Evidence map›Paper›PMID 26089391›Full record

ArticleNucleic acids research2015

The poor homology stringency in the heteroduplex allows strand exchange to incorporate desirable mismatches without sacrificing recognition in vivo.

Claudia Danilowicz, Darren Yang, Craig Kelley, Chantal Prévost, Mara Prentiss

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

24 citing papers in PubMed, 37 citations in OpenAlex.

  1. Two D-loop resolution systems enable natural genetic transformation in bacteria.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Mechanisms That Govern Recombinase Fidelity Control During Eukaryotic Homologous Recombination.BioEssays : news and reviews in molecular, cellular and developmental biology · 2026
    Review
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  19. DNA Repair: The Search for Homology.BioEssays : news and reviews in molecular, cellular and developmental biology · 2018
    Review
  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

5 authors at 2 institutions in 2 countries.

Claudia DanilowiczDepartment of Physics, Harvard University, Cambridge, MA 02138, USA.
Darren YangSchool of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.
Craig KelleyDepartment of Physics, Harvard University, Cambridge, MA 02138, USA.
Chantal PrévostLaboratoire de Biochimie Théorique, CNRS UPR 9080, Univ. Paris Diderot, Sorbonne Paris Cité, IBPC, Paris, France.
Mara PrentissDepartment of Physics, Harvard University, Cambridge, MA 02138, USA prentiss@fas.harvard.edu.
Harvard University · USSorbonne Paris Cité · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

RecA family proteins are responsible for homology search and strand exchange. In bacteria, homology search begins after RecA binds an initiating single-stranded DNA (ssDNA) in the primary DNA-binding site, forming the presynaptic filament. Once the filament is formed, it interrogates double-stranded DNA (dsDNA). During the interrogation, bases in the dsDNA attempt to form Watson-Crick bonds with the corresponding bases in the initiating strand. Mismatch dependent instability in the base pairing in the heteroduplex strand exchange product could provide stringent recognition; however, we present experimental and theoretical results suggesting that the heteroduplex stability is insensitive to mismatches. We also present data suggesting that an initial homology test of 8 contiguous bases rejects most interactions containing more than 1/8 mismatches without forming a detectable 20 bp product. We propose that, in vivo, the sparsity of accidental sequence matches allows an initial 8 bp test to rapidly reject almost all non-homologous sequences. We speculate that once the initial test is passed, the mismatch insensitive binding in the heteroduplex allows short mismatched regions to be incorporated in otherwise homologous strand exchange products even though sequences with less homology are eventually rejected.

Indexed as

Base Pair MismatchDNA, B-FormDNA, Single-StrandedFluorescence Resonance Energy TransferKineticsMolecular Dynamics SimulationNucleic Acid HeteroduplexesProtein BindingRec A RecombinasesSequence Homology, Nucleic AcidDNA, B-FormDNA, Single-StrandedNucleic Acid HeteroduplexesRec A Recombinases

Identifiers

PMID26089391
PMCPMC4513875
OpenAlexW2162336654

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.