NDUFA9: Proteins and Enzymes

ATP is generated via oxidative phosphorylation (Oxphos) in the mitochondria of almost all cells. The protein components of Oxphos, 4 respiratory chain complexes (I-IV) and an ATP synthase, are encoded in both the mitochondrial and nuclear genomes. Of the 4 respiratory chain complexes, complex I is the largest at 900 kD and contains at least 41 polypeptide subunits, 7 of which are encoded in the mitochondria, the remaining subunits are encoded in the nucleus. The multisubunit NADH:ubiquinone ...