Recombinant 2019-nCoV coronavirus, Nucleocapsid protein, His-tagged

Recombinant COVID-19 (2019 novel coronavirus) Spike protein (S2 ECD) was fused to His-tag at C-terminus and expressed in Baculovirus-Insect cells. The spike (S) glycoprotein of coronaviruses contains protrusions that will only bind to certain receptors on the host cell.S1 mainly contains a receptor binding domain (RBD) and recognize the cell surface receptor. S2 essential for membrane fusion. S protein are important for neutralizing-antibody and T-cell responses, as well as protective immunity.

• Additional information:Reconstitution: It is recommended that sterile water be added to the vial to prepare a stock solution of 0.25 mg/ml. Centrifuge the vial at +4 degrees Celsius before opening to recover the entire contents.
• Storage and shipping:
  
  • Shipping: In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
  • Storage: Store it under sterile conditions at -20 to -80 centigrade. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
  • Stability: Samples are stable for up to twelve months from date of receipt at -20 to -80 centigrade.
• Notes:For research use only, not to be used for human or animal diagnostics or treatment.