|甲型流感 H5N1 (A/whooper swan/Mongolia/244/2005) 血凝素 (Hemagglutinin / HA) 蛋白 (His 標籤)||HA|
|甲型流感 H5N1 (A/whooper swan/Mongolia/244/2005) Hemagglutinin 蛋白 (HA1 亞型) (His 標籤)||HA|
Influenza A virus is capable of rapid genetic change in mammals. In humans, the need to escape preexisting immunity exerts positive selection pressure on changes in amino acids comprising the antigenic sites of the surface glycoproteins, hemagglutinin (HA) and neuraminidase (NA). Pandemic influenza viruses cause significant mortality in humans. In the 20th century, 3 influenza viruses caused major pandemics: the 1918 H1N1 virus, the 1957 H2N2 virus, and the 1968 H3N2 virus. Influenza A virus subtype H5N1, also known as "bird flu", A(H5N1) or simply H5N1, is a subtype of the Influenza A virus which can cause illness in humans and many other animal species. A bird-adapted strain of H5N1, called HPAI A(H5N1) for "highly pathogenic avian influenza virus of type A of subtype H5N1", is the causative agent of H5N1 flu, commonly known as "avian influenza" or "bird flu".
Sino Biological Inc offers Recombinant Hemagglutinin Protein from the A/whooper swan/Mongolia/224/2005 (H5N1) for the research of Influenza.