Figure 1From: Functional Impact of Sequence Alterations Found in BRCA1 Promoter/5'UTR Region in Breast/Ovarian Cancer Families from Upper Silesia, PolandSchematic representation of the 5' region of the BRCA1 gene and location of sequence alterations found in this gene fragment -1a and 1b represent two alternative first exons, 2 represents the exon 2 with the translation start site.Back to article page