Hotspot mutations in cancer genes may be missed in routine diagnostics due to neighbouring sequence variants.

Abstract excerpt

The detection of hotspot mutations in key cancer genes is now an essential part of the diagnostic work-up in molecular pathology. Nearly all assays for mutation detection involve an amplification step. A second single nucleotide variant (SNV) on the same allele adjacent to a mutational hotspot can interfere with primer binding, leading to unnoticed allele-specific amplification of the wild type allele and thereby...

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