Fig 1.

Schematic diagram illustrates the alternative flagellin modification gene loci type A and type B.A. The flagella structural genes fliC and flgB flank the genes predicted to be involved in flagellin modification in the ribotype 012 strain 630 and the ribotype 027 strains. The gene adjacent to fliC in both loci is a predicted glycosyltransferase (GT) and the ORFs in grey are the remaining putative modification genes, predicted to be involved in flagellin modification.B. The predicted modification structures of the type A 630/RT017 strains and the type B RT027 strains. The black hexagon represents a HexNAc, the white circle represents a phosphate group, Me denotes a methyl group, dark gray triangles represent a deoxyhexose and the white square a heptose, the light gray diamond represents an unidentified structure.