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Development of a real-time PCR-based method for rapid differential identification of Mycobacterium species

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Authors
Lim, S. Y.; Kim, B. J.; Lee, M. K.; Kim, K.
Issue Date
2007-11-22
Publisher
Blackwell Publishing
Citation
Lett Appl Microbiol. 2008 Jan;46(1):101-6. Epub 2007 Nov 19.
Keywords
Bacterial Proteins/genetics*Bacterial Typing TechniquesDNA Primers/geneticsGene AmplificationHumans*Molecular Diagnostic TechniquesMolecular Probes/geneticsMycobacterium/*classification/genetics/isolation & purificationMycobacterium Infections/diagnosis/microbiologyPolymerase Chain Reaction/*methodsTransition Temperature
Abstract
AIMS: To develop a real-time PCR method for rapid differential identification of many clinically important mycobacteria to the species level. METHODS AND RESULTS: Eighteen Mycobacterium species that are considered clinically important were targeted for the identification. One primer pair and 21 pairs of hybridization probes (HybProbes) specific for the genus, species or complex were designed based on the rpoB gene sequences of mycobacteria. Twenty-five different Mycobacterium reference species were tested. In a single round of real-time PCR, all the nontuberculous mycobacteria (NTM) species tested were identified at the genus level and 16 of the 18 targeted species were differentially identified to the species or complex level during the amplification cycles; subsequent melting curve analysis allowed the specific identification of all the target species at the species or complex level without cross-reactivity with the other species. CONCLUSIONS: The developed real-time PCR assay rapidly identifies the NTM at the genus level and 18 clinically important Mycobacterium species at the species or complex level. SIGNIFICANCE AND IMPACT OF THE STUDY: This real-time PCR assay provides a useful tool for the rapid differentiation of most clinically important Mycobacterium species.
ISSN
0266-8254 (Print)
Language
English
URI
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=18028331

http://hdl.handle.net/10371/22097
DOI
https://doi.org/10.1111/j.1472-765X.2007.02278.x
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College of Medicine/School of Medicine (의과대학/대학원)Microbiology (미생물학전공)Journal Papers (저널논문_미생물학전공)
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