PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2200526-2 1990 Since thioredoxin reductase and glutathione reductase function as alternative electron donors in the biosynthesis of deoxyribonucleotides, catalyzed by ribonucleotide reductase, the inhibition of these electron transfer systems by the nitrosoureas could determine the cytostatic property of this homologous series of drugs. Deoxyribonucleotides 117-137 glutathione-disulfide reductase Homo sapiens 32-53