FIG 8.
Conservation of the PhoP box in the arn promoter among different Serratia species. Underlining, −10 region; shading, PhoP binding sites, separated by 5 bp.
Conservation of the PhoP box in the arn promoter among different Serratia species. Underlining, −10 region; shading, PhoP binding sites, separated by 5 bp.