PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 23424399-2 2013 The unique Co(II) ion is coordinated in a slightly distorted octa-hedral coordination geometry by two O atoms from a chelating 4-(carb-oxy-phen-oxy)phthalate ligand, three water O atoms and a further O atom from a bridging carboxyl-ate group of a symmetry-related 4-(carb-oxy-phen-oxy)phthalate ligand. water o 172-179 mitochondrially encoded cytochrome c oxidase II Homo sapiens 11-17