title: Proteolytic cleavage of influenza virus hemagglutinins: primary structure of the connecting peptide between HA1 and HA2 determines proteolytic cleavability and pathogenicity of Avian influenza viruses.
mesh_terms: D000595:Amino Acid Sequence; D006389:Hemagglutinins, Viral / Q000032:analysis; D009980:Influenza A virus / Q000276:immunology* / Q000472:pathogenicity; D007526:Isoelectric Point; D010447:Peptide Hydrolases / Q000378:metabolism*
chemical_list: D006389:Hemagglutinins, Viral; D010447:Peptide Hydrolases