Acro Biosystems
SARS-CoV-2 Spike S2 Protein, His Tag | S2N-C52H5
- SKU:
- S2N-C52H5
- UPC:
- MPN:
- Host:
- HEK293
- Molecule:
- Spike S2
- Species:
- SARS-CoV-2
- Tag:
- His Tag
Description
SARS-CoV-2 Spike S2 Protein, His Tag | S2N-C52H5 | Acro Biosystems | SARS-CoV-2 Proteins
Synonym
Spike, S2 protein, Spike glycoprotein Subunit2, S glycoprotein Subunit2, Spike protein S2
Source
SARS-CoV-2 S2 protein, His Tag (S2N-C52H5) is expressed from human 293 cells (HEK293). It contains AA Ser 686 - Pro 1213 (Accession # QHD43416.1). Proline substitutions (F817P, A892P, A899P, A942P, K986P, V987P) are introduced to prevent the formation of aggregates in the course of protein production.
Molecular Characterization
This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 60.0 kDa. The protein migrates as 65-115 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
Endotoxin
Less than 1.0 EU per μg by the LAL method.
Purity
>90% 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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