FIG 4.

Flagellar class 2 and 3 genes are downregulated in the ΔyeiE mutant. Relative expression of the indicated genes from the ΔyeiE mutant compared with that of the WT in late exponential growth in rich medium. Each data point represents the mean from triplicate samples from one biological replicate; means ± standard deviations (SD) are indicated. Statistical significance was determined by Student's t test (P < 0.05). * indicates a significant difference in relative levels of expression of the given gene.