PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8015556-4 1994 By positioning the progesterone substrate into each model, we identified five residues that appeared crucial for determining whether progesterone would undergo 17 alpha-hydroxylation (by P450c17) or 21-hydroxylation (by P450c21). Progesterone 19-31 cytochrome P450 family 17 subfamily A member 1 Homo sapiens 187-194 8015556-4 1994 By positioning the progesterone substrate into each model, we identified five residues that appeared crucial for determining whether progesterone would undergo 17 alpha-hydroxylation (by P450c17) or 21-hydroxylation (by P450c21). Progesterone 133-145 cytochrome P450 family 17 subfamily A member 1 Homo sapiens 187-194