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High frequency of de novo mutations in Li–Fraumeni syndrome

Gonzalez, K D, Buzin, C H, Noltner, K A, Gu, D, Li, W, Malkin, D, Sommer, S S·2009·Journal of Medical Genetics

Abstract

Background: Li–Fraumeni syndrome is an autosomal dominant cancer predisposition syndrome caused by germline mutations in the TP53 gene. The frequency of germline de novo TP53 mutations is largely unknown; few unequivocal de novo mutations have been reported. Methods and results: Of 341 patients with early onset cancer sent for clinical testing to a national reference laboratory, 75 patients had TP53 germline mutations. Five (7%) de novo mutations were identified, as well as an additional 10 TP53 germline mutations likely to be de novo by family history. The frequency of de novo TP53 mutations in this patient sample is at least 7% and may be as high as 20%. Conclusions: The possibility that de novo germline TP53 mutations are relatively common has implications for testing and the identification of potential Li–Fraumeni syndrome in patients with little or no family history of cancer.

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Metadata

Authors
Gonzalez, K. D., Buzin, C. H., Noltner, K. A., Gu, D., Li, W., Malkin, D., & Sommer, S. S.
Venue
Journal of Medical Genetics
Publisher
BMJ
Published
2009-06-25
Volume
46
Issue
10
Pages
689-693
ISSN
  • 0022-2593 (ISSN-L)
  • 1468-6244
OpenAlex
W2123636830
Cited by
170
References
2
FWCI
3.13
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: High frequency of de novo mutations in Li–Fraumeni syndrome. https://app.cochat.ai/papers/10.1136/jmg.2008.058958
The paper
Gonzalez, K. D., Buzin, C. H., Noltner, K. A., Gu, D., Li, W., Malkin, D., & Sommer, S. S. (2009). High frequency of de novo mutations in Li–Fraumeni syndrome. Journal of Medical Genetics. https://doi.org/10.1136/jmg.2008.058958

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