Active Recombinant Influenza B (B/Massachusetts/03/2010) HA Protein, His-tagged

• Cat.No.: HA-713V
• Product Overview: Recombinant Influenza B virus (B/Massachusetts/03/2010) hemagglutinin ( AGB07680.1) (Met1-Thr548), termed as HA, was expressed with a polyhistidine tag at the C-terminus.

Specification

• Species: Influenza B
• Source: Insect Cells
• Tag: His
• Protein Length: 1-548 a.a.
• Predicted N Terminal: Asp 16
• Form: Lyophilized from sterile 20 mM Tris, 500 mM NaCl, pH 7.0, 10 % glycerol, 5%~8% trehalose and mannitol.
• Bio-activity: Measured by its ability to agglutinate guinea pig red blood cells. HA titer is 0.01-0.05μg/mL for 1% GRBC.
• Molecular Mass: The recombinant hemagglutinin of Influenza B virus (B/Massachusetts/03/2010) consists 544 amino acids and predicts a molecular mass of 59.1 kDa.
• Endotoxin: < 1.0 EU per μg of the protein as determined by the LAL method.
• Purity: >95 % as determined by SDS-PAGE.
• Stability: Samples are stable for up to twelve months from date of receipt at -70ºC.
• Storage: Store it under sterile conditions at -20ºC~-70ºC. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
• Reconstitution: It is recommended that sterile water be added to the vial to prepare a stock solution of 0.25 ug/ul. Centrifuge the vial at 4℃ before opening to recover the entire contents.