Evidence map›Paper›PMID 30544222›Full record

ArticleNucleic acids research2019

A role for 3' exonucleases at the final stages of chromosome duplication in Escherichia coli.

Sarah L Midgley-Smith, Juachi U Dimude, Christian J Rudolph

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.0field-weighted citation impact, top 23% 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

21 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. Review
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

3 authors at 1 institution in 1 country.

Sarah L Midgley-SmithDivision of Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK.
Juachi U DimudeDivision of Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK.
Christian J RudolphDivision of Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK.
Brunel University of London · GB

Funding

Biotechnology and Biological Sciences Research Council BB/K015729/1Biotechnology and Biological Sciences Research Council BB/N014995/1
6 · The paper itself

Abstract

Chromosome duplication initiates via the assembly of replication fork complexes at defined origins, from where they proceed in opposite directions until they fuse with a converging fork. Recent work highlights that the completion of DNA replication is highly complex in both pro- and eukaryotic cells. In this study we have investigated how 3' and 5' exonucleases contribute towards the successful termination of chromosome duplication in Escherichia coli. We show that the absence of 3' exonucleases can trigger levels of over-replication in the termination area robust enough to allow successful chromosome duplication in the absence of oriC firing. Over-replication is completely abolished if replication fork complexes are prevented from fusing by chromosome linearization. Our data strongly support the idea that 3' flaps are generated as replication fork complexes fuse. In the absence of 3' exonucleases, such as ExoI, these 3' flaps can be converted into 5' flaps, which are degraded by 5' exonucleases, such as ExoVII and RecJ. Our data support the idea that multiple protein activities are required to process fork fusion intermediates. They highlight the complexity of fork fusions and further support the idea that the termination area evolved to contain fork fusion-mediated pathologies.

Indexed as

Chromosome DuplicationChromosomes, BacterialDNA ReplicationEscherichia coliEscherichia coli ProteinsExodeoxyribonucleasesExonucleasesOrigin Recognition ComplexEscherichia coli ProteinsExodeoxyribonucleasesExonucleasesOriC chromosomal replication originOrigin Recognition ComplexRecJ protein, E coli

Identifiers

PMID30544222
PMCPMC6393302
OpenAlexW2904008336

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.