FIG 2.

(A) Prevalence of the major subunit allelic variants found in the ST131 lineage. The percentage of each afaE allele was determined by tBLASTn with a cut-off value of > 97% nucleotide identity and > 80% gene coverage. The afaE-XI, afaE-II, afaE-XII, and drbE-122 alleles were prevalent at < 1% (not shown). (B) Unrooted ML phylogenetic tree showing the relationship between the AfaE variants. The names in color represent the AfaE variants found in the ST131 lineage. The scale indicates the number of amino acid substitutions; numbers refer to the bootstrap values.