Evidence map›Paper›PMID 22187435›Full record

ArticleThe Journal of biological chemistry2012

The breast cancer susceptibility gene BRCA2 is required for the maintenance of telomere homeostasis.

Jaewon Min, Eun Shik Choi, Kwangwoo Hwang, Jimi Kim, Srihari Sampath, Ashok R Venkitaraman, Hyunsook Lee

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

28 citing papers in PubMed, 45 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Targeting theFrontiers in cell and developmental biology · 2023
    Review
  5. Article
  6. Article
  7. Article
  8. Genes · 2021
    Article
  9. Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. The Novel Pathogenic Mutation c.849dupT inJournal of breast cancer · 2018
    Article
  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

7 authors at 4 institutions in 3 countries.

Jaewon MinDepartment of Biological Sciences and the Institute of Molecular Biology and Genetics, Seoul National University, 599 Gwanak-Ro, Gwanak-Gu, Seoul 151-742, Korea.
Eun Shik Choi
Kwangwoo Hwang
Jimi Kim
Srihari Sampath
Ashok R Venkitaraman
Hyunsook Lee
National University · SDSeoul National University · KRHutchison/MRC Research Centre · GBUniversity of Cambridge · GB

Funding

Medical Research Council G0600332Medical Research Council G0700651Medical Research Council G1001521Medical Research Council MC_U105359877
6 · The paper itself

Abstract

Inactivating mutations in the breast cancer susceptibility gene BRCA2 cause gross chromosomal rearrangements. Chromosome structural instability in the absence of BRCA2 is thought to result from defective homology-directed DNA repair. Here, we show that BRCA2 links the fidelity of telomere maintenance with genetic integrity. Absence of BRCA2 resulted in signs of dysfunctional telomeres, such as telomere shortening, erosions, and end fusions in proliferating mouse fibroblasts. BRCA2 localized to the telomeres in S phase in an ATR-dependent manner, and its absence resulted in the accumulation of common fragile sites, particularly at the G-rich lagging strand, and increased the telomere sister chromatid exchange in unchallenged cells. The incidence of common fragile sites and telomere sister chromatid exchange increased markedly after treatment with replication inhibitors. Congruently, telomere-induced foci were frequently observed in the absence of Brca2, denoting activation of the DNA damage response and abnormal chromosome end joining. These telomere end fusions constituted a significant portion of chromosome aberrations in Brca2-deficient cells. Our results suggest that BRCA2 is required for telomere homeostasis and may be particularly important for the replication of G-rich telomeric lagging strands.

Indexed as

AnimalsBRCA2 ProteinCells, CulturedChromosome AberrationsDNA DamageFibroblastsHomeostasisHumansMiceMice, KnockoutSister Chromatid ExchangeS PhaseTelomereBRCA2 ProteinBRCA2 protein, humanBRCA2 protein, mouse

Identifiers

PMID22187435
PMCPMC3281639
OpenAlexW2074422164

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.