Table S1, primers
Fig. S1, flhDC plasmids and mutant and wild-type migration rates
Fig. S2, effects of hns deletion on motility and FliG subunit organization
Fig. S3, H-NS allele expression in different backgrounds
Fig. S4, ydiV transcription in a Δhns strain
Fig. S5, cross-linking experiments with FliG and H-NS
Fig. S6, changes in gene expression associated with deletion of hns
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