FIG 7.

Conservative analysis of three identified antibody resistant-related residues among different clades of H1 viruses. Sequence logos were employed to demonstrate the conservation of three antibody resistant-related residues (highlighted by arrows) in influenza virus strains from H1 clades. The proportion of individual residues in each clade is indicated by the height of the amino acid symbol. For conservative analysis, HA sequences from each clade were retrieved from the Influenza Research Database (IRD) and aligned for generating sequence logos (www.fludb.org).