Evidence map›Paper›PMID 35697743›Full record

ArticleNature communications2022

Dynamic interaction of BRCA2 with telomeric G-quadruplexes underlies telomere replication homeostasis.

Junyeop Lee, Keewon Sung, So Young Joo, Jun-Hyeon Jeong, Seong Keun Kim, Hyunsook Lee

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

15 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
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  11. Extrachromosomal telomere DNA derived from excessive strand displacements.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  12. Article
  13. Article
  14. Targeting theFrontiers in cell and developmental biology · 2023
    Review
  15. 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

6 authors at 1 institution in 2 countries.

Junyeop Lee *Department of Biological Sciences & IMBG, Seoul National University, Seoul, 08826, South Korea.ORCID 0000-0002-6367-9183
Keewon Sung *Department of Chemistry, Seoul National University, Seoul, 08826, South Korea.ORCID 0000-0002-2733-556X
So Young JooDepartment of Biological Sciences & IMBG, Seoul National University, Seoul, 08826, South Korea.ORCID 0000-0002-6739-6287
Jun-Hyeon JeongDepartment of Biological Sciences & IMBG, Seoul National University, Seoul, 08826, South Korea.
Seong Keun KimDepartment of Chemistry, Seoul National University, Seoul, 08826, South Korea. seongkim@snu.ac.kr.ORCID 0000-0001-9891-0931
Hyunsook LeeDepartment of Biological Sciences & IMBG, Seoul National University, Seoul, 08826, South Korea. HL212@snu.ac.kr.ORCID 0000-0002-2251-5019
Seoul National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BRCA2-deficient cells precipitate telomere shortening upon collapse of stalled replication forks. Here, we report that the dynamic interaction between BRCA2 and telomeric G-quadruplex (G4), the non-canonical four-stranded secondary structure, underlies telomere replication homeostasis. We find that the OB-folds of BRCA2 binds to telomeric G4, which can be an obstacle during replication. We further demonstrate that BRCA2 associates with G-triplex (G3)-derived intermediates, which are likely to form during direct interconversion between parallel and non-parallel G4. Intriguingly, BRCA2 binding to G3 intermediates promoted RAD51 recruitment to the telomere G4. Furthermore, MRE11 resected G4-telomere, which was inhibited by BRCA2. Pathogenic mutations at the OB-folds abrogated the binding with telomere G4, indicating that the way BRCA2 associates with telomere is innate to its tumor suppressor activity. Collectively, we propose that BRCA2 binding to telomeric G4 remodels it and allows RAD51-mediated restart of the G4-driven replication fork stalling, simultaneously preventing MRE11-mediated breakdown of telomere.

Indexed as

G-QuadruplexesDNA ReplicationHomeostasisTelomereTelomere Homeostasis

Identifiers

PMID35697743
PMCPMC9192595
OpenAlexW4282551879

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.