PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1001810-7 1976 Both androstenedione and 16alpha-hydroxytestosterone cause type I spectral perturbations associated with binding to cytochrome P-450 when added to placental microsomes; however, the deltaA390-420 is twice as great in response to saturating amounts of androstenedione than in response to 16alpha-hydroxytestosterone. Androstenedione 5-20 cytochrome P450 family 4 subfamily F member 3 Homo sapiens 116-132