heart tissue from wild-type (WT) and Uqcrh-/- mice were solubilised with digitonin and separated on native gradient gels. F BN-PAGE gel stained with Coomassie (left) and NADH:NTB reductase activity stain (right) showing molecular weight marker (BHM) and heart tissue samples from wild-type (WT) and Uqcrh-/- mice. G BN-PAGE and immunoblot using the antibody to CIII subunit UQCRC2 in heart tissue samples from wild-type (WT) and Uqcrh-/- mice. H Further complexome analysis of the BN-PAGE gels shown in F, shown here are average IBAQ values of subunits from complexes III, I and IV 