Cat#:RP-111A;Product Name:Recombinant Influenza A H1N1 Hemagglutinin / HA Protein (His Tag);Synonym:HA;Description:A DNA sequence encoding the extracellular domain (Met 1-Gln 528) of the influenza A hemagglutinin (A/Puerto Rico/8/34 (H1N1)) (ABD77675.1), was expressed, fused with a C-terminal polyhistidine tag.;Source:Human Cells;Predicted N Terminal:Asp 18;Molecular Characterization:The secreted recombinant influenza A H1N1 (A/Puerto Rico/8/1934 (H1N1)) HA comprises 522 amino acids and has a predicted molecular mass of 59 kDa. As a result of glycosylation, it migrates as an approximately 60-70 kDa band in SDS-PAGE under reducing cond;Purity:Greater than 90 % 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 PBS, pH 7.4;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℃).;