PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 33656879-5 2021 For CYP17A1 with 17OH-PROG, a characteristic shift of the Fe-O mode is observed in the presence of Mn-b5, indicating reorientation of a hydrogen bond between the 17OH group of the substrate from the terminal to the proximal oxygen atom of the Fe-O-O moiety, a configuration favorable for the lyase catalysis. prog 22-26 cytochrome P450 family 17 subfamily A member 1 Homo sapiens 4-11 32681807-1 2020 Human cytochrome P450 CYP17A1 first catalyzes hydroxylation at the C17 position of either PREG or PROG, and a subsequent C 17 -C 20 bond scission to produce dehydroepiandrosterone ( DHEA) or androstenedione (AD). prog 98-102 cytochrome P450 family 17 subfamily A member 1 Homo sapiens 22-29