Recombinant SARS-CoV-2 Nucleocapsid Protein with C-terminal His-tag, derived from the transfected human HEK293 cells.
As low as $335.00
In stock
Only %1 left
Catalog #:
230-30164
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Product Description

Specifications

Size 100 ug, 500 ug, 1000 ug
Species SARS-CoV-2
Accession Number QHD43423
Protein Name / Synonyms Nucleocapsid Protein, N Protein
Expressed Region Met1-Ala419
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 47 kDa. Due to the abundant glycosylation, it migrates as approximately 55 kDa major protein band in SDS-PAGE under DTT, beta-mercaptoethanol reducing conditions. The minor small protein bands (25-30 kDa) likely the cleaved products. 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 (47 kDa), thus indicating that the untreated recombinant protein (Lane 2) was glycosylated.
Lane 1: Protein standard ladder (kDa)
Lane 2: Untreated protein under reducing conditions. Shown one ˜55 kDa major band (red arrow) and 25-30 kDa multiple of minor bands (green arrows). This small bands are likely cleavage products. All bands were confirmed by Western blotting (Lane 5). Other minor large bands (>80 kDa) may be the trace amount of copurified proteins from host cells.
Lane 3: Treated protein with deglycosylation enzymes under native conditions. Shown one 47 kDa major band (red arrow) and two minor 22-30 kDa bands (green arrows).
Lane 4: Treated protein with deglycosylation enzymes under reducing conditions. Shown one 47 kDa major band (red arrow) and two minor 22-30 kDa bands (green arrows).
Lane 5: Western blotting analysis of Lane 1. Shown two major reaction bands (red arrow, green arrow).
Activity
Sandwich ELISA: this protein functions as a standard in conjunction with 130-10781 (capture antibody) and 130-10761 (detection antibody).
Standard curve
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.
M Norman, et al. Ultrasensitive high-resolution profiling of early seroconversion in patients with COVID-19. Nat Biomed Eng (2020).
P Nguyen-Contant, et al. S Protein-Reactive IgG and Memory B Cell Production after Human SARS-CoV-2 Infection Includes Broad Reactivity to the S2 Subunit. mBio. 11 (5) e01991-20 (2020).
Keshavarz B, et al. Quantitative measurement of IgG to severe acute respiratory syndrome coronavirus-2 proteins using immunoCAP. Int Arch Allergy Immunol. 182(5):417-424 (2021).
Year:
2021
Journal Name:
Int Arch Allergy Immunol
PubMed ID:
123456
  1. Great product
    Rating
    100%
    It works well for fluorescent labelling and confocal microscopy.

    Review by

    from University of California, Davis,

    on

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