-AFC, several concentrations of Enteropeptidase inhibitors (1% DMSO concentration) were dispensed such that a final volume was 100 μL, and then the enzyme reaction was carried out at 30° C. for 1 hour. At this time, 1% DMSO, a substrate and Enteropeptidase instead of the compound were dispensed onto positive control wells, and 1% DMSO and a substrate were dispensed onto negative control wells. The enzyme reaction was started using an excitation wavelength of 380 nm and an emission wavelength of 500 nm in a fluorescence spectrometer, and then the rate of increase in fluorescence (milli-units per min) between 20 and 60 minutes was measured. |
| Affinity data for this assay | |
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