Contains a total of 305 µg or 610 µg of antibodies and is a pre-mixed solution of 3 monoclonal antibodies against Complex II subunits 70 kDa Fp, 30 kDa Ip along with an antibody against Complex V alpha as a control. This cocktail can be used to verify isolated Complex II purity or to conveniently determine the levels of 2 of the 4 Complex II subunits in patient cell lines relative to the control protein (Complex V alpha).