Tet-On 3G tetracycline-inducible expression systems
Tet-On 3G tetracycline-inducible gene expression systems are the third generation of the most powerful, versatile, and widely cited inducible mammalian expression systems available. The Tet-On 3G system offers a significant improvement over Tet-On and Tet-On Advanced systems with significantly reduced basal expression and increased sensitivity to doxycycline, a tetracycline analogue.
Tet-On 3G tetracycline-inducible gene expression systems are the third generation of the most powerful, versatile, and widely cited inducible mammalian expression systems available. The Tet-On 3G system offers a significant improvement over Tet-On and Tet-On Advanced systems with significantly reduced basal expression and increased sensitivity to doxycycline, a tetracycline analogue.
Learn more about the high sensitivity of the transactivator, and the low background from the tight promoter in the Tet system learning center.
Choice of Tet-On 3G vector formats
There is a range of available Tet-On 3G vector formats:
- Tet-One systems (listed elsewhere) provide a complete inducible expression system on a single vector.
- The Tet-On 3G Inducible Expression System (EF1alpha Version), our EF1-alpha promoter version of the Tet-On 3G system, provides consistent long-term expression of the Tet-On 3G transactivator, even in cell types known for their tendency to silence a CMV promoter over time, such as hematopoietic cells and stem cells.
- Bidirectional promoter versions of the system allow you to induce expression of two genes from the same promoter—either two transgenes of your choosing, or a single transgene and a fluorescent protein. If your cells turn red or green after adding Dox, this confirms that your gene has been turned on and that you have selected a high-performing inducible clone.
- Using IRES technology, we've married very tight gene expression control to a bright red fluorescent protein (mCherry) in the Tet-On 3G Inducible Expression System (with mCherry), and a bright green fluorescent protein (ZsGreen1) in the Tet-On 3G Inducible Expression System (with ZsGreen1).
- Retroviral and lentiviral formats include the PTRE3GV promoter, which is optimized for use in retroviral and lentiviral vectors. They are supplied with complete viral packaging systems.
Use tetracycline-approved serum for optimal results
With the greatly increased sensitivity of the Tet-On 3G system, it is more important than ever that the serum you use for your studies is guaranteed to be tetracycline-free. Only Takara Bio performs actual inducibility tests on a sensitive Tet-inducible cell line in order to provide an absolute guarantee that our serum will not affect basal expression in your Tet-On 3G experiments. Each Tet-On 3G system is supplied with 50 ml of our premium Tet System Approved FBS.
Overview
- Lowest background and highest sensitivity
- Highest fold induction
- 14 kit combinations—click here for available options
- Monitor induced expression using fluorescent proteins and a bidirectional promoter
- Ready-made Tet-On 3G cell lines cut your time in half
- Retroviral (Retro-X), lentiviral (Lenti-X) and adenoviral (Adeno-X) formats are available
More Information
Applications
- Inducible expression in mammalian cells
- Inducible expression in stem cells and hematopoietic cells (EF1-alpha promoter version)
- Co-inducible expression of two genes of interest (bicistronic version)
- Co-express a fluorescent protein (mCherry and ZsGreen1 versions)
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.
Tighly controlled expression system that is as easy to use as any constitutive system
Until now, the best inducible mammalian expression systems have all required a two-vector format. Tet-One inducible expression systems are the only commercially available single-vector systems that can deliver a >10,000-fold difference in expression levels between induced and uninduced states.
Tet-One technology overview All inducible systemsTakara Bio USA, Inc.
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