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Quantification of fimB and fimE expression. Expression of fimB and fimE in strains BEN2908 and BEN2908 ΔibeA was measured by quantitative real-time PCR as described in Materials and Methods, using the frr gene as a housekeeping gene standard. Results are relative expression ratios compared to expression in the WT strain. Gray bars, BEN2908; white bars, BEN2908 ΔibeA.
