Evidence map›Paper›PMID 29939310›Full record

ArticleMolecular biology and evolution2018

Specificity of the DNA Mismatch Repair System (MMR) and Mutagenesis Bias in Bacteria.

Hongan Long, Samuel F Miller, Emily Williams, Michael Lynch

Abstract read
In one paragraph

Article in Molecular biology and evolution, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
–field-weighted citation impact
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

29 citing papers in PubMed.

  1. The unique role ofmBio · 2026
    Article
  2. Evolutionary bioenergetics of sporulation.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
  4. Article
  5. Evolutionary dynamics of nascent multicellular lineages.Proceedings. Biological sciences · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Mutation bias and adaptation in bacteria.Microbiology (Reading, England) · 2023
    Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
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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

4 authors.

Hongan LongInstitute of Evolution & Marine Biodiversity, KLMME, Ocean University of China, Qingdao, Shandong, China.
Samuel F MillerCenter for Mechanisms of Evolution, The Biodesign Institute, Arizona State University, Tempe, AZ.
Emily WilliamsCenter for Mechanisms of Evolution, The Biodesign Institute, Arizona State University, Tempe, AZ.
Michael LynchCenter for Mechanisms of Evolution, The Biodesign Institute, Arizona State University, Tempe, AZ.

Funding

Causes and Population-genetic Consequences of Molecular VariationR35GM122566 · NIGMS · TRUSTEES OF INDIANA UNIVERSITY · PI Michael R LYNCH · 2017 to 2026
$7.7M
The Rate and Molecular Spectrum of Spontaneous MutationsR01GM036827 · NIGMS · UNIVERSITY OF OREGON · PI LYNCH, MICHAEL R · 1988 to 2016
$5.7M
NIGMS NIH HHS R01 GM036827NIGMS NIH HHS R35 GM122566
6 · The paper itself

Abstract

The mutation rate of an organism is influenced by the interaction of evolutionary forces such as natural selection and genetic drift. However, the mutation spectrum (i.e., the frequency distribution of different types of mutations) can be heavily influenced by DNA repair. Using mutation-accumulation lines of the extremophile bacterium Deinococcus radiodurans ΔmutS1 and the model soil bacterium Pseudomonas fluorescens wild-type and MMR- (Methyl-dependent Mismatch Repair-deficient) strains, we report the mutational features of these two important bacteria. We find that P. fluorescens has one of the highest MMR repair efficiencies among tested bacteria. We also discover that MMR of D. radiodurans preferentially repairs deletions, contrary to all other bacteria examined. We then, for the first time, quantify genome-wide efficiency and specificity of MMR in repairing different genomic regions and mutation types, by evaluating the P. fluorescens and D. radiodurans mutation data sets, along with previously reported ones of Bacillus subtilis subsp. subtilis, Escherichia coli, Vibrio cholerae, and V. fischeri. MMR in all six bacteria shares two general features: 1) repair efficiency is influenced by the neighboring base composition for both transitions and transversions, not limited to transversions as previously reported; and 2) MMR only recognizes indels <4 bp in length. This study demonstrates the power of mutation accumulation lines in quantifying DNA repair and mutagenesis patterns.

Indexed as

DNA Mismatch RepairMutagenesisMutation RateDeinococcusMutation AccumulationPseudomonas fluorescens

Identifiers

PMID29939310
PMCPMC6188547

What OpenQuestion holds

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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.