| Product name | Recombinant SARS-CoV-2 Spike S1 Protein |
|---|---|
| Catalog No. | RP01259 |
| Description | Recombinant SARS-CoV-2(2019-nCoV) Spike S1 Protein is produced by HEK293 cells expression system. The target protein is expressed with sequence (Val11-Arg682) of SARS-COV-2(2019-nCoV) Spike S1 (Accession #YP_009724390.1) fused with an Fc, 6×His tag at the C-terminus. |
| Bio-Activity | 1.Measured by its binding ability in a functional ELISA. Immobilized Recombinant Human ACE2 at 2 μg/mL (100 μL/well) can bind Recombinant SARS-CoV-2 Spike S1, the EC50 of SARS-COV-2 Spike S1 is 6.79 ng/mL. 2.Immobilized Human ACE2 on COOH Chip can bind SARS-COV-2 Spike S1 with an affinity constant of 90.8 nM as determined in a SPR assay (Nicoya OpenSPR). |
| Purity | > 90% by SDS-PAGE. |
| Endotoxin | < 0.1 EU/μg of the protein by LAL method. |
| Formulation | Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4. or Supplied as a 0.22 μm filtered solution in PBS, pH 7.4.Contact us for customized product form or formulation. |
| Species | SARS-CoV-2 |
| Calculated MW | 101.92 kDa |
| Synonym | Envelope; SARS-CoV-2 Spike RBD (N501Y); Spike; Spike ECD; Spike RBD; Spike S1; Spike S2; Spike S2 ECD; S1-RBD protein; NCP-CoV RBD Protein; novel coronavirus RBD Protein; 2019-nCoV RBD Protein; S glycoprotein Subunit1 RBD Protein |
|---|---|
| Expression Host | HEK293 cells |
| Tag | C-hFc&His |
| Gene ID |
| Storage | Store at -20℃.Store the lyophilized protein at -20℃ to -80 ℃ up to 1 year from the date of receipt. After reconstitution, the protein solution is stable at -20℃ for 3 months, at 2-8℃ for up to 1 week. |
|---|---|
| Reconstitution | Centrifuge the vial before opening. Reconstitute to a concentration of 0.1-0.5 mg/mL in sterile distilled water. Avoid vortex or vigorously pipetting the protein. For long term storage, it is recommended to add a carrier protein or stablizer (e.g. 0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose), and aliquot the reconstituted protein solution to minimize free-thaw cycles. |
* For research use only. Not for therapeutic or diagnostic purposes.
