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Comparison of Sf6 infection efficiency on ompA−C− S. flexneri expressing variant OmpAs. Relative titer of Sf6 on various strains at 25 °C (parent, ompA−C−, ompA−C− + pOAE.coli, ompA−C− + pOAS.flex, and ompA−C− + pOAS.flex expressing variant OmpAs). Amino acids with similar properties are shown with the same color-coding scheme. Each data point is an average of at least five separate experiments; error bars signify one standard deviation.
