Evidence map›Paper›PMID 12861005›Full record

ArticleMolecular and cellular biology2003

Competition between the Rad50 complex and the Ku heterodimer reveals a role for Exo1 in processing double-strand breaks but not telomeres.

Kazunori Tomita, Akira Matsuura, Thomas Caspari, Antony M Carr, Yufuko Akamatsu, Hiroshi Iwasaki, Ken-ichi Mizuno, Kunihiro Ohta, Masahiro Uritani, Takashi Ushimaru and 2 more

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In one paragraph

Article in Molecular and cellular biology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 98 papers.

0numbers the graph read from it
0cells of the map it votes in
98citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

98 citing papers in PubMed, 145 citations in OpenAlex.

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  6. DNA Repair in Haploid Context.International journal of molecular sciences · 2021
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  8. MonitoringBiology open · 2021
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  14. Mre11 complex links sister chromatids to promote repair of a collapsed replication fork.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  15. Article
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  17. Article
  18. Article
  19. Review
  20. Article

38 more citing papers are in PubMed but not listed here.

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

12 authors at 5 institutions in 2 countries.

Kazunori TomitaDepartment of Chemistry, Shizuoka University, 836 Oya, Shizuoka 422-8529, Japan.
Akira Matsuura
Thomas Caspari
Antony M Carr
Yufuko Akamatsu
Hiroshi Iwasaki
Ken-ichi Mizuno
Kunihiro Ohta
Masahiro Uritani
Takashi Ushimaru
Koichi Yoshinaga
Masaru Ueno
RIKEN · JPUniversity of Sussex · GBYokohama City University · JPNational Center for Geriatrics and Gerontology · JPShizuoka University · JP

Funding

Medical Research Council G0001129
6 · The paper itself

Abstract

The Mre11-Rad50-Nbs1(Xrs2) complex and the Ku70-Ku80 heterodimer are thought to compete with each other for binding to DNA ends. To investigate the mechanism underlying this competition, we analyzed both DNA damage sensitivity and telomere overhangs in Schizosaccharomyces pombe rad50-d, rad50-d pku70-d, rad50-d exo1-d, and pku70-d rad50-d exo1-d cells. We found that rad50 exo1 double mutants are more methyl methanesulfonate (MMS) sensitive than the respective single mutants. The MMS sensitivity of rad50-d cells was suppressed by concomitant deletion of pku70+. However, the MMS sensitivity of the rad50 exo1 double mutant was not suppressed by the deletion of pku70+. The G-rich overhang at telomere ends in taz1-d cells disappeared upon deletion of rad50+, but the overhang reappeared following concomitant deletion of pku70+. Our data suggest that the Rad50 complex can process DSB ends and telomere ends in the presence of the Ku heterodimer. However, the Ku heterodimer inhibits processing of DSB ends and telomere ends by alternative nucleases in the absence of the Rad50-Rad32 protein complex. While we have identified Exo1 as the alternative nuclease targeting DNA break sites, the identity of the nuclease acting on the telomere ends remains elusive.

Indexed as

DNA HelicasesAntigens, NuclearBinding, CompetitiveChromatinDimerizationDNADNA-Binding ProteinsDNA DamageDose-Response Relationship, RadiationExodeoxyribonucleasesFluorescent Antibody Technique, IndirectGamma RaysGene DeletionKu AutoantigenMethyl MethanesulfonateModels, GeneticAntigens, NuclearChromatinDNADNA-Binding ProteinsDNA Helicasesexodeoxyribonuclease IExodeoxyribonucleasesKu AutoantigenMethyl MethanesulfonateRAD50 protein, S cerevisiaeSaccharomyces cerevisiae ProteinsXRCC5 protein, humanXrcc6 protein, human

Identifiers

PMID12861005
PMCPMC165728
OpenAlexW2129308592

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.