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  • Title: p53 Testing for Li-Fraumeni and Li-Fraumeni-like syndromes.
    Author: Gonzalez K, Fong C, Buzin C, Sommer SS, Saldivar JS.
    Journal: Curr Protoc Hum Genet; 2008 Apr; Chapter 10():Unit 10.10. PubMed ID: 18428420.
    Abstract:
    Li-Fraumeni Syndrome (LFS; OMIM #151623) is an autosomal dominant cancer predisposition syndrome characterized by early onset tumors including sarcomas, breast cancer, leukemia, brain tumors, and adrenocortical carcinoma. Li-Fraumeni syndrome is primarily attributed to germline mutations in the p53 tumor suppressor gene, which encodes tumor protein 53. In addition to germline p53 mutations, the p53 gene is the most commonly mutated gene in human cancers, with as much as 50% of tumors containing somatic p53 mutations. This unit provides a protocol to perform germline mutation analysis of the p53 gene. The protocol includes steps for amplification and sequencing of the entire coding region of the p53 gene (exons 2 to 11). The protocol was designed for detecting germline alterations from DNA extracted from blood; however, with some additional optimization, it could also be used to detect somatic mutations in DNA extracted from tumors.
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