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Osmoregulation in S. enterica serovar Typhi 9941 (hns99 ΔompR). Expression of the ompS1-lacZ fusions constructs of different lengths in S. enterica serovar Typhi IMSS-41 ΔompR and STY9941 hns99 ΔompR at low (NB) and high (NB + 300 mM NaCl) osmolarities is shown. The number below each bar indicates the length of the ompS1 regulatory region fused to lacZ. Error bars indicate standard deviations.
