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Ribonucleotide reductases: essential enzymes for bacterial life
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Ribonucleotide reductase (RNR) is a key enzyme that mediates the synthesis of deoxyribonucleotides, the DNA precursors, for DNA synthesis in every living cell. This enzyme converts ribonucleotides to deoxyribonucleotides, the building blocks for DNA replication, and repair. Clearly, RNR enzymes have contributed to the appearance of genetic material that exists today, being essential for the evolution of all organisms on Earth. The strict control of RNR activity and dNTP pool sizes is important, as pool imbalances increase mutation rates, replication anomalies, and genome instability. Thus, RNR activity should be finely regulated allosterically and at the transcriptional level. In this review we examine the distribution, the evolution, and the genetic regulation of bacterial RNRs. Moreover, this enzyme can be considered an ideal target for anti-proliferative compounds designed to inhibit cell replication in eukaryotic cells (cancer cells), parasites, viruses, and bacteria.
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TORRENTS SERRA, Eduard. Ribonucleotide reductases: essential enzymes for bacterial life. Frontiers in Cellular and Infection Microbiology. 2014. Vol. 4, núm. 52. ISSN 2235-2988. [consulta: 7 de maig de 2026]. Disponible a: https://hdl.handle.net/2445/176563