PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 30068899-2 2018 Xanthine oxidoreductase (XOR) is an enzyme that catalyzes the formation of uric acid from hypoxanthine and xanthine, leading to an increase in superoxide and reactive oxygen species. Superoxides 143-153 xanthine dehydrogenase Homo sapiens 0-23 30068899-2 2018 Xanthine oxidoreductase (XOR) is an enzyme that catalyzes the formation of uric acid from hypoxanthine and xanthine, leading to an increase in superoxide and reactive oxygen species. Superoxides 143-153 xanthine dehydrogenase Homo sapiens 25-28