title: Structural models for the heme a3/copper active site of cytochrome c oxidase.
mesh_terms: D001665:Binding Sites; D003300:Copper; D003576:Electron Transport Complex IV; D006418:Heme; D008345:Manganese; D008958:Models, Molecular; D010084:Oxidation-Reduction; D011487:Protein Conformation; D014961:X-Ray Diffraction
chemical_list: D006418:Heme; D008345:Manganese; D003300:Copper; D003576:Electron Transport Complex IV