PMID:16200211 NDUFAF2 PMID:17344420 ECSIT NDUFAF1 PMID:16218961 NDUFAF1 PMID:15526035 AIF deficient cells exhibit a decrease content of complex I. It was proposed that AIF has a role in the biogenesis or maintenance of complex I PMID:20025615 comprehensive review about complex I