1. Identification of mycobacterial species by PCR sequencing of quinolone resistance-determining regions of DNA gyrase genes.
- Author
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Dauendorffer JN, Guillemin I, Aubry A, Truffot-Pernot C, Sougakoff W, Jarlier V, and Cambau E
- Subjects
- Base Sequence, DNA, Bacterial analysis, Fluoroquinolones, Humans, Microbial Sensitivity Tests, Molecular Sequence Data, Mycobacterium drug effects, Mycobacterium enzymology, Polymerase Chain Reaction, Protein Structure, Tertiary genetics, Sequence Homology, Nucleic Acid, Anti-Infective Agents pharmacology, DNA Gyrase genetics, Drug Resistance, Bacterial genetics, Mycobacterium genetics
- Abstract
The determination of the amino acid sequence of quinolone resistance-determining regions (QRDRs) in the A and B subunits of DNA gyrase is the molecular test for the detection of fluoroquinolone resistance in mycobacteria. We looked to see if the assignment of mycobacterial species could be obtained simultaneously by analysis of the corresponding nucleotide sequences. PCR sequencing of gyrA and gyrB QRDRs was performed for 133 reference and clinical strains of 21 mycobacterial species commonly isolated in clinical laboratories. Nucleotide sequences of gyrA and gyrB QRDRs were species specific, regardless of fluoroquinolone susceptibility.
- Published
- 2003
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