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Schematic illustration of the breast cancer susceptibility gene 1 (BRCA1) promoter region of methylation-specific polymerase chain reaction (PCR) by two different primers. The view of the genomic context was adapted from UCSC Genome Browsers. The black bar shows the predicted GC-rich region in the promoter region. The amplification region for Esteller and Baldwin primers are chr17: 43125355–43125429, chr17: 43125360–43125541, respectively (assembly version: GRCh38/hg38).
