Organization of major genes for (A) SPI-3, (B) ethanolamine utilization, (C) propanediol utilization, and (D-F) flagellar biosynthesis and motility. The names of genes are listed to the left of the arrow, an (*) next to the gene indicates the presence of at least one ArcA motif in the 5' - region, the numbers listed to the right of the arrows indicates the ratio of gene expression in the arcA mutant relative to that in the WT, and the shading corresponds to the level of gene expression. NR = no expression ratio.
Evans et al. BMC Microbiology 2011 11:58 doi:10.1186/1471-2180-11-58