Hydroxyurea—the good, the bad and the ugly

MW Musiałek, D Rybaczek - Genes, 2021 - mdpi.com
Hydroxyurea (HU) is mostly referred to as an inhibitor of ribonucleotide reductase (RNR)
and as the agent that is commonly used to arrest cells in the S-phase of the cycle by …

Ribonucleotide reductases: structure, chemistry, and metabolism suggest new therapeutic targets

BL Greene, G Kang, C Cui, M Bennati… - Annual review of …, 2020 - annualreviews.org
Ribonucleotide reductases (RNRs) catalyze the de novo conversion of nucleotides to
deoxynucleotides in all organisms, controlling their relative ratios and abundance. In doing …

Inhibitors of the cancer target ribonucleotide reductase, past and present

SE Huff, JM Winter, CG Dealwis - Biomolecules, 2022 - mdpi.com
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 …

Radicals in biology: your life is in their hands

JA Stubbe, DG Nocera - Journal of the American Chemical …, 2021 - ACS Publications
Radicals in biology, once thought to all be bad actors, are now known to play a central role
in many enzymatic reactions. Of the known radical-based enzymes, ribonucleotide …

Metabolic clogging of mannose triggers dNTP loss and genomic instability in human cancer cells

Y Harada, Y Mizote, T Suzuki, A Hirayama, S Ikeda… - Elife, 2023 - elifesciences.org
Mannose has anticancer activity that inhibits cell proliferation and enhances the efficacy of
chemotherapy. How mannose exerts its anticancer activity, however, remains poorly …

Cryo-EM structure of the EBV ribonucleotide reductase BORF2 and mechanism of APOBEC3B inhibition

NM Shaban, R Yan, K Shi, SN Moraes, AZ Cheng… - Science …, 2022 - science.org
Viruses use a plethora of mechanisms to evade immune responses. A recent example is
neutralization of the nuclear DNA cytosine deaminase APOBEC3B by the Epstein-Barr virus …

Effects of chameleon dispense-to-plunge speed on particle concentration, complex formation, and final resolution: A case study using the Neisseria gonorrhoeae …

TS Levitz, EJ Brignole, I Fong, MC Darrow… - Journal of structural …, 2022 - Elsevier
Ribonucleotide reductase (RNR) is an essential enzyme that converts ribonucleotides to
deoxyribonucleotides and is a promising antibiotic target, but few RNRs have been …

Ribonucleotide reductase, a novel drug target for gonorrhea

J Narasimhan, S Letinski, SP Jung, A Gerasyuto… - Elife, 2022 - elifesciences.org
Abstract Antibiotic-resistant Neisseria gonorrhoeae (Ng) are an emerging public health
threat due to increasing numbers of multidrug resistant (MDR) organisms. We identified two …

How ATP and dATP act as molecular switches to regulate enzymatic activity in the prototypical bacterial class Ia ribonucleotide reductase

MA Funk, CM Zimanyi, GA Andree, AE Hamilos… - Biochemistry, 2024 - ACS Publications
Class Ia ribonucleotide reductases (RNRs) are allosterically regulated by ATP and dATP to
maintain the appropriate deoxyribonucleotide levels inside the cell for DNA biosynthesis …

Nucleotide depletion promotes cell fate transitions by inducing DNA replication stress

BT Do, PP Hsu, SY Vermeulen, Z Wang, T Hirz… - Developmental Cell, 2024 - cell.com
Control of cellular identity requires coordination of developmental programs with
environmental factors such as nutrient availability, suggesting that perturbing metabolism …