Quantitative detection of mutant alleles of the K-ras gene with minor groove binder-conjugated fluorogenic DNA probes.

Abstract excerpt

Tumor-specific point mutations are stable biomarkers compared with tumor-specific mRNA expression, and are therefore useful to detect occult tumor cells. These mutations have never been used for real-time quantitative polymerase chain reaction (RQ-PCR) assays, because the ability of conventional probes to discriminate between wild-type and mutant alleles is poor. Recently, DNA probes with conjugated minor groove...

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