Evidence map›Paper›PMID 31757945›Full record

ArticleNature communications2019

MutL sliding clamps coordinate exonuclease-independent Escherichia coli mismatch repair.

Jiaquan Liu, Ryanggeun Lee, Brooke M Britton, James A London, Keunsang Yang, Jeungphill Hanne, Jong-Bong Lee, Richard Fishel

Abstract read
In one paragraph

Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. The mismatch repair factor Mlh1-Pms1 uses ATP to compact and remodel DNA.bioRxiv : the preprint server for biology · 2025
    Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. The methylation-independent mismatch repair machinery inMicrobiology (Reading, England) · 2021
    Review
  16. Review
  17. Review
  18. Review
  19. 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

8 authors.

Jiaquan LiuDepartment of Cancer Biology and Genetics, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA.
Ryanggeun LeeDepartment of Physics, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 37673, Korea.
Brooke M BrittonDepartment of Cancer Biology and Genetics, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA.ORCID http://orcid.org/0000-0003-1606-0991
James A LondonDepartment of Cancer Biology and Genetics, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA.
Keunsang YangSchool of Interdisciplinary Bioscience and Bioengineering, POSTECH, Pohang, Gyeongbuk, 37673, Korea.
Jeungphill HanneDepartment of Cancer Biology and Genetics, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA.
Jong-Bong LeeDepartment of Physics, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 37673, Korea. jblee@postech.ac.kr.
Richard FishelDepartment of Cancer Biology and Genetics, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA. rfishel@osu.edu.

Funding

The Human Mismatch Repair Proteins and CarcinogenesisR01CA067007 · NCI · UNIVERSITY OF VERMONT &ST AGRIC COLLEGE · PI Richard Fishel · 1995 to 2026
$9.6M
Mismatch Repair in Gamma-ProteobacteriaR01GM129764 · NIGMS · OHIO STATE UNIVERSITY · PI FISHEL, RICHARD · 2019 to 2022
$1.3M
NCI NIH HHS R01 CA067007NIGMS NIH HHS R01 GM129764
6 · The paper itself

Abstract

A shared paradigm of mismatch repair (MMR) across biology depicts extensive exonuclease-driven strand-specific excision that begins at a distant single-stranded DNA (ssDNA) break and proceeds back past the mismatched nucleotides. Historical reconstitution studies concluded that Escherichia coli (Ec) MMR employed EcMutS, EcMutL, EcMutH, EcUvrD, EcSSB and one of four ssDNA exonucleases to accomplish excision. Recent single-molecule images demonstrated that EcMutS and EcMutL formed cascading sliding clamps on a mismatched DNA that together assisted EcMutH in introducing ssDNA breaks at distant newly replicated GATC sites. Here we visualize the complete strand-specific excision process and find that long-lived EcMutL sliding clamps capture EcUvrD helicase near the ssDNA break, significantly increasing its unwinding processivity. EcSSB modulates the EcMutL-EcUvrD unwinding dynamics, which is rarely accompanied by extensive ssDNA exonuclease digestion. Together these observations are consistent with an exonuclease-independent MMR strand excision mechanism that relies on EcMutL-EcUvrD helicase-driven displacement of ssDNA segments between adjacent EcMutH-GATC incisions.

Indexed as

DNA Breaks, Single-StrandedDNA-Binding ProteinsDNA HelicasesDNA Mismatch RepairDNA RepairDNA Repair EnzymesEndodeoxyribonucleasesEscherichia coliEscherichia coli ProteinsMicroscopy, FluorescenceMutL ProteinsSingle Molecule ImagingDNA-Binding ProteinsDNA HelicasesDNA Repair EnzymesEndodeoxyribonucleasesEscherichia coli Proteinsmethyl-directed mismatch repair protein, E coliMutL protein, E coliMutL ProteinsSSB protein, E coliUvrD protein, E coli

Identifiers

PMID31757945
PMCPMC6876574

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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.