Figure 2
From: Genetic drift evolution under vaccination pressure among H5N1 Egyptian isolates
Ribbon diagram of the trimeric HA molecule with depicts the amino acid residues differentiating variant strain (F10) from parent ones (F7-F9) shown in yellow; (P74S, D97N, H110R, S123P, R140G, F144Y, N165H, A184E). The majority of these sites are exterior residues. E359 (HA2- 29E) is present in F7-F10 isolates.