Extracellular domain of influenza A virus haemagglutinin (HA) protein (Puerto Rico/8/1934 H1N1 strain).
HA binds to sialic acid on surface receptors of target cells and mediates viral entry through endocytosis.
Influenza A (H1N1) viruses are currently circulating in the population and are related to the flu pandemic 2009 H1N1 that emerged in the spring of 2009.
Extracellular domain of influenza A virus haemagglutinin (HA) protein (Puerto Rico/8/1934 H1N1 strain).
HA binds to sialic acid on surface receptors of target cells and mediates viral entry through endocytosis.
Influenza A (H1N1) viruses are currently circulating in the population and are related to the flu pandemic 2009 H1N1 that emerged in the spring of 2009.