YZ51, a novel potent inhibitor of ribonucleotide reductase (RR), inhibits hepatitis B virus replication by targeting ribonucleotide reductase M2 protein.
Fludarabine triphosphate (F-ara-ATP), the cytotoxic metabolite of Fludarabine phosphate , inhibits ribonucleotide reductase and DNA polymerase and ultimately leads to cellular apoptosis.