PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22798714-1 2012 We previously reported that the all-cis isomer of arachidonic acid, the most naturally occurring isoform of this fatty acid, reduced cuprous copper ion-induced conversion of xanthine dehydrogenase into its reactive oxygen species generating form, xanthine oxidase. Fatty Acids 113-123 xanthine dehydrogenase Rattus norvegicus 174-196