International Journal of Oral Biology

The Korean Academy of Oral Biology (대한구강생물학회)
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Development of Quantitative Real-Time PCR Primers for the Detection of Aggregatibacter actinomycetemcomitans

  • Park, Soon-Nang (Department of Oral Biochemistry, School of Dentistry, Chosun University) ;
  • Park, Jae-Yoon (Department of Biochemistry and Molecular Biology, Medical school, Chosun University) ;
  • Kook, Joong-Ki (Department of Oral Biochemistry, School of Dentistry, Chosun University)
  • Received : 2010.11.19
  • Accepted : 2010.12.16
  • Published : 2011.03.31
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Abstract

The purpose of this study was to develop species-specific real-time quantitative PCR (RT-qPCR) primers for use in the detection of Aggregatibacter actinomycetemcomitans. These primers were designed based on the nucleotide sequences of the RNA polymerase ${\beta}$-subunit gene (rpoB). We assessed the specificity of the primers against nine strains of A. actinomycetemcomitans, eight strains (three species) of the Haemophilus genus, and 40 strains of 40 other oral bacterial species. Primer sensitivity was determined by testing serial dilutions of the purified genomic DNAs of A. actinomycetemcomitans ATCC $33384^T$. Our data reveal that we had obtained species-specific amplicons for all of the tested A. actinomycetemcomitans strains, and that none of these amplicons occurred in any of the other species. Our PCR protocol proved able to detect as little as 2 fg of A. actinomycetemcomitans chromosomal DNA. Our findings suggest that these qRT-PCR primers are suitable for application in epidemiological studies.

Keywords

References

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