Evaluation of molecular-Beacon, TaqMan, and fluorescence resonance energy transfer probes for detection of antibiotic resistance-conferring single nucleotide polymorphisms in mixed Mycobacterium tuberculosis DNA extracts

J Clin Microbiol. 2006 Oct;44(10):3826-9. doi: 10.1128/JCM.00225-06.

Abstract

The ability of fluorescence resonance energy transfer, molecular-beacon, and TaqMan probes to detect single nucleotide polymorphism (SNP) in the presence of a wild-type allele was evaluated using drug resistance-conferring SNPs in mixed Mycobacterium tuberculosis DNA. It was found that both the absolute quantity and the ratio of alleles determine the detection sensitivity of the probe systems.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antitubercular Agents / pharmacology
  • DNA, Bacterial / genetics
  • Drug Resistance, Bacterial / genetics*
  • Fluorescence Resonance Energy Transfer / methods*
  • Mycobacterium tuberculosis / drug effects*
  • Mycobacterium tuberculosis / genetics*
  • Nucleic Acid Probes*
  • Polymerase Chain Reaction / methods*
  • Polymorphism, Single Nucleotide

Substances

  • Antitubercular Agents
  • DNA, Bacterial
  • Nucleic Acid Probes