Evidence map›Paper›PMID 18833303›Full record

ArticlePLoS genetics2008

Mutability and importance of a hypermutable cell subpopulation that produces stress-induced mutants in Escherichia coli.

Caleb Gonzalez, Lilach Hadany, Rebecca G Ponder, Mellanie Price, P J Hastings, Susan M Rosenberg

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
3.8field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 56 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Review
  5. Review
  6. Real-time dynamics of mutagenesis reveal the chronology of DNA repair and damage tolerance responses in single cells.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Clustered and genome-wide transient mutagenesis in human cancers: Hypermutation without permanent mutators or loss of fitness.BioEssays : news and reviews in molecular, cellular and developmental biology · 2014
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Stress-Induced Mutagenesis.EcoSal Plus · 2012
    Article
  19. Stress-induced mutation via DNA breaks in Escherichia coli: a molecular mechanism with implications for evolution and medicine.BioEssays : news and reviews in molecular, cellular and developmental biology · 2012
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Caleb GonzalezDepartment of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America.
Lilach Hadany
Rebecca G Ponder
Mellanie Price
P J Hastings
Susan M Rosenberg
Baylor College of Medicine · USUniversity of Iowa · US

Funding

MOLECULAR MECHANISMS /STRESS-INDUCED MUTATION /E. COLIR01GM053158 · NIGMS · BAYLOR COLLEGE OF MEDICINE · PI ROSENBERG, SUSAN M · 1997 to 2014
$7.4M
Mechanisms of Adaptive AmplificationR01GM064022 · NIGMS · BAYLOR COLLEGE OF MEDICINE · PI HASTINGS, PHILIP JOHN · 2001 to 2010
$2.3M
NIGMS NIH HHS R01 GM053158NIGMS NIH HHS R01 GM064022NIGMS NIH HHS R01-GM53158NIGMS NIH HHS R01-GM64022
6 · The paper itself

Abstract

In bacterial, yeast, and human cells, stress-induced mutation mechanisms are induced in growth-limiting environments and produce non-adaptive and adaptive mutations. These mechanisms may accelerate evolution specifically when cells are maladapted to their environments, i.e., when they are are stressed. One mechanism of stress-induced mutagenesis in Escherichia coli occurs by error-prone DNA double-strand break (DSB) repair. This mechanism was linked previously to a differentiated subpopulation of cells with a transiently elevated mutation rate, a hypermutable cell subpopulation (HMS). The HMS could be important, producing essentially all stress-induced mutants. Alternatively, the HMS was proposed to produce only a minority of stress-induced mutants, i.e., it was proposed to be peripheral. We characterize three aspects of the HMS. First, using improved mutation-detection methods, we estimate the number of mutations per genome of HMS-derived cells and find that it is compatible with fitness after the HMS state. This implies that these mutants are not necessarily an evolutionary dead end, and could contribute to adaptive evolution. Second, we show that stress-induced Lac(+) mutants, with and without evidence of descent from the HMS, have similar Lac(+) mutation sequences. This provides evidence that HMS-descended and most stress-induced mutants form via a common mechanism. Third, mutation-stimulating DSBs introduced via I-SceI endonuclease in vivo do not promote Lac(+) mutation independently of the HMS. This and the previous finding support the hypothesis that the HMS underlies most stress-induced mutants, not just a minority of them, i.e., it is important. We consider a model in which HMS differentiation is controlled by stress responses. Differentiation of an HMS potentially limits the risks of mutagenesis in cell clones.

Indexed as

MutagenesisMutationDNA Breaks, Double-StrandedEscherichia coliEvolution, MolecularGenome, BacterialLac Operon

Identifiers

PMID18833303
PMCPMC2543114
OpenAlexW2052657449

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.