Structure and receptor specificity of the hemagglutinin from an H5N1 influenza virus.

Amino Acid Sequence Amino Acid Substitution Animals Antigenic Variation Binding Sites Birds Carbohydrate Conformation Cloning, Molecular Crystallography, X-Ray Glycosylation Hemagglutinin Glycoproteins, Influenza Virus/chemistry,genetics,immunology,metabolism Humans Influenza A Virus, H5N1 Subtype/chemistry,genetics,metabolism,pathogenicity Lung/virology Models, Molecular Molecular Sequence Data Mutation Polysaccharides/metabolism Protein Conformation Protein Folding Protein Structure, Tertiary Receptors, Virus/chemistry,metabolism Respiratory Mucosa/virology Sialic Acids/chemistry,metabolism Species Specificity Virulence

Hemagglutinin Glycoproteins, Influenza Virus Polysaccharides Receptors, Virus Sialic Acids hemagglutinin, avian influenza A virus