DNA Vaccination

pBOOST3-mcs

  • Product Name
  • pBOOST3-mcs
    Negative control plasmid for the pBOOST3 vaccine adjuvant plasmid
  • Cat.No.
  • ADJU-043CL
  • Content
  • 20 µg of lyophilized pBOOST3-mcs plasmid
    • 4 pouches of E. coli Fast-Media Zeo (2 TB and 2 Agar)
  • Storage and Stability
  • Products are shipped at room temperature.
    Lyophilized DNA is stable for 12 months when stored at -20°C.
    Resuspended DNA is stable for 12 months when stored at -20°C. Avoid repeated freeze-thaw cycles.
    Store E. coli Fast-Media Zeo at room temperature. Fast-Media pouches are stable 18 months when stored properly.
  • General Product Use

  • The pBOOST3-mcs plasmid is a negative control plasmid for use with pBOOST3-mTBK1. The pBOOST3-mTBK1 plasmid was developed as a genetic adjuvant for DNA vaccines to potentiate the immune response to a specific antigen. The pBOOST3-mTBK1 plasmid contains the mouse TANK-binding kinase 1 (mTBK1) gene. TBK1, a non-canonical IkB kinase, was shown to mediate the adjuvant effect of DNA vaccines. Administration of DNA vaccines induces the production of type I interferons and inflammatory cytokines in a CpG-independent manner but in TBK1-dependent manner.
    The method of plasmid DNA vaccine delivery is known to bias the immune response to a specific antigen towards a type 1 (T-cell) response. A DNA vaccine incorporated with genetic adjuvant such as the MyD88 or the TRIF gene has been shown to enhance immune responses. As TBK1 has been shown to play a crucial role in humoral responses, coadministration of a TBK1-expressing plasmid is expected to further boost DNA vaccine-induced immunogenicity.
  • Plasmid Features

  • hEF1 / HTLV prom is a composite promoter comprising the Elongation Factor-1α (EF-1α) core promoter4 and the R segment and part of the U5 sequence (R-U5’) of the Human T-Cell Leukemia Virus (HTLV) Type 1 Long Terminal Repeat. The EF-1α promoter exhibits a strong activity and yields long lasting expression of a transgene in vivo. The R-U5’ has been coupled to the EF-1α core promoter to enhance stability of RNA.
    SV40 pAn: The Simian Virus 40 late polyadenylation signal enables efficient cleavage and polyadenylation reactions resulting in high levels of steady-state mRNA.
    Ori pMB1 is a minimal E. coli origin of replication with the same activity as the longer Ori.
    EM2KC is a bacterial promoter that enables the constitutive expression of the antibiotic resistance gene in E. coli.
    Sh ble: The Sh ble gene from Streptoalloteichus hindustanus encodes a small protein that confers resistance to Zeocin by binding to the antibiotic."
  • Plasmid Resuspension
  • Quickly spin the tube containing the lyophilized plasmid to pellet the DNA. To obtain a plasmid solution at 1µg/µl, resuspend the DNA in 200 µl of sterile H20. Store resuspended plasmid at -20°C.
  • Selection of Bacteria with E. coli Fast-Media Zeo
  • E. coli Fast-Media Zeo is a fast and convenient way to prepare liquid and solid media for bacterial culture by using only a microwave. Fast-Media Zeo is a TB (liquid) or LB (solid) based medium with zeocin.
    Method
    1- Pour the contents of a pouch of Fast-Media into a clean borosilicate glass bottle or flask.
    2- Add 200 ml of distilled water to the flask
    3- Heat in a microwave on MEDIUM power setting (about 400Watts), until bubbles start appearing (approximately 3 minutes).Do not heat a closed container. Do not autoclave Fast-Media.
    4- Swirl gently to mix the preparation. Be careful, the bottle and media are hot, use heatproof pads or gloves and care when handling.
    5- Reheat the media for 30 seconds and gently swirl again. Repeat as necessary to completely dissolve the powder into solution. But be careful to avoid overboiling and volume loss.
    6- Let agar medium cool to 45°C before pouring plates. Let liquid media cool to 37°C before seeding bacteria.
    Note: Do not reheat solidified Fast-Media as the antibiotic will be permanently destroyed by the procedure.

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