HA1/Hemagglutinin, H4N4 (Q0A4G1, HEK293, His)

The hemagglutinin (HA) protein is essential for viral attachment to host cells, binding to sialic acid receptors, and initiating virion internalization through clathrin-dependent or -independent pathways. As a class I viral fusion protein, HA determines host range and virulence, mediating viral penetration into the cytoplasm. HA1/Hemagglutinin Protein, H4N4 (Q0A4G1, HEK293, His) is the recombinant Virus-derived HA1/Hemagglutinin protein, expressed by HEK293 , with C-His labeled tag.