PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10882719-11 2000 A possible use of 20(S)-hydroxycholesterol as a marker substrate for CYP7A is proposed. 20-hydroxycholesterol 18-42 cytochrome P450 family 7 subfamily A member 1 Homo sapiens 69-73