Evidence map›Paper›PMID 41264243›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2025

Genome integrity relies on rapid recycling of DNA Pol III in bacteria.

José Pablo Rascón Pérez, Ophélie d'Udekem d'Acoz, Nicolas Soubry, Wencheng Xu, Baljyot Singh Parmar, Stephanie C Weber, Rodrigo Reyes-Lamothe

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Review
  2. Review
  3. Genome integrity relies on rapid recycling of DNA Pol III in bacteria.Proceedings of the National Academy of Sciences of the United States of America · 2025
    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

7 authors.

José Pablo Rascón Pérez *Biology Department, McGill University, Montreal, QC H3G 0B1, Canada.
Ophélie d'Udekem d'Acoz *Biology Department, McGill University, Montreal, QC H3G 0B1, Canada.ORCID 0009-0008-7368-725X
Nicolas SoubryBiology Department, McGill University, Montreal, QC H3G 0B1, Canada.
Wencheng XuBiology Department, McGill University, Montreal, QC H3G 0B1, Canada.ORCID 0000-0003-4714-0150
Baljyot Singh ParmarBiology Department, McGill University, Montreal, QC H3G 0B1, Canada.ORCID 0000-0001-5416-7365
Stephanie C WeberBiology Department, McGill University, Montreal, QC H3G 0B1, Canada.ORCID 0000-0002-7297-2875
Rodrigo Reyes-LamotheBiology Department, McGill University, Montreal, QC H3G 0B1, Canada.ORCID 0000-0002-5330-3481

Funding

Canada Research Chairs (CRC) NACanadian Institutes of Health Research (CIHR) PJT-162247Canadian Institutes of Health Research (CIHR) PJT-178397FRQ | Nature et technologies (FRQNT) NANatural Sciences and Engineering Research Council of Canada (NSERC) RGPIN-2017-04435Natural Sciences and Engineering Research Council of Canada (NSERC) RGPIN-2019-05701
6 · The paper itself

Abstract

DNA replication requires precise coordination between DNA unwinding and DNA synthesis. In all domains of life, protein-protein interactions at the replisome maintain proximity between the enzymes that catalyze these two activities. Surprisingly, in bacteria, the replicative DNA polymerase (Pol III), responsible for DNA synthesis, is exchanged every few seconds. How processive synthesis is maintained under these conditions has remained unclear. Here, we use single-molecule microscopy in live cells to show that Pol III rapidly rebinds the replisome within seconds of dissociation. This fast recruitment is driven by an interaction with single-stranded DNA-binding protein (SSB), which enhances Pol III target search efficiency by ~20-fold. Disrupting this mechanism alters replisome stoichiometry, causes single-stranded DNA (ssDNA) accumulation, depletes free SSB, and leads to helicase disassembly and DNA breakage, culminating in genome instability. Our findings reveal a mechanism by which fast polymerase recycling sustains continuous DNA replication and genome integrity.

Indexed as

DNA-Binding ProteinsDNA Polymerase IIIDNA ReplicationEscherichia coliEscherichia coli ProteinsGenome, BacterialDNA, BacterialDNA BreaksDNA HelicasesDNA, Single-StrandedGenomic InstabilityIntravital MicroscopyReplisomesSingle Molecule ImagingDNA, BacterialDNA-Binding ProteinsDNA HelicasesDNA Polymerase IIIDNA, Single-StrandedEscherichia coli ProteinsReplisomesbacteriaDNA replicationgenome integritysingle-molecule microscopysingle-stranded DNA

Identifiers

PMID41264243
PMCPMC12663971

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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.