Cat#:RP-122A;Product Name:Recombinant Influenza A H5N1 Hemagglutinin / HA Protein (His Tag);Synonym:HA;Description:A DNA sequence encoding the extracellular domain of Influenza A virus (A/bar-headed goose/Qinghai/14/2008 (H5N1)) (ACL28277.1) HA (Met 1-Gln 531) with cleavage site mutated (RERRRKKR 鈫扵ETR,HA1+HA2, uncleaved) was expressed, with a C-terminal polyhistidine tag.;Source:Baculovirus-Insect Cells;Predicted N Terminal:Asp 17;Molecular Characterization:The recombinant hemagglutinin of Influenza A virus (A/bar-headed goose/Qinghai/14/2008 (H5N1)) comprises 522 amino acids and has a calculated molecular mass of 59.5 kDa as estimated in SDS-PAGE under reducing conditions.;Purity:Greater than 85 % as determined by SDS-PAGE;Endotoxin:< 1.0 EU per ug of the protein as determined by the LAL method;Bioactivity:Please contact us for detailed information;Formulation:Lyophilized from sterile 50mM Tris, 100mM NaCl, pH 8.0;Stability:Recombinant Proteins are stable for up to 1 year from date of receipt at -70℃;Reconstitution:Please see related COA for specific instructions.;Storage:Avoid repeated freeze-thaw cycles. In lyophilized state for 1 year (4-8℃); Upon reconstitution under sterile conditions for 2 weeks (4-8℃) or 3 months (-20℃ to -70℃).;