PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 913328-0 1977 Catechol estrogen-forming enzyme of brain: demonstration of a cytochrome p450 monooxygenase. catechol 0-8 cytochrome P450 family 20 subfamily A member 1 Homo sapiens 62-91