Fig. 1
From: Different serotypes of Escherichia coli flagellin exert identical adjuvant effects
Characterization of the sequences of FliCH1, FliCH7, and FliCH19 flagellin. A Schematic representation of the FliCH1, FliCH7 and FliCH19 genes. The sequences in N-terminal regions (green) and C-terminal regions (blue) are highly conserved, whereas the sequences in central regions are hypervariable (orange). B Amino acid alignment of FliCH1, FliCH7, and FliCH19 sequences was performed by the MegAlign program. The amino acid residues that were the same among the three serotypes of E. coli flagellins are in green. The TLR5 recognized site (QRIRELTV) of these three serotypes of FliC was located in the 90–97th amino acid of the N-terminal, circled in a red rectangle