CHEMBL3887659

AlphaScreen Assay: The compounds of the present invention can be evaluated by using an aggrecanase ADAMTS-4 and ADAMTS-5 AlphaScreen assay (Miller J. A., et al. Anal. Biochem. 2003, 314, 260-265), with the following modifications: Typically 3 or 4 nM ADAMTS-4 or 2.1 nM ADAMTS-5 is incubated with 80 nM 43-mer peptide substrate+/- inhibitors (1% final DMSO concentration) for 3 hours at room temperature in a white non-binding surface 96 well plate (Corning 3990). Inhibitors are serially diluted 3-fold and tested at final starting concentrations of up to approximately 100 uM. The assay is then quenched with a cocktail containing EDTA (62.5 mM), 50 mM Tris(hydroxymethyl)aminomethane (Tris), (pH 7.5), 10 mM calcium chloride, 100 mM sodium chloride, 0.2% Brij 35 (main component of polyoxyethylene (23) lauryl ether), 0.1% Bovine Serum Albumin (BSA), BC3 monoclonal antibody hybridoma supernatant (1:2000 final dilution), streptavidin conjugated donor beads and anti-mouse IgG conjugated acceptor beads.