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Graphical representation of the Rv1755c-Rv1765c region: (A) the orientation of the genes is represented by arrows. The IS6110 in H37Rv are shown by black arrows. The deleted sequences in each strain were confirmed by PCR. The assumed substitution by Rvd2 in the strains 9375 and 9866 is shown in the figure. The asterisks indicate the truncated genes in H37Rv by IS6110 insertion. (B) Region amplified by PCR. H, H37Rv; (a) clinical strain 8088; (b) clinical strain 9866 and L, ladder.
