Recombinant SARS-CoV-2 S - Trimer (WT) Protein, C-His (VK474081) expressed in Mammalian Cells, spanning Met1-Gln1208. Purity: >90% by SDS-PAGE.
Highlights
●His-Tagged — N-terminal 6×His tag for IMAC purification.
●Mammalian Expression — Proper folding and native glycosylation.
●High Purity — >90% purity verified by SDS-PAGE.
Sistema de expresión
Mammalian Cells
Número de acceso
P0DTC2
Longitud de proteína
Met1-Gln1208
Aplicaciones
ELISA, Immunogen, SDS-PAGE, WB, Bioactivity testing in progress
Especies
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
Naturaleza
Recombinant
Nivel de endotoxinas
Please contact with the lab for this information.
Pureza
>90% as determined by SDS-PAGE.
Forma
Lyophilized
Buffer de almacenamiento
Lyophilized from a solution in PBS pH 7.4, 1 mM EDTA, 4% Trehalose, 1% Mannitol.
Consulte la información específica del buffer en la copia impresa del datasheet o en el COA específico del lote.
Reconstitución
Reconstitute in sterile water for a stock solution. Adjust the volume of sterile water so that, after reconstitution, the final stock concentration matches the value indicated on the product label or datasheet.
RECONSTITUTION PROTOCOL
1. Allow the product to be reconstituted and the reconstitution diluent to reach room temperature.
2. Tap or briefly centrifuge the product vial before opening to dislodge any lyophilized material that may be dispersed on the wall or cap of the vial.
3. Use the diluent and stock concentration recommended in the product datasheet. If preparing a stock concentration higher than recommended, contact Technical Service.
4. After adding the diluent, re-cap the vial and invert gently by hand or place on a slow rocking platform to allow the reconstitution diluent to coat all the surfaces inside the vial. Note: Do not mix by vortexing or by pipetting the material up and down.
5. Allow the vial to sit at room temperature with gentle agitation for at least 15 minutes before aliquotting or using.
6. Store the reconstituted material in single use aliquots in polypropylene or siliconized tubes. Aliquots of 10 μL or larger are recommended.
Envío
In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.
Estabilidad y almacenamiento
Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for frequent use. Store at -20 to -80°C for twelve months from the date of receipt.
Nombres alternativos
Spike glycoprotein, S glycoprotein, E2, Peplomer protein, Spike protein S1, Spike protein S2, Spike protein S2', S, 2
Fondo
Spike glycoprotein (Spike Protein (Trimer)) is a ~141 kDa protein. Attaches the virion to the cell membrane by interacting with host receptor, initiating the infection. The major receptor is host ACE2. When S2/S2' has been cleaved, binding to the receptor triggers direct fusion at the cell membrane. When S2/S2' has not been cleaved, binding to the receptor results in internalization of the virus by endocytosis using host TFRC and GRM2 and leading to fusion of the virion membrane with the host endosomal membrane. Alternatively, may use NRP1/NRP2 and integrin as entry receptors.
1. Hoffmann, M. et al. (2020) Cell 181, 271-280.e8. PMID: 32142651
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