Figure 5

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