FIG. 6.
DNA sequence alignment of putative promoter sequences upstream of the R. lupini (Rl) and S. meliloti (Sm) fla genes. flaA∗ denotes a secondary promoter sequence further upstream from the flaA gene (28). Capital letters indicate homology with consensus residues at a given alignment position. The R. lupini and S. meliloti (Rl/Sm) flagellin promoter consensus sequence was derived from a minimum plurality of four matches (except for position 3 of the −10 box, which was adapted to the highly active flaA promoter sequences). The consensus sequences of V. parahaemolyticus polar flagellar (VPA) (23) and E. coli ς28 (11) promoters are shown for comparison.