Evidence map›Paper›PMID 25559557›Full record

ArticleDNA repair2015

Biochemical characterization of RecA variants that contribute to extreme resistance to ionizing radiation.

Joseph R Piechura, Tzu-Ling Tseng, Hsin-Fang Hsu, Rose T Byrne, Tricia A Windgassen, Sindhu Chitteni-Pattu, John R Battista, Hung-Wen Li, Michael M Cox

Open access · greenAbstract read
In one paragraph

Article in DNA repair, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

17 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
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  4. Review
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  6. Article
  7. Article
  8. Rad51 facilitates filament assembly of meiosis-specific Dmc1 recombinase.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  9. Article
  10. Review
  11. Swi5-Sfr1 stimulates Rad51 recombinase filament assembly by modulating Rad51 dissociation.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  12. Article
  13. 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

9 authors at 3 institutions in 2 countries.

Joseph R PiechuraDepartment of Biochemistry, University of Wisconsin-Madison, Madison, WI 53706-1544, United States.
Tzu-Ling TsengDepartment of Chemistry, National Taiwan University, Taipei, Taiwan.
Hsin-Fang HsuDepartment of Chemistry, National Taiwan University, Taipei, Taiwan.
Rose T ByrneDepartment of Biochemistry, University of Wisconsin-Madison, Madison, WI 53706-1544, United States.
Tricia A WindgassenDepartment of Biomolecular Chemistry, University of Wisconsin-Madison, Madison, WI 53706, United States.
Sindhu Chitteni-PattuDepartment of Biochemistry, University of Wisconsin-Madison, Madison, WI 53706-1544, United States.
John R BattistaDepartment of Biological Sciences, Louisiana State University and A & M College, Baton Rouge, LA 70803, United States.
Hung-Wen LiDepartment of Chemistry, National Taiwan University, Taipei, Taiwan.
Michael M CoxDepartment of Biochemistry, University of Wisconsin-Madison, Madison, WI 53706-1544, United States. Electronic address: cox@biochem.wisc.edu.
University of Wisconsin–Madison · USNational Taiwan University · TWLouisiana State University · US

Funding

THE BIOCHEMISTRY OF GENETIC RECOMBINATION/RECA PROTEINR01GM032335 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI COX, MICHAEL M. · 1985 to 2014
$6.8M
Mechanisms and applications of recombinational DNA repairU01GM032335 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI COX, MICHAEL M. · 2015 to 2018
$1.7M
NIGMS NIH HHS GM32335NIGMS NIH HHS R01 GM032335NIGMS NIH HHS U01 GM032335
6 · The paper itself

Abstract

Among strains of Escherichia coli that have evolved to survive extreme exposure to ionizing radiation, mutations in the recA gene are prominent and contribute substantially to the acquired phenotype. Changes at amino acid residue 276, D276A and D276N, occur repeatedly and in separate evolved populations. RecA D276A and RecA D276N exhibit unique adaptations to an environment that can require the repair of hundreds of double strand breaks. These two RecA protein variants (a) exhibit a faster rate of filament nucleation on DNA, as well as a slower extension under at least some conditions, leading potentially to a distribution of the protein among a higher number of shorter filaments, (b) promote DNA strand exchange more efficiently in the context of a shorter filament, and (c) are markedly less inhibited by ADP. These adaptations potentially allow RecA protein to address larger numbers of double strand DNA breaks in an environment where ADP concentrations are higher due to a compromised cellular metabolism.

Indexed as

MutationAdenosine DiphosphateAdenosine TriphosphateDNA, BacterialDNA-Binding ProteinsDNA, Single-StrandedEscherichia coliEscherichia coli ProteinsRadiation, IonizingRadiation ToleranceRec A RecombinasesRecombinational DNA RepairAdenosine DiphosphateAdenosine TriphosphateDNA, BacterialDNA-Binding ProteinsDNA, Single-StrandedEscherichia coli ProteinsRec A RecombinasesDNA repairDouble strand break repairEvolutionRadiation resistanceRecA protein

Identifiers

PMID25559557
PMCPMC4308431
OpenAlexW2015860583

What OpenQuestion holds

Textmetadata
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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.