protein

Hemagglutinin Recombinant Protein

MBS154165

0.05 mg

270 USD

Recombinant Protein

Hemagglutinin Recombinant Protein

[Hemagglutinin]

[H5N1 Hemagglutinin HA1; H5N1 Hemagglutinin; H5N1 HA1; HA1; Hemagglutinin]

[hemagglutinin; Hemagglutinin; hemagglutinin; HA1; HA2]

[HA]

[HA; HA]

Q692M2_9INFA

E Coli

568

aa. 17 - 338

~95%

Liquid

Store in working aliquots at -70 degree C. Avoid freeze/thaw cycles. When working with proteins care should be taken to keep recombinant protein at a cool and stable temperature. Shipping: Dry Ice.

ELISA (EIA), Western Blot (WB)

This recombinant protein can be used for WB and ELISA. For research use only.

SDS-PAGE

Buffer: 1X PBS containing 0.1% SDS and 0.02% NaN 3 . Fusion Tag: Fusion Partner: His-tag and strepII-tag at N-terminus

Species: Influenza A virus (A/chicken/Jilin/9/2004(H5N1))

Influenza A virus is a major public health threat, killing more than 30,000 people per year in the USA (1). Novel influenza virus strains caused by genetic drift and viral recombination emerge periodically to which humans have little or no immunity, resulting in devastating pandemics. Influenza A can exist in a variety of animals, but it is in birds that all subtypes can be found (2). These subtypes are classified based on the combination of the virus coat glycoproteins hemagglutinin (HA) and neuraminidase (NA) subtypes. HA interacts with host cell surface proteins containing oligosaccharides with terminal sialyl residues. Its extracellular region has two domains (HA1 and HA2); HA1 is cleaved from the main hemagglutinin protein by the host immune system. During 1997, an H5N1 avian influenza virus was determined to be the cause of death in 6 of 18 infected patients in Hong Kong (3). This more recent virulent strain of H5N1 is now seen in Africa and Europe, as well as in Southeast Asia. There is some evidence of human to human spread of this virus, but it is thought that the efficiency of this type of transmission is low (4). Virus isolated from a human infected with the H5N1 strain in 1997 could bind to oligosaccharides from human as well as avian sources, indicating its species-jumping ability (5). This HA1 recombinant protein is recognized by several hemagglutinin antibodies.

50365729

AAT76166

Q692M2

39 kDa (Calculated)

Binds to sialic acid-containing receptors on the cell surface, bringing about the attachment of the virus particle to the cell. This attachment induces virion internalization of about two third of the virus particles through clathrin-dependent endocytosis and about one third through a clathrin- and caveolin-independent pathway. Plays a major role in the determination of host range restriction and virulence. Class I viral fusion protein. Responsible for penetration of the virus into the cell cytoplasm by mediating the fusion of the membrane of the endocytosed virus particle with the endosomal membrane. Low pH in endosomes induces an irreversible conformational change in HA2, releasing the fusion hydrophobic peptide. Several trimers are required to form a competent fusion pore.

0.05 mg

270 USD