Hemagglutinin and antibodiesPDB ID: 1QFU
Hemagglutinin is found on the surface of influenza virus, where it binds to cells and initiates infection. This structure includes the portion that extends outside the viral envelope, with several fragments of antibodies bound.
A complex of influenza hemagglutinin with a neutralizing antibody that binds outside the virus receptor binding site.
Fleury, D., Barrere, B., Bizebard, T., Daniels, R.S., Skehel, J.J., Knossow, M.
Journal: (1999) Nat.Struct.Biol. 6: 530-534