Active Stem Cell Factor (SCF)
Cat# APA120Po61-50ug
Size : 50ug
Brand : Cloud-Clone Corp
Contact local distributor :
Phone : +1 850 650 7790
Recombinant SARS-CoV-2 Spike Protein, S1 Subunit
Recombinant SARS-CoV-2 Spike Protein, S1 Subunit derived from E.coli
As low as
Product Description
Specifications
| Size | 100 ug, 250 ug |
|---|---|
| Species | SARS-CoV-2 |
| Accession Number | QHD43416 |
| Protein Name / Synonyms | SARS-CoV-2 Spike Protein, S1 Subunit, S protein, spike protein |
| Expressed Region | Val16 - Gln690 |
| Expression System | E. coli |
| Tag | N-terminal histidine tag |
| Purity | >80 % |
| Purity Determined By | SDS-PAGE under reducing conditions and visualized by Coomassie blue staining |
| Molecular Weight (kDa) | ∼75 kDa |
| Format | Liquid |
| Formulation | Filtered solution in 50 mM Tris-HCl, 500 mM NaCl, 600 mM arginine, 2 mM oxidized glutathione, 4 mM reduced glutathione, 0.2% PEG4000, 10% glycerol, 2 mM DTT, 20 mM Hepes (pH 9). |
| Concentration (lot specific) | Lot specific (see the label on the vial), determined by Bradford protein assay. |
| Estimated Lead Time | 1-2 business days |
| Shipping Type | Blue ice |
| Storage | -20°C |
Introduction
The SARS-CoV-2 spike (S) protein is a surface glycoprotein that mediates viral entry into host cells. The S1 subunit contains the receptor-binding domain (RBD), which is responsible for recognizing and binding to the ACE2 receptor. This interaction is the first step in viral infection, making the S1 subunit a critical focus for vaccine development and antiviral therapies.
Reference:
SDS-PAGE Image
Storage/Stability
Upon arrival, the protein may be stored for 2 weeks at 4°C. For long term storage, it is recommended to store at -20°C or -80°C in appropriate aliquots. Avoid repeated freeze-thaw cycles.