SARS-CoV-2 S1 protein (HV69-70del, Y144del, N501Y, A570D, D614G, P681H), Fc Tag

Spike, S1 protein, Spike glycoprotein Subunit1, S glycoprotein Subunit1, Spike protein S1

SARS-CoV-2 S1 protein, Fc Tag (S1D-C5254) is expressed from human 293 cells (HEK293). It contains AA Val 16 - Arg 685 (Accession # QHD43416.1). The mutations (HV69-70del, Y144del, N501Y, A570D, D614G, P681H) were identified in the SARS-CoV-2 Alpha variant (Pango lineage: B.1.1.7; other names: 20I/501Y.V1 or VOC 202012/01).

Less than 1.0 EU per μg by the LAL method / rFC method.

>95% as determined by SDS-PAGE.

Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, 0.2 M Arginine, 150 mM NaCl, pH7.5 with trehalose as protectant.

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Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

This product is shipped at ambient temperature.

For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please avoid repeated freeze-thaw cycles.

• -20°C to -70°C for 12 months in lyophilized state;
• -70°C for 3 months under sterile conditions after reconstitution.