Influenza B HA (His Tag) recombinant protein

Influenza B HA (His Tag) recombinant protein

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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.

Hemagglutinin

AF093576; RASH1; P21RAS; AI451697; IHJ; NMF4; HRAS1; CTLO; HA; SPNA1; C-H-RAS; SPH; C-HA-RAS1; HAMSV; H-RASIDX; C-BAS/HAS; SPNA-1

B1AG46

HA

Human Cells

A DNA sequence encoding the N-terminal segment of Influenza B virus (B/Florida/4/2006) (Met 1-Arg 361) hemagglutinin (ACA33493.1), termed as HA1 subunit, was fused with a polyhistidine tag at the C-terminus.

Influenza B

The recombinant HA1 subunit of Influenza B virus (B/Florida/4/2006) hemagglutinin comprises 357 amino acids with the predicted molecular mass of 39 kDa. As a result of glycosylation, it migrates as an approximately 50-60 kDa band in SDS-PAGE under reducing conditions.

> 97 % as determined by SDS-PAGE