Large BRCA1 and BRCA2 genomic rearrangements in Danish high risk breast-ovarian cancer families

作者: Thomas v. O. Hansen , Lars Jønson , Anders Albrechtsen , Mette K. Andersen , Bent Ejlertsen

DOI: 10.1007/S10549-008-0088-0

关键词: Multiplex ligation-dependent probe amplificationGeneticsGene duplicationGene rearrangementBreakpointExonSNP arrayMutationChromosome 17 (human)BiologyCancer researchOncology

摘要: BRCA1 and BRCA2 germ-line mutations predispose to breast ovarian cancer. Large genomic rearrangements of account for 0-36% all disease causing in various populations, while large are more rare. We examined 642 East Danish and/or cancer patients whom a deleterious mutation was not detected by sequencing using the multiplex ligation-dependent probe amplification (MLPA) assay. identified 15 with 7 different rearrangements, including exon 5-7 deletion novel breakpoint, 13 duplication, 17-19 deletion, 3-16 20 breakpoint as well two 17-18 19 deletions. The accounted 9.2% (15/163) Denmark. Nine had BRCA1. By SNP analysis we find that share 5 Mb fragment chromosome 17, BRCA1, indicating represents founder mutation.

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