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Nucleotide and amino acid sequences of the QRDR of the gyrA gene. Mutated codons are boldfaced and numbered. Positions of oligonucleotide probes encompassing regions 1 and 2 are shown. Region 1 oligonucleotides are all 20-mers. Region 2 oligonucleotides are 22-mers with the exception of D94N, which is a 23-mer.
