Heterogenous point mutations in the BRCA1 breast cancer susceptibility gene occur in high frequency at the site of homonucleotide tracts, short repeats and methylatable CpG/CpNpG motifs.


Heterogeneous mutations in the BRCA1 tumour suppressor gene are responsible for a large percentage of inherited breast cancers as well as breast/ovarian cancers in families with a high incidence of both cancer types. Over a hundred BRCA1 mutations have been reported, but little is known of the mechanism(s) responsible for BRCA1 mutagenesis. To determine the… (More)


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