title: Paracoccus denitrificans: a present-day bacterium resembling the hypothetical free-living ancestor of the mitochondrion.
mesh_terms: D005075:Biological Evolution; D003574:Cytochrome c Group / Q000032:analysis; D008566:Membranes / Q000201:enzymology; D008928:Mitochondria / Q000201:enzymology / Q000378:metabolism; D008954:Models, Biological; D010085:Oxidative Phosphorylation; D010231:Paracoccus denitrificans / Q000201:enzymology / Q000378:metabolism
chemical_list: D003574:Cytochrome c Group