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Convergent allostery in ribonucleotide reductase [PDF]

open access: yesNature Communications, 2019
Ribonucleotide reductase (RNR) catalyzes the conversion of ribonucleotides to deoxyribonucleotides, which is an essential step in DNA synthesis. Here the authors use small-angle X-ray scattering, X-ray crystallography, and cryo-electron microscopy to ...
William C. Thomas   +7 more
doaj   +4 more sources

Inhibitors of the Cancer Target Ribonucleotide Reductase, Past and Present [PDF]

open access: yesBiomolecules, 2022
Ribonucleotide reductase (RR) is an essential multi-subunit enzyme found in all living organisms; it catalyzes the rate-limiting step in dNTP synthesis, namely, the conversion of ribonucleoside diphosphates to deoxyribonucleoside diphosphates.
Sarah E. Huff   +2 more
doaj   +3 more sources

Ribonucleotide Reductase [PDF]

open access: yesAllosteric Enzymes, 2020
Ribonucleotide Reductase is a heterodimeric cytoplasmic enzyme essential in dividing cells that reduces ribonucleotides to deoxyribonucleotide precursors for DNA synthesis in S phase. It consists of two subunits, M1 Chain and M2 Chain. Complex allosteric
Staffan Eriksson, Britt-Marie Sjöberg
semanticscholar   +3 more sources

TAS1553, a small molecule subunit interaction inhibitor of ribonucleotide reductase, exhibits antitumor activity by causing DNA replication stress [PDF]

open access: goldCommunications Biology, 2022
A small-molecule protein-protein interaction inhibitor of ribonucleotide reductase subunit, TAS1553, is shown to inhibit growth of both hematological and solid cancer xenograft tumors following oral administration in mice.
Hiroyuki Ueno   +17 more
doaj   +2 more sources

The identification of viral ribonucleotide reductase encoded by ORF23 and ORF141 genes and effect on CyHV-2 replication [PDF]

open access: yesFrontiers in Microbiology, 2023
IntroductionRibonucleotide reductase (RR) is essential for the replication of the double-stranded DNA virus CyHV-2 due to its ability to catalyze the conversion of ribonucleotides to deoxyribonucleotides, and is a potential target for the development of ...
Wenjie Cheng   +24 more
doaj   +2 more sources

Ribonucleotide reductase subunit switching in hepatoblastoma drug response and relapse [PDF]

open access: yesCommunications Biology, 2023
In hepatoblastoma, the RRM2 subunit of ribonucleotide reductase is associated with disease progression, but in response to chemotherapy, subunit switching favours the less active RRM2B subunit which supports hepatoblastoma cell survival and relapse.
Anthony Brown   +14 more
doaj   +2 more sources

Acetylation regulates ribonucleotide reductase activity and cancer cell growth

open access: yesNature Communications, 2019
Ribonucleotide reductase (RNR) catalyzes the de novo synthesis of deoxyribonucleoside diphosphates to provide dNTP precursors for DNA synthesis. Here the authors show that the availability of dNTPs, DNA replication, and cellular proliferation, are ...
Guo Chen   +12 more
doaj   +2 more sources

Sorafenib Inhibits Ribonucleotide Reductase Regulatory Subunit M2 (RRM2) in Hepatocellular Carcinoma Cells

open access: yesBiomolecules, 2020
The main curative treatments for hepatocellular carcinoma (HCC) are surgical resection and liver transplantation, which only benefits 15% to 25% of patients. In addition, HCC is highly refractory and resistant to cytotoxic chemotherapy.
Pei-Ming Yang   +2 more
doaj   +2 more sources

A phase II trial of sequential ribonucleotide reductase inhibition in aggressive myeloproliferative neoplasms

open access: yesHaematologica, 2014
Myeloproliferative neoplasms are a varied group of disorders that can have prolonged chronic phases, but eventually accelerate and can transform into a secondary acute myeloid leukemia that is ultimately fatal.
Joshua F. Zeidner   +11 more
doaj   +2 more sources

Characterization of a second class Ie ribonucleotide reductase [PDF]

open access: yesCommunications Biology
Class I ribonucleotide reductases (RNRs) convert ribonucleotides into deoxyribonucleotides under oxic conditions. The R2 subunit provides a radical required for catalysis conducted by the R1 subunit. In most R2s the radical is generated on a tyrosine via
Juliane John   +6 more
doaj   +2 more sources

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