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Quencher Extension for Single Nucleotide Polymorphism Quantification in Bacterial Typing and Microbial Community Analyses

 Last Update: 2021-02-14
 Source: Internet
 Author: User

Tags

primer

thermocycling

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Quencher extension is a novel single-step closed tube real-time method to quantify single nucleotide polymorphisms (SNPs) in combination with primer extension. A probe with a 5′-reporter is single-base extended with a dideoxy nucleotide containing a quencher if the target SNP allele is present. The reaction is measured from the quenching (reduced fluorescence) of the reporter. The relative amount of a specific SNP allele is determined from the nucleotide incorporation rate in a thermocycling reaction. The quencher extension protocol presented was developed for SNP allele quantification in
Listeria monocytogenes
and for microbial community analyses.

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