PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11202384-3 2000 There are 2 isoforms of cyclooxygenase: COX-1, which constitutively produces prostaglandins and COX-2, which is induced by inflammation. Prostaglandins 77-91 cytochrome c oxidase subunit I Equus caballus 40-45