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Inducible Systems

Products >  Inducible_Systems >  Tetracycline-Inducible_Expression >  Lentiviral_Tet-Express

Tet-Express, Lentiviral Format

Tet-Express Inducible Expression Systems are a faster, simpler adaptation of our powerful, tightly-regulated Tet-On/Tet-Off expression systems. To induce expression, simply apply a few microliters of Tet-Express to the culture medium of cells that have been transduced with one of our pLVX-TRE3G lentiviral vectors. Choose between several systems, each of which are supplied with a high-performing lentiviral vector and complete 4th generation lentiviral packaging system.

What is Tet-Express?

Tet-Express is a version of Clontech’s Tet-Off Advanced transactivator protein that has been modified and optimized for self-transduction, i.e., it has the ability to transport itself across cell membranes into the nucleus via protein transduction pathways. Since Tet-Express binds and activates expression in the absence of tetracyclines, doxycycline is not required for gene activation. An Intensifier Reagent included with each vial of Tet-Express increases protein transduction efficiency.

What is Included in the Lentiviral Tet-Express Kits?

All systems are complete provided with a vial of Tet-Express and our 4th generation lentiviral packaging system:

  • Tet-Express (includes Tet-Express Transactivator and Intensifier Reagent)
  • A choice of response vector (either pLVX-TRE3G, pLVX-TRE3G-IRES, pLVX-TRE3G-mCherry, or pLVX-TRE3G-ZsGreen1)
  • pLVX-TRE3G-Luc Control Vector
  • Lenti-X HTX Packaging System (Cat. No. 631247)
    • Lenti-X HTX Packaging Mix 2 (Cat. No. 631260; not sold separately)
    • Xfect Transfection Reagent (Cat. No. 631317)
    • Tet System Approved FBS, US-Sourced (Cat. No. 631105)
    • Lenti-X GoStix (Sample)

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  • Tetracycline inducible expression

Additional Product Information

Please see the product's Certificate of Analysis for information about storage conditions, product components, and technical specifications. Please see the Kit Components List to determine kit components. Certificates of Analysis and Kit Components Lists are located under the Documents tab.

Cat. # Product Contents Size Price License Units Select
631177 Tet-Express™ 25 Rxns $229.00 License Statements *
631178 Tet-Express™ 100 Rxns $676.00 License Statements *
631189 Lenti-X™ Tet-Express™ Inducible Expression System Each $1,474.00 License Statements *
631355 Lenti-X™ Tet-Express™ Inducible Expression System (with mCherry) Each $1,474.00 License Statements *
631356 Lenti-X™ Tet-Express™ Inducible Expression System (with ZsGreen1) Each $1,474.00 License Statements *
631357 Lenti-X™ Tet-Express™ Inducible Expression System (Bicistronic Version) Each $1,474.00 License Statements *
* You must log in if you would like to purchase these products online, since the purchase of these products may be restricted depending on your account type. Researchers at not-for-profit accounts receive a limited use license with their purchase of the product. Researchers at for-profit accounts must obtain a license prior to purchase. For details please contact


Required Products
Cat. # Product Contents Size Price # of Units Select
631106 Tet System Approved FBS 500 mL $580.00
631306 Puromycin 100 mg $180.00



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