Recombinant SARS-CoV-2 S2 Subunit Protein (full length)

Recombinant SARS-CoV-2 S2 Subunit Protein with C-terminal tag, derived from the transfected human HEK293 cells.
$199.00
In stock
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Product Description

Specifications

Size 10 ug
Species SARS-CoV-2
Accession Number QHD43416
Protein Name / Synonyms Spike protein, S Protein, S2 Subunit
Expressed Region Met697-Pro1213
Expression System HEK293 cells
Tag C-terminal his-tag
Purification His-tag affinity purification by immobilized metal ion affinity chromatography (IMAC)
Purity >90 %
Purity Determined By SDS-PAGE under reducing conditions and visualized by Coomassie blue staining
Molecular Weight (kDa) Recombinant protein product has a calculated molecular mass of ∼60 kDa. Due to the abundant glycosylation, it migrates as approximately 80 kDa protein bands in SDS-PAGE under DTT, beta-mercaptoethanol reducing conditions. See deglycosylation analysis image below.
Format Liquid
Formulation Supplied as a 0.2 µm filtered solution in PBS (pH 7.4)
Concentration (lot specific) Lot specific (see the label on the vial), determined by BCA protein assay
Estimated Lead Time 1-2 business days
Shipping Type Blue ice
Storage -20°C
SDS-PAGE Image
SDS-PAGE
Figure 1. Deglycosylation of purified recombinant proteins. Purified proteins were untreated (Lane 2) or treated with Protein Deglycosylation Kit under native (Lane 3) or reducing (Lane 4) conditions. Deglycosylation treatment resulted in a mobility shift of the protein to produce one major band at the expected size (˜60 kDa), thus indicating that the untreated recombinant protein (Lane 2, ˜80 kDa) was glycosylated.
Lane 1: Protein standard ladder (kDa)
Lane 2: Untreated protein (˜80 kDa, red arrow) under reducing conditions
Lane 3: Partially cleaved protein (˜60 kDa, green arrow) with deglycosylation enzymes under native conditions
Lane 4: Fully cleaved protein (˜60 kDa, green arrow) with deglycosylation enzymes under reducing conditions

Stability & Storage

Shipping
Ice packs
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.

Related Coronavirus Proteins

Spike Protein, S1 Subunit
Spike Protein, S2 Subunit
Nucleocapsid Protein
S1 Subunit Protein (RBD) with C-terminal Fc tag
S1 Subunit Protein (RBD) with C-terminal His-tag
S1 Subunit Protein with C-terminal His-tag
S2 Subunit Protein with C-terminal His-tag
Nucleocapsid Protein with C-terminal His-tag

Custom Labeling Request

We can custom label this protein with biotin or fluorescent dyes (choose from violet, blue, green or red). Request now.
Shajahan A, et al. Deducing the N- and O- glycosylation profile of the spike protein of novel coronavirus SARS-CoV-2. Glycobiology, cwaa042 (2020).
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