The enzyme<unk>  or<unk> mplex IV (PDB: 2OCC​, EC 1.9.3.1) is a large transmembrane protein<unk> mplex found in bacteria and the mitochondrion.
Cytochrome c oxidase
Ubiquinol oxidase
NADH dehydrogenase
ATP synthase
Cytochrome b559
Pyruvate dehydrogenase complex
Succinate dehydrogenase
Oxoglutarate dehydrogenase