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Representative hybridization patterns obtained with line probe strips. S1 through S5, probes for wild-type (WT) sequences in the 75-bp hypervariable region of rpoB gene. Probes for specific mutations were as follows: R2, Asp-516-Val; R4a, His-526-Tyr; R4b, His-526-Asp; R5, Ser-531-Leu.
