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SV40 Large T Antigen Recombinant Protein (N-His) (VK099022)

SV40 Large T Antigen Recombinant Protein (N-His)
SV40 Large T Antigen Recombinant Protein (N-His)
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Overview
Catalog No.VK099022
Description
Recombinant SV40 Large T Antigen Protein, N-His (VK099022) expressed in E. coli, spanning Gly251-Asp627. 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
AccessionP03070
Protein lengthGly251-Asp627
ApplicationsELISA, Immunogen, SDS-PAGE, WB, Bioactivity testing in progress
SpeciesSimian virus 40 (SV40)
Nature Recombinant
Endotoxin level Please contact with the lab for this information.
Purity >90% as determined by SDS-PAGE.
Predicted molecular weight 45.78 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 NamesLarge T antigen, LT, LT-AG, 5.6.2.4, DNA 3'-5' helicase large T antigen
Background

Large T antigen is a ~81 kDa protein. Isoform large T antigen is a key early protein essential for both driving viral replication and inducing cellular transformation. Plays a role in viral genome replication by driving entry of quiescent cells into the cell cycle and by autoregulating the synthesis of viral early mRNA. Displays highly oncogenic activities by corrupting the host cellular checkpoint mechanisms that guard cell division and the transcription, replication, and repair of DNA. Participates in the modulation of cellular gene expression preceeding viral DNA replication. This step involves binding to host key cell cycle regulators retinoblastoma protein RB1/pRb and TP53.

1. Goetz, GS. et al. (1988) The Journal of biological chemistry 263, 383-92. PMID: 2826443
2. Wiekowski, M. et al. (1988) The Journal of biological chemistry 263, 436-42. PMID: 2826446
Note For research use only
Images
  • SV40 Large T Antigen Recombinant Protein (N-His)

    SDS-PAGE

    SDS-PAGE for Recombinant SV40 Large T Antigen 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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