Figure 6
From: Analysis of hemagglutinin-mediated entry tropism of H5N1 avian influenza

Effect of HA substitutions Y105F, E190D and L194A on cell binding. (A) Coomassie staining of the wt and mutant HA89–340 proteins resolved by SDS-PAGE. (B) Binding of wt or mutant HA proteins to 293T or A549 cells.