PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 14871981-2 2004 Cyclooxygenase (COX) catalyzes the synthesis of PGH2, which is converted, in turn, by microsomal prostaglandin E synthase (mPGES-1) to PGE2. Prostaglandin H2 48-52 prostaglandin E synthase Mus musculus 123-130