Figure 3
From: Electrostatic Variation of Haemagglutinin as a Hallmark of the Evolution of Avian Influenza Viruses
Upper panel: 90° and 270° views of the RBD sub-region of H9N2 HA highlighting relevant surface epitopes. Lower panel: four-step 90° views of representative H9N2 RBDs highlighting ED mediated by mutation of specific residues.
