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. Author manuscript; available in PMC: 2012 Dec 1.
Published in final edited form as: Immunotherapy. 2012 Feb;4(2):175–186. doi: 10.2217/imt.11.167

Figure 2. Structure of hemagglutinin and antigenic sites.

Figure 2

The illustration was prepared by using MacPymol© (DeLano Scientific, CA, USA) based on the structure of H3 hemagglutinin (Protein Data Bank accession code 1HGE). The aa forming antigenic site A were marked in red. Antigenic site B1, B2, C1, C2, D and E were marked in blue, forest green, purple, green, pink and yellow, respectively. Antigenic site I in HA2 was marked in magenta, sites II and IV were marked in orange and site III was labeled in cyan.

aa: Amino acid.