Journal
SCIENCE
Volume 297, Issue 5581, Pages 606-609Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1073834
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Funding
- NHLBI NIH HHS [R01HL52725, P01HL54785] Funding Source: Medline
- NIDDK NIH HHS [R01DK43889] Funding Source: Medline
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Fanconi anemia ( FA) is a rare autosomal recessive cancer susceptibility disorder characterized by cellular hypersensitivity to mitomycin C (MMC). Six FA genes have been cloned, but the gene or genes corresponding to FA subtypes B and D1 remain unidentified. Here we show that cell lines derived from FA-B and FA-D1 patients have biallelic mutations in BRCA2 and express truncated BRCA2 proteins. Functional complementation of FA-D1 fibroblasts with wild-type BRCA2 complementary DNA restores MMC resistance. Our results link the six cloned FA genes with BRCA1 and BRCA2 in a common pathway. Germ-line mutation of genes in this pathway may result in cancer risks similar to those observed in families with BRCA1 or BRCA2 mutations.
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