ELISA, Immunogen, SDS-PAGE, WB, Bioactivity testing in progress
Species
Theiler's murine encephalomyelitis virus (TMEV)
Nature
Recombinant
Target
VP3
Endotoxin level
Please contact with the lab for this information.
Purity
>90%
Predicted molecular weight
27.67 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 Names
Genome polyprotein, Leader protein, L, Capsid protein VP0, VP4-VP2, Capsid protein VP4, P1A, Virion protein 4, Capsid protein VP2, P1B, Virion protein 2, Capsid protein VP3, P1C, Virion protein 3, Capsid protein VP1, P1D, Virion protein 1, Protein 2A, P2A, Protein 2B, P2B, Protein 2C, P2C, EC:3.6.4.13, Protein 3A, P3A, VPg, P3B, Protein 3B, Protease 3C, P3C, EC:3.4.22.28, Picornain 3C, RNA-directed RNA polymerase, RdRp, EC:2.7.7.48, 3D polymerase, 3Dpol, Protein 3D, 3D
Background
Genome polyprotein (VP3) is a ~256 kDa protein. Forms a complex with host RAN and probably binds to exportins carrying activated MAPK in order to mediate the hyperphosphorylation of host Phe/Gly containing nuclear pore proteins (Nups) resulting in cessation of active nucleocytoplasmic transport (Probable). Proteins with NLS signals fail to import, cellular mRNAs fail to export, and some proteins small enough for diffusion are not retained anymore (efflux). The resulting inhibition of cellular protein synthesis serves to ensure maximal viral gene expression and to evade host immune response. The leader protein also inhibits host interferon regulatory factor 3 (IRF3) dimerization, thereby blocking the transcriptional activation of IFN genes. Binds to host RNase L thereby preventing its activation by 2'-5' oligoadenylates in order to counteract the antiviral interferon-inducible OAS/RNase L pathway.
1. Ricour, C. et al. (2009) The Journal of general virology 90, 177-86. PMID: 19088287
2. Sorgeloos, F. et al. (2013) PLoS pathogens 9, e1003474. PMID: 23825954
3. Drappier, M. et al. (2018) PLoS pathogens 14, e1006989. PMID: 29652922
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