PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6191918-4 1983 The two P-448 forms had similar spectral properties, substrate specificity, sensitivity to inhibitors and regioselectivity in the metabolism of benzo(a)pyrene and testosterone. Benzo(a)pyrene 144-158 cytochrome P450, family 1, subfamily a, polypeptide 2 Rattus norvegicus 8-13