Figure 4

Three-dimensional (3D) structure of HA protein. (A) front view trimeric HA protein, (B) top view (receptor binding ___domain) trimeric HA protein, (C) monomeric HA, (D) ribbon structure of monomeric HA protein, (E) common mutation (mutated residue highlighted in red colour) found in all sequences of HA protein, and (F–Q). Group-wise specific mutations (red) other than common mutation (light grey) in the HA protein.