Figure 2. Example RGS protein/Gα FRET experimental setup.
A) Each reaction mixture consists of 150 µL 3X RGS protein solution, 150 µL 3X Gαi1, and compound or DMSO to the desired test concentration. The total reaction volume is 450 µL. B) The reaction mixtures, in both AMF and GDP buffers, are distributed in triplicate across a 96-well plate. The shading gradient represents varying concentrations of test compound.