title: Haem-haem interactions associated with ligand binding by cytochrome oxidase.
mesh_terms: D003576:Electron Transport Complex IV / Q000378:metabolism*; D006418:Heme / Q000378:metabolism*; D007501:Iron; D008956:Models, Chemical; D010084:Oxidation-Reduction; D011485:Protein Binding
chemical_list: D006418:Heme; D007501:Iron; D003576:Electron Transport Complex IV