| Assay Method Information | |
| | Enzyme Assay |
| Description: | The SAE enzymatic reaction totals 50 μl and contains 50 mM HEPES Hemisodium (pH 7.5), 0.05% BSA, 5 mM MgCl2, 0.5 μM ATP, 250 μM GSH, 0.01 μM Ubc9-GST, 0.125 μM Sumo-Flag and 0.11 nM recombinant human SAE enzyme. The enzymatic reaction mixture, with and without inhibitor, Is incubated at 24° C. for 105 min in a 384-well plate before termination with 25 μM of Stop/Detection buffer (0.1M HEPES Hemisodium pH 7.5, 0.05% Tween20, 20 mM EDTA, 410 mM KF, 0.53 nM Europium-Cryptate labeled monoclonal anti-Flag M2 Antibody (CisBio International) and 8.125 μg/ml PHYCOLINK goat anti-GST allophycocyanin (XL-APC) antibody (Prozyme)). After incubation for 2 hours at 24° C., quantification of FRET is performed on the Pherostar (BMG Labtech). Percentage inhibition values at a single concentration or enzyme inhibition (IC50) values are determined from those curves. One skilled in the art will appreciate that the values generated either as percentage inhibition at a single concentration or IC50 values are subject to experimental variation. |
| Affinity data for this assay | |
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