ArticleJournal of bacteriology2017
Role of Ribonucleotide Reductase in Bacillus subtilis Stress-Associated Mutagenesis.
Article in Journal of bacteriology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 15 citations in OpenAlex.
- Genomic and pan-genomic analyses of Bacillus subtilis B13 provide insights into biosynthetic potential and genetic traits associated with environmental adaptation.Antonie van Leeuwenhoek · 2026Article
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- The secondary metabolite hydrogen cyanide protectsFrontiers in microbiology · 2023Article
- Stress-Associated and Growth-Dependent Mutagenesis Are Divergently Regulated by c-di-AMP Levels inInternational journal of molecular sciences · 2022Article
- Mfd Affects Global Transcription and the Physiology of StressedFrontiers in microbiology · 2021Article
- Article
- Role of Mfd and GreA in Bacillus subtilis Base Excision Repair-Dependent Stationary-Phase Mutagenesis.Journal of bacteriology · 2020Article
- Convergent allostery in ribonucleotide reductase.Nature communications · 2019Article
- LC-MS/MS proteomic analysis of starved Bacillus subtilis cells overexpressing ribonucleotide reductase (nrdEF): implications in stress-associated mutagenesis.Current genetics · 2018Article
- Stationary-phase Mutagenesis Soft-agar Overlay Assays inBio-protocol · 2017Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
Abstract
The Gram-positive microorganism Bacillus subtilis relies on a single class Ib ribonucleotide reductase (RNR) to generate 2'-deoxyribonucleotides (dNDPs) for DNA replication and repair. In this work, we investigated the influence of RNR levels on B. subtilis stationary-phase-associated mutagenesis (SPM). Since RNR is essential in this bacterium, we engineered a conditional mutant of strain B. subtilis YB955 (hisC952 metB5 leu427) in which expression of the nrdEF operon was modulated by isopropyl-β-d-thiogalactopyranoside (IPTG). Moreover, genetic inactivation of ytcG, predicted to encode a repressor (NrdR) of nrdEF in this strain, dramatically increased the expression levels of a transcriptional nrdE-lacZ fusion. The frequencies of mutations conferring amino acid prototrophy in three genes were measured in cultures under conditions that repressed or induced RNR-encoding genes. The results revealed that RNR was necessary for SPM and overexpression of nrdEF promoted growth-dependent mutagenesis and SPM. We also found that nrdEF expression was induced by H IMPORTANCE: Results presented in this study support the concept that the adverse metabolic conditions prevailing in nutritionally stressed bacteria activate an oxidative stress response that disturbs ribonucleotide reductase (RNR) levels. Such an alteration of RNR levels promotes mutagenic events that allow Bacillus subtilis to escape from growth-limited conditions.
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