Fig. 6.

YhaJ is highly conserved among prototypical gram-negative pathogens. (A) Maximum-likelihood tree generated from YhaJ-coding sequences of the prototypical gram-negative pathogens with the associated branch bootstrap fractions indicated. The percentage identity to the EHEC sequence as determined by BLASTp is indicated to the right of each species name. (B) Genomic context of yhaJ from the aforementioned isolates. The yhaJ ORF is indicated in red and all flanking genes are in gray. The gradient between schematics represents the percentage sequence similarity as indicated on the scale bar. Genes with no connecting gradient bar are unique to the context of each isolate.