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MERS-CoV ORF4b Recombinant Protein (N-His) (VK073032)

MERS-CoV ORF4b Recombinant Protein (N-His)
MERS-CoV ORF4b Recombinant Protein (N-His)
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Overview
Catalog No.VK073032
Description
Recombinant MERS-CoV ORF4b Protein, N-His (VK073032) expressed in E. coli. Purity: >90% by SDS-PAGE.
Highlights
  • His-Tagged — N-terminal 6×His tag for IMAC purification.
  • E. coli Expression — High-yield, cost-effective production.
  • High Purity — >90% purity verified by SDS-PAGE.
Expression systemE. coli
AccessionK9N643
Protein lengthMet1-Phe246(Pro44His)
ApplicationsELISA, Immunogen, SDS-PAGE, WB, Bioactivity testing in progress
SpeciesMiddle East respiratory syndrome-related coronavirus (MERS-CoV)
Nature Recombinant
Endotoxin level Please contact with the lab for this information.
Purity >90% as determined by SDS-PAGE.
Predicted molecular weight 30.75 kDa
Form Lyophilized
Storage buffer Lyophilized from a solution in PBS pH 7.4, 1 mM EDTA, 4% Trehalose, 1% Mannitol.

Please refer to the specific buffer information in the hardcopy of datasheet or the lot-specific COA.

Reconstitution Reconstitute in sterile water for a stock solution. Adjust the volume of sterile water so that, after reconstitution, the final stock concentration matches the value indicated on the product label or datasheet.

RECONSTITUTION PROTOCOL
1. Allow the product to be reconstituted and the reconstitution diluent to reach room temperature.
2. Tap or briefly centrifuge the product vial before opening to dislodge any lyophilized material that may be dispersed on the wall or cap of the vial.
3. Use the diluent and stock concentration recommended in the product datasheet. If preparing a stock concentration higher than recommended, contact Technical Service.
4. After adding the diluent, re-cap the vial and invert gently by hand or place on a slow rocking platform to allow the reconstitution diluent to coat all the surfaces inside the vial. Note: Do not mix by vortexing or by pipetting the material up and down.
5. Allow the vial to sit at room temperature with gentle agitation for at least 15 minutes before aliquotting or using.
6. Store the reconstituted material in single use aliquots in polypropylene or siliconized tubes. Aliquots of 10 μL or larger are recommended.
Shipping In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.
Stability and Storage Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for frequent use. Store at -20 to -80°C for twelve months from the date of receipt.
Alternate NamesNon-structural protein ORF4b; ORF4b; ORF4b
Background

Non-structural protein ORF4b is a ~28 kDa protein. Plays a role in the inhibition of host innate immunity by inhibiting the interaction between host IKBKE and MAVS. In turn, this inhibition prevents the production of host interferon beta. Additionally, inhibits host NF-kappa-B by interacting with host KPNA4 and thereby preventing the translocation of the NF-kappa-B complex into the nucleus by this importin.

1. Canton, J. et al. (2018) PLoS pathogens 14, e1006838. PMID: 29370303
Note For research use only
Images
  • MERS-CoV ORF4b Recombinant Protein (N-His)

    SDS-PAGE

    SDS-PAGE for Recombinant MERS-CoV ORF4b Protein, N-His

References
Formula
Mass (g) = Concentration (mol/L) × Volume (L) × MW (g/mol)
Enter any 2 of Mass, Concentration, Volume + Molecular Weight to solve for the unknown.
Mass
=
Concentration
×
Volume
Molecular Weight *
g/mol
Formula
C₁ × V₁ = C₂ × V₂
Enter any 3 of the 4 values to solve for the unknown.
Stock Solution
C₁ (Stock Conc.)
×
V₁ (Stock Vol.)
=
Working Solution
C₂ (Working Conc.)
×
V₂ (Working Vol.)
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