| GENERAL INFORMATION | |
| Gene Name Synonym： | coronavirus spike; cov spike; ncov RBD; ncov s1; ncov s2; ncov spike; NCP-CoV RBD; NCP-CoV s1; NCP-CoV s2; NCP-CoV Spike; novel coronavirus RBD; novel coronavirus s1; novel coronavirus s2; novel coronavirus spike; RBD; S1; S2; Spike RBD |
| Protein Construction: | DNA sequence encoding the SARS-CoV-2 (2019-nCoV) spike protein S1 Subunit (QHD43416.1) (Val16-Arg685) was expressed with the Fc region of human IgG1 at the C-terminus. |
| Source: | 2019-nCoV |
| Expression Host: | HEK293 Cells |
| QC Testing | |
| Purity: | ＞85 % as determined by SDS-PAGE |
| Bio Activity： | Measured by its binding ability in a functional ELISA. Immobilized human ACE2 protein (His tag) at 2μg/mL (100μL/well) can bind SARS-CoV-2 (2019-nCoV) Spike Protein (S1 Subunit, Fc Tag), the EC50 of SARS-CoV-2 (2019-nCoV) Spike Protein (S1 Subunit, Fc Tag) is 25-60 ng/mL.
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| Endotoxin: | ＜ 1.0 EU per μg protein as determined by the LAL method. |
| Predicted N terminal: | Val 16 |
| Molecular Mass: | The recombinant SARS-CoV-2 (2019-nCoV) Spike Protein (S1 Subunit, Fc Tag) consists of 908 amino acids and predicts a molecular mass of 101.7 kDa. |
| Formulation: | Lyophilized from sterile PBS, pH 7.4. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA. Please contact us for any concerns or special requirements. |
| Usage Guide | |
| Stability & Storage: | Samples are stable for twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃ upon receiving. Recommend to aliquot the protein into smaller quantities for optimal storage. |
| Avoid repeated freeze-thaw cycles. | |
| Reconstitution: | Detailed reconstitution instructions are sent along with the products |
SDS-PAGE:
