Evidence map›Paper›PMID 17373858›Full record

ArticlePLoS biology2007

Protein oxidation implicated as the primary determinant of bacterial radioresistance.

Michael J Daly, Elena K Gaidamakova, Vera Y Matrosova, Alexander Vasilenko, Min Zhai, Richard D Leapman, Barry Lai, Bruce Ravel, Shu-Mei W Li, Kenneth M Kemner and 1 more

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 197 papers.

0numbers the graph read from it
0cells of the map it votes in
197citing papers in PubMed
17.7field-weighted citation impact, top 1% 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

197 citing papers in PubMed, 428 citations in OpenAlex.

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  13. mBio · 2025
    Article
  14. Article
  15. The ternary complex of MnProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  16. Article
  17. Article
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137 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 4 institutions in 1 country.

Michael J DalyDepartment of Pathology, Uniformed Services University of the Health Sciences, Bethesda, Maryland, United States of America. mdaly@usuhs.mil
Elena K Gaidamakova
Vera Y Matrosova
Alexander Vasilenko
Min Zhai
Richard D Leapman
Barry Lai
Bruce Ravel
Shu-Mei W Li
Kenneth M Kemner
James K Fredrickson
Uniformed Services University of the Health Sciences · USArgonne National Laboratory · USPacific Northwest National Laboratory · USNational Institute of Biomedical Imaging and Bioengineering · US

Funding

Energy-Filtered Electron TomographyZIAEB000037 · NIBIB · NATIONAL INSTITUTE OF BIOMEDICAL IMAGING AND BIOENGINEERING · PI LEAPMAN, RICHARD · 2009 to 2022
$4.2M
Energy-Filtered Electron TomographyZ01EB000037 · NIBIB · NATIONAL INSTITUTE OF BIOMEDICAL IMAGING AND BIOENGINEERING · PI LEAPMAN, RICHARD · 2007 to 2008
$119k
Intramural NIH HHS
6 · The paper itself

Abstract

In the hierarchy of cellular targets damaged by ionizing radiation (IR), classical models of radiation toxicity place DNA at the top. Yet, many prokaryotes are killed by doses of IR that cause little DNA damage. Here we have probed the nature of Mn-facilitated IR resistance in Deinococcus radiodurans, which together with other extremely IR-resistant bacteria have high intracellular Mn/Fe concentration ratios compared to IR-sensitive bacteria. For in vitro and in vivo irradiation, we demonstrate a mechanistic link between Mn(II) ions and protection of proteins from oxidative modifications that introduce carbonyl groups. Conditions that inhibited Mn accumulation or Mn redox cycling rendered D. radiodurans radiation sensitive and highly susceptible to protein oxidation. X-ray fluorescence microprobe analysis showed that Mn is globally distributed in D. radiodurans, but Fe is sequestered in a region between dividing cells. For a group of phylogenetically diverse IR-resistant and IR-sensitive wild-type bacteria, our findings support the idea that the degree of resistance is determined by the level of oxidative protein damage caused during irradiation. We present the case that protein, rather than DNA, is the principal target of the biological action of IR in sensitive bacteria, and extreme resistance in Mn-accumulating bacteria is based on protein protection.

Indexed as

Radiation ToleranceBacterial ProteinsDeinococcusFluorescenceIronManganeseOxidation-ReductionBacterial ProteinsIronManganese

Identifiers

PMID17373858
PMCPMC1828145
OpenAlexW1976452625

What OpenQuestion holds

Textmetadata
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.