PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 40970-2 1979 In the presence of valinomycin, 2 K+ ions were taken up by the vesicles per electron transferred from cytochrome c to oxygen. Valinomycin 19-30 cytochrome c, somatic Homo sapiens 102-114