Figure 4

Analysis of OXPHOS (super)complexes. Protein complexes were extracted from cells by digitonin treatment and 20 µg of total proteins from each sample were separated by BN-PAGE and electroblotted onto a PVDF membrane. Antibodies specific for NDUFB8, SDHA, UQCRC2, MT-CO1 and ATP5F1B were used for detection of the complex CI, CII, CIII, CIV and CV, respectively. Signals of CII and CV were considered as loading controls.