Assay Method Information

Assay Name:  Inhibition Assay
Description:  Various concentrations of the substances to be tested are dissolved in dimethyl sulphoxide and mixed with an aqueous refludan solution (10 μg/ml). In clear 96-well plates having a flat bottom, 30 μl of citrate plasma (Octapharma) are mixed with 10 μl of the substance dilution. Then, either 20 μl of a solution of a rattlesnake toxin (Russel viper venom (RVV); RVV reagent: Pentapharm 121-06, final concentration 0.6 mU) in an aqueous calcium chloride solution buffer (final concentration of calcium chloride 0.05 M) or 20 μl of the aqueous calcium chloride solution (final concentration of calcium chloride 0.05 M) without RVV reagent (as reference for an unstimulated sample) are added. After addition of 20 μl of ChromozymX substrate (final concentration 1.6 mmol/l, Bachem L-1565, diluted in water) the samples are measured in a SpectraFluor Reader using a measurement filter of 405 nm each minute over a period of 20 minutes.
Affinity data for this assay

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