Assay Method Information

Assay Name:  Inhibitory Activity Assay
Description:  Factor IX is a key component of the plasma system that forms a fibrin clot at a site of vascular injury. The activity of Factor IXa is measured by monitoring the cleavage of the fluorescent peptide, CH3SO2-D-CHG-Gly-Arg-AFC.AcOH ( CHG is cyclohexyl-glycine and AFC is trifluoro aminomethyl coumarin). Factor IXa cleaves the amide bond between Arg and AFC, thereby releasing the AFC fluorophore. The free AFC can be detected with a fluorescence detector at an excitation wavelength of 405 nM and emission wavelength of 510 nM.
Affinity data for this assay
 

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