PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 4366168-2 1974 The involvement of cytochrome b5 in the NADH-dependent hydroxylation of 3,4-benzpyrene by a reconstituted cytochrome P-448-containing system. NAD 40-44 cytochrome b5 type A Homo sapiens 19-32