PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1690030-4 1990 COS1 cells transfected with an expression plasmid containing the cytochrome P-450AROM cDNA had the capacity to aromatize testosterone, androstenedione and 16 alpha-hydroxyandrostenedione, suggesting that a single polypeptide catalyzes all steps of the aromatization reaction using either of the three major C19-substrates. Androstenedione 135-150 cytochrome P450 family 19 subfamily A member 1 Homo sapiens 65-85