PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8380331-12 1993 These structural changes at the Fea3-CuB binuclear site controlled by the redox levels of the metal centers may provide a functional role(s) for the cytochrome c oxidase-catalyzed reactions, such as the reduction of dioxygen to water and the vectorial proton pumping across the mitochondrial inner membrane. Oxygen 216-224 cytochrome c oxidase subunit 6A1, mitochondrial Bos taurus 149-169