Assay Method Information

Assay Name:  In Vitro COX Assay
Description:  COX activity was measured using a commercial kit (COX Inhibitor Screening Assay Kit Cayman Chemical N. 560131) which includes both ovine COX-1 and human recombinant COX-2 enzymes. Inhibitors were pre-incubated with either ovine COX-1 or human COX-2 in order to screen isozyme-specific inhibition. Differently than described in the kit protocol, the reaction was carried out in the presence of 5 μM arachidonic acid while for the blank sample (no activity) the two enzymes were inactivated for 40 minutes at 100° C. It was then measured the amount of PGF2α produced by reduction with SnCl2 of COX-derived PGH2, via enzyme immunoassay (EIA) using a PG-specific antibody and competing with a PG-acetylcholinesterase conjugate.Absorbance was measured at 412 nm with a Tecan Infinite M200 plate reader and data were processed according to manufacturer's instructions.
Affinity data for this assay
 

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