Pyrophosphorolysis-activatable oligonucleotides may facilitate detection of rare alleles, mutation scanning and analysis of chromatin structures.

Abstract excerpt

Pyrophosphorolysis-activated polymerization (PAP) was initially developed to enhance the specificity of allele-specific PCR for detection of known mutations in the presence of a great excess of wild-type allele. The high specificity of PAP derives from the serial coupling of pyrophosphorolysis-mediated activation of a pyrophosphorolysis-activatable oligonucleotide (P*) followed by extension of the activated...

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