PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9734472-2 1998 It has been proposed that metabolites of arachidonic acid (AA), formed by cytochrome P-450 monooxygenase (P450), are endothelium-derived hyperpolarizing factors (EDHFs). edhfs 162-167 cytochrome P450 family 2 subfamily B member 6 Homo sapiens 106-110