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Structure and expression analysis of the oprD in LV and HV strains. A. Comparison of four loci (A, B, C and D) that differ between HV-Ab057and LV-Ab020. B. The different sequences in Locus C and Locus D. C. Locus C in HV-Ab057 (orange) and LV-Ab020 (purple). D. Genetic mutations in HV-Ab057 and LV-Ab020. E. Expression of the wild-type and mutant orpD gene in HV-Ab057 (orange) and the mutant gene LV-Ab020, respectively
