Recombinant Human Novel Coronavirus Spike glycoprotein (S) (E484K), partial (Active)

1Measured by its binding ability in a functional ELISA. Immobilized SARS-CoV-2-S1-RBD (E484K) at 2 μg/ml can bind human ACE2, the EC50 is 6.597-8.187 ng/ml. 2Measured by its binding ability in a functional ELISA. Immobilized SARS-CoV-2-S1-RBD (E484K) at 2 μg/ml can bind Biotin-S Antibody, the EC50 is 21.54-26.77 ng/ml.

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.

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