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Effect of ΔtrfAB gene mutation on various antibiotic resistance determinants in strain NRS3. The results of spot plating population analysis of NRS3 and NRS3ΔtrfAB on teicoplanin-, vancomycin-, oxacillin-, and gentamicin-supplemented agar are shown. The serial spot dilutions are indicated on the right margin. The first 10-μl spot dilution corresponds to 1 × 105 CFU.
