PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6802831-10 1982 In addition, the diazene-bound heme of cytochrome P-450 apparently was modified irreversibly in the presence of oxygen. diazene 17-24 cytochrome P450, family 2, subfamily g, polypeptide 1 Rattus norvegicus 39-55