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Cat.No.:PKSR030503
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Synonyms | S1 protein;2019-nCoV S1 protein;coronavirus S1 Protein;cov S1 Protein |
Species | SARS-CoV-2 |
Expression_host | HEK293 Cells |
Sequence | Val16-Arg685 |
Accession | YP_009724390.1 |
Mol_Mass | 76.5 kDa |
Tag | C-His |
Bio_Activity | Immobilized human ACE2 protein (Fc tag)(Cat: PKSH031870) at 2 μg/mL (100 μL/well) can bind Recombinant 2019-nCoV S1 Protein (His Tag) (PKSR030503), the EC50 of Recombinant 2019-nCoV S1 Protein (His Tag) (Cat: PKSR030503) is 200-600 ng/mL. |
Purity | > 90 % as determined by reducing SDS-PAGE. |
Endotoxin level | < 1.0 EU per μg of the protein as determined by the LAL method. |
Storage | Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months. |
Shipping | This product is provided as lyophilized powder which is shipped with ice packs. |
Formulation | LyopHilized from sterile PBS, pH 7.4. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
Reconstitution | Please refer to the printed manual for detailed information. |