Product Description |
Recombinant SARS-COV-2 Spike S is expressed from HEK293 with His tag and Avi tag at the C-Terminus.It contains Val16-Glu1188. |
Product Background |
The spike protein (S) of coronavirus (CoV) attaches the virus to its cellular receptor, angiotensin-converting enzyme 2 (ACE2). A defined receptor-binding domain (RBD) on S mediates this interaction.The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity. |
Product Category |
Recombinant Protein |
Protein |
Spike S Trimer |
Synonyms |
S protein; Spike glycoprotein; S glycoprotein; COVID-19 |
Accession |
|
Species |
SARS-COV-2 |
Biotinylated |
no |
Amino Acid Range |
Val16-Glu1188 |
Molecular Weight |
The protein has a predicted MW of 136.6 kDa. Due to glycosylation, the protein migrates to 175-230 kDa based on Bis-Tris PAGE result. |
Activity |
Immobilized SARS-COV-2 Spike S Trimer, His Tag at 1ug/ml (100ul/Well). Dose response curve for Human ACE2, hFc Tag with the EC50 of 18.0ng/ml determined by ELISA. See testing image for detail. |
Product Tag |
C-His-Avi |
Expression System |
HEK293 |
Purity |
> 95% as determined by Bis-Tris PAGE |
Endotoxin |
Less than 1EU per ug by the LAL method. |
Form |
Lyophilized |
Shipping |
Shipped at ambient temperature. |
Formulation |
Lyophilized from 0.22um filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization. |
Reconstitution |
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 ug/ml is recommended. Dissolve the lyophilized protein in distilled water. |
Stability And Storage |
Reconstituted protein stable at -80°C for 12 months, 4°C for 1 week. Use a manual defrost freezer and avoid repeated freeze-thaw cycles. |
|
|
Immobilized SARS-COV-2 Spike S Trimer, His Tag at 1ug/ml (100ul/Well). Dose response curve for Human ACE2, hFc Tag with the EC50 of 18.0ng/ml determined by ELISA. |
|
|
SARS-COV-2 Spike S Trimer on Bis-Tris PAGE under reduced condition. The purity is greater than 95%. |
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