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. 2000 Oct 24;97(22):12283–12288. doi: 10.1073/pnas.97.22.12283

Figure 1.

Figure 1

The sipA gene is required for S. typhimurium to induce PMN transmigration. WT (SL1344) or sipA mutant (EE633) S. typhimurium strains that contain no plasmid (empty bars) or a plasmid expressing sipA (pAK68C) (filled bars) were assessed for their ability to promote PMN transmigration. Data are presented as the mean ± SD of assays performed in triplicate. WT or sipA mutant strains that contain the pBH vector plasmid behaved identically to the same strains containing no plasmid (data not shown).