PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12573809-6 2002 Finally, 17-OH pregnenolone is converted to DHEA by the 17,20 lyase activity of P450c17. Dehydroepiandrosterone 44-48 cytochrome P450 family 17 subfamily A member 1 Homo sapiens 80-87