Fig 1.
Phylogenetic tree for all O-AGCs of E. coli.
The O-AGCs that show 98–99.9% relatedness are highlighted.
Fig 2.
Comparison of identical O-AGCs.
Table 1.
Comparison of O-AGC of O-groups that are 98–99.9% identical.
Fig 3.
O153 wzx and wzy genes amplified by PCR using primers from sequences presented in this investigation.
Lanes 1, 7, 13: Molecular weight markers. Lane 2: Positive control for O153 targeting wzx gene, Lane 3: Negative control, Lanes 4,5,6: wzx amplified for three clinical isolates. Lane 9: Positive control for O153 targeting wzy gene. Lane 10: Negative control, Lane 11,12,13: wzy amplified for three clinical isolates.
Table 2.
O-groups that may be potentially merged based on similarities in O-AGC nucleotide sequence and serological cross-reactions.