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Cited by 262

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

Deficiency of human BRCA2 leads to impaired homologous recombination but maintains normal nonhomologous end joining

Open access
Xia, Fen, Taghian, Danielle G., DeFrank, Jeffrey S., Zeng, Zhao-Chong, Willers, Henning, Iliakis, George, Powell, Simon N.·2001·Proceedings of the National Academy of Sciences

Abstract

Carriers of BRCA2 germline mutations are at high risk to develop early-onset breast cancer. The underlying mechanisms of how BRCA2 inactivation predisposes to malignant transformation have not been established. Here, we provide direct functional evidence that human BRCA2 promotes homologous recombination (HR), which comprises one major pathway of DNA double-strand break repair. We found that up-regulated HR after transfection of wild-type (wt) BRCA2 into a human tumor line with mutant BRCA2 was linked to increased radioresistance. In addition, BRCA2-mediated enhancement of HR depended on the interaction with Rad51. In contrast to the tumor suppressor BRCA1, which is involved in multiple DNA repair pathways, BRCA2 status had no impact on the other principal double-strand break repair pathway, nonhomologous end joining. Thus, there exists a specific regulation of HR by BRCA2, which may function to maintain genomic integrity and suppress tumor development in proliferating cells.

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Metadata

Authors
Xia, F., Taghian, D. G., DeFrank, J. S., Zeng, Z.-C., Willers, H., Iliakis, G., & Powell, S. N.
Venue
Proceedings of the National Academy of Sciences
Published
2001-07-10
Volume
98
Issue
15
Pages
8644-8649
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2115797273
Cited by
262
References
3
FWCI
6.41
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Deficiency of human BRCA2 leads to impaired homologous recombination but maintains normal nonhomologous end joining. https://app.cochat.ai/papers/10.1073/pnas.151253498
The paper
Xia, F., Taghian, D. G., DeFrank, J. S., Zeng, Z.-C., Willers, H., Iliakis, G., & Powell, S. N. (2001). Deficiency of human BRCA2 leads to impaired homologous recombination but maintains normal nonhomologous end joining. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.151253498

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