Active Recombinant Influenza A H5N9 (A/chicken/Italy/22A/1998) HA protein(Met1-Gln527), His-tagged

• Cat.No.: HA-3252V
• Product Overview: Recombinant Influenza A H5N9 (A/chicken/Italy/22A/1998) HA protein(ABR37720.1)(Met1-Gln527), fused with His tag, was expressed in Insect Cells.

Specification

• Species: Influenza A H5N9 (A/chicken/Italy/22A/1998)
• Source: Insect Cells
• Tag: His
• Protein Length: Met1-Gln527
• Form: Lyophilized from sterile 20 mM Tris, 500 mM NaCl, pH 7.4, 10 % glycerol.Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
• Bio-activity: 1. Measured by its ability to bind with Neu5Aca2-3Galb1-4GlcNAcb-PAA-biotin (01-077) using the Octet RED System.2. Measured by its ability to agglutinate guinea pig red blood cells. HA titer is 0.1-1μg/mL for 1% GRBC.
• Molecular Mass: The recombinant hemagglutinin of Influenza A virus (A/chicken/Italy/22A/1998(H5N9)) comprises 522 amino acids and has a predicted molecular mass of 59.3 kDa. The apparent molecular mass of the protein is approximately 60.1 kDa in SDS-PAGE under reducing conditions.
• Endotoxin: < 1.0 EU per μg of the protein as determined by the LAL method
• Purity: > 95 % as determined by SDS-PAGE
• Storage: Samples are stable for up to twelve months from date of receipt at -20°C to -80°C
  Store it under sterile conditions at -20°C to -80°C. 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 0.2 ug/ul. Centrifuge the vial at 4°C before opening to recover the entire contents.