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- Biotinylated SARS-CoV-2 (COVID-19) S1 protein, His, Avitag™ (MALS verified) | S1N-C82E8
Acro Biosystems
Biotinylated SARS-CoV-2 (COVID-19) S1 protein, His, Avitag™ (MALS verified) | S1N-C82E8
- SKU:
- S1N-C82E8
- UPC:
- MPN:
- Host:
- HEK293
- Molecule:
- Spike S1
- Species:
- SARS-CoV-2
- Tag:
- His Tag & Avi Tag
Description
Biotinylated SARS-CoV-2 (COVID-19) S1 protein, His, Avitag™ (MALS verified) | S1N-C82E8 | Acro Biosystems | SARS-CoV-2 Proteins
Synonym
Spike, S1 protein, Spike glycoprotein Subunit1, S glycoprotein Subunit1, Spike protein S1
Source
Biotinylated SARS-CoV-2 S1 protein, His,Avitag (S1N-C82E8) is expressed from human 293 cells (HEK293). It contains AA Val 16 - Arg 685 (Accession # QHD43416.1).
Predicted N-terminus: Val 16
Molecular Characterization
Online(Val 16 - Arg 685) QHD43416.
This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag™).
The protein has a calculated MW of 78.6 kDa. The protein migrates as 100-150 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
Biotinylation
Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
Biotin:Protein Ratio
The biotin to protein ratio is 0.5-1 as determined by the HABA assay.
Endotoxin
Less than 1.0 EU per μg by the LAL method.
Purity
>95% as determined by SDS-PAGE.
Formulation
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.
Contact us for customized product form or formulation.
Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
Storage
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
-20°C to -70°C for 12 months in lyophilized state;
-70°C for 3 months under sterile conditions after reconstitution.
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