Evidence map›Paper›PMID 20738173›Full record

ArticleRadiation research2010

Deficiency in Bre1 impairs homologous recombination repair and cell cycle checkpoint response to radiation damage in mammalian cells.

Sophia B Chernikova, Jennifer A Dorth, Olga V Razorenova, John C Game, J Martin Brown

Open access · greenAbstract read
In one paragraph

Article in Radiation research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

38 citing papers in PubMed, 58 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. ReducedCancers · 2021
    Article
  10. RPA-mediated recruitment of Bre1 couples histone H2B ubiquitination to DNA replication and repair.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  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 1 institution in 1 country.

Sophia B ChernikovaDepartment of Radiation Oncology, Stanford University School of Medicine, Stanford, California 94305-5152, USA.
Jennifer A Dorth
Olga V Razorenova
John C Game
J Martin Brown
Stanford University · US

Funding

TUMOR HYPOXIA--MOLECULAR STUDIES &CLINICAL EXPLOITATIONP01CA067166 · NCI · STANFORD UNIVERSITY · PI LE, QUYNH-THU XUAN · 1996 to 2017
$25.5M
Postdoctoral Training in the Radiation ScincesT32CA121940 · NCI · STANFORD UNIVERSITY · PI GRAVES, EDWARD E. · 2007 to 2018
$2.1M
Experimental Radiotherapy and Chemotherapy With a Potent New Hypoxic CytotoxinR01CA118202 · NCI · STANFORD UNIVERSITY · PI BROWN, JOHN MARTIN · 2006 to 2010
$1.4M
NCI NIH HHS CA-067166NCI NIH HHS CA-118202NCI NIH HHS P01 CA067166NCI NIH HHS R01 CA118202NCI NIH HHS T32 CA121940
6 · The paper itself

Abstract

The pathway involving Bre1-dependent monoubiquitination of histone H2B lysine 123, which leads to Dot1-dependent methylation of histone H3 lysine 79 (H3K79me2), has been implicated in survival after exposure to ionizing radiation in Saccharomyces cerevisiae. We found that depletion of mammalian homologs of Bre1 compromises the response to ionizing radiation, leading to increased radiosensitivity and a G(2)/M checkpoint defect. The deficiency in Bre1a/b function was also associated with increased sensitivity to crosslinking drugs and defective formation of Rad51 foci in mouse cells, suggesting a defect in homologous recombinational repair analogous to that seen in Saccharomyces. In budding yeast, H3K79me2 is important for the recruitment of the checkpoint signaling protein Rad9 to sites of double-strand breaks (DSBs). However, in mammalian cells, 53BP1 (the Rad9 ortholog) in addition to H3K79me2 recognizes a different residue, H4K20me2, and some studies argue that it is H4K20me2 and not H3K79me2 that is the preferred target for 53BP1. We show here that depletion of Bre1b specifically reduced dimethylation of H3K79 without affecting dimethylation of H4K20. Thus our data suggest that the observed defects in the radiation response of Bre1a/b-deficient cells are associated with reduced H3K79me2 and not with H4K20me2.

Indexed as

AnimalsBase SequenceCell CycleCell DivisionCell Line, TumorChlorambucilG2 PhaseGene Knockdown TechniquesHistonesHumansMethylationMiceRad51 RecombinaseRadiation ToleranceRecombination, GeneticRNA, Small InterferingChlorambucilHistonesRad51 RecombinaseRNA, Small InterferingRNF20 protein, humanRNF40 protein, humanUbiquitin-Protein Ligases

Identifiers

PMID20738173
PMCPMC2988074
OpenAlexW2035924891

What OpenQuestion holds

Textmetadata
LicenceTDM
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.