Fig 7.

Locations of epitopes iv and vi on the H protein tetrameric structure. The four H protein molecules are shown in gray, light gray, purple, and light purple. SLAM is shown in translucent cyan. The amino acid residues demonstrated or suggested to constitute a portion of an epitope are shown in colors: residues on β-sheets 1, 2, 3, 4, 5, and 6 (18) are shown in blue, green, light green, yellow, orange, and red, respectively. (A) A tetrameric structure in form I (18). (B) A tetrameric structure in form II (18).