|Product name||Active Recombinant SARS-COV-2 Spike S1+S2 ECD(S-ECD) Protein|
|Description||Recombinant SARS-CoV-2 S1+S2 ECD (S-ECD) Protein with His tag (Wild type, pre-fusion state plus post-fusion state) is produced by HEK293 cells expression system. The target protein is expressed with sequence (Val11-Gln1208) of SARS-COV-2(2019-nCoV) S1+S2 ECD (S-ECD) (Accession #YP_009724390.1) fused with a 6×His tag at the C-terminus.|
|Bio-Activity||Measured by its binding ability in a functional ELISA. Immobilized Recombinant SARS-CoV-2 Spike S1+S2 ECD-His at 2 μg/mL (100 μL/well) can bind Recombinant Human ACE2 with a linear range of 0.15-9.92 ng/mL.|
|Purity||>97% by SDS-PAGE.|
|Endotoxin||< 0.1 EU/μg of the protein by LAL method.|
|Formulation||Supplied as a 0.22 μm filtered solution in PBS, pH 7.4.Contact us for customized product form or formulation.Contact us for customized product form or formulation.|
|Synonym||cov spike Protein; 2019-nCoV; ncov spike Protein; 2019-nCoV; coronavirus spike Protein; 2019-nCoV; S glycoprotein; COVID-19; S protein; Spike glycoprotein|
|Expressed Host||HEK293 cells|
|Storage||This product is stable at ≤ ‑70°C for up to 6 months from the date of receipt. |
For optimal storage, aliquot into smaller quantities after centrifugation and store at recommended temperature. Avoid repeated freeze-thaw cycles.
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* For research use only. Not for therapeutic or diagnostic purposes.