SEARCH Articles Figures Tables Reduction of ribonucleoside triphosphates Ribonucleoside Ribonucleoside Triphosphate Reductase from L. leichmannii Ribonucleoside Triphosphate Reductase from Pithomyces chartarum Ribonucleoside triphosphate Ribonucleoside triphosphate reductase Ribonucleosides