PMID-sentid Pub_year Sent_text compound_name comp_offset prot_official_name organism prot_offset 8217882-1 1993 Epitestosterone (17 alpha-hydroxy-4-androsten-3-one) inhibited competitively 17 alpha-hydroxylation of pregnenolone and subsequent C17,20-side chain cleavage of resulting 17 alpha-hydroxypregnenolone using microsomal preparations from the human testis. alpha-hydroxypregnenolone 174-199 cytokine like 1 Homo sapiens 131-134 8323292-3 1993 When intact E. coli cells were used for analysis, the truncated P450c17 showed the typical cytochrome P450 CO-difference spectrum and type I substrate binding spectra for pregnenolone, 17 alpha-hydroxypregnenolone, progesterone, and 17 alpha-hydroxyprogesterone. alpha-hydroxypregnenolone 188-213 cytochrome P450 family 17 subfamily A member 1 Homo sapiens 64-71