PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12587014-2 1997 Molybdenum is an essential element for the function of nitrogenase in plants and as a cofactor for enzymes including xanthine oxidoreductase, aldehyde oxidase, and sulfide oxidase in animals. Molybdenum 0-10 xanthine dehydrogenase Rattus norvegicus 117-140