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  • Tet-On and Tet-Off—1st generation
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Home › Products › Gene function › Tet-inducible expression systems › Tet systems legacy products › Tet-On and Tet-Off—2nd generation

Tet-inducible expression systems

  • Tet-On 3G systems
    • Tet-On 3G systems
    • Tet-On 3G—lentiviral
    • Tet-On 3G—retroviral
    • Adeno-X Tet-On 3G inducible expression system
    • Tet-On 3G cell lines
    • Tet-On 3G systems—bidirectional
    • Tet-On 3G systems—bicistronic
    • Tet-On 3G systems—EF1-alpha promoter
  • Tet systems legacy products
    • Tet-Off cell lines
    • Tet-On and Tet-Off—2nd generation
    • Tet-tTS transcriptional silencer
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Tet-On and Tet-Off systems: second generation

Tet-On and Tet-Off brands are the highest-performing and most-cited inducible mammalian expression systems. Since the orignal first generation of Tet-On and Tet-Off Systems a series of improvements to the system have resulted in three distinct generations of the technology. This page lists the remaining 2nd generation Tet-On and Tet-Off vectors (Tet-Advanced). To learn about the highest-performing 3rd generation Tet-On inducible expression systems, visit our Tet-On 3G and Tet-One pages.

Tet-On and Tet-Off brands are the highest-performing and most-cited inducible mammalian expression systems. Since the original first generation of Tet-On and Tet-Off Systems, a series of improvements to the system have resulted in three distinct generations of the technology. This page lists the remaining 2nd generation Tet-On and Tet-Off vectors (Tet-Advanced). To learn about the highest-performing 3rd generation Tet-On inducible expression systems, visit our Tet-On 3G and Tet-One pages.

First generation: Tet-On and Tet-Off vectors

The vectors from the original systems, described by the laboratories of Hermann Bujard, Manfred Gossen, and Wolfgang Hillen, were launched by Clontech (now Takara Bio USA, Inc.) in 1996. Their performance has been surpassed by two subsequent generations.

Second generation: Tet-On Advanced and Tet-Off Advanced vectors

Compared to the vectors from the original Tet-On and Tet-Off systems, our Tet-Advanced vectors have been optimized for improved expression in mammalian cells by utilizing human codon preferences and removing cryptic splice sites from the mRNA sequence of the transactivator. These enhancements lead to higher and more stable expression levels, while the three minimal VP16 transcription activation domains minimize off-target effects and reduce toxicity. The PTight promoter contains a modified TRE that both reduces basal expression and promotes tight binding to the Tet-Advanced transactivator proteins during induction to permit specific and high-level transcription of your downstream gene.

Third generation: Tet-On 3G systems

The Tet-On 3G system is the most advanced inducible expression system for mammalian cells. The transactivator is similar to that of the Tet-On Advanced system but additional mutations lead to further sensitivity to doxycycline. Moreover, sequence optimization within the PTRE3G promoter further reduces basal expression up to 15-fold compared to second-generation systems. To read more about Tet-On 3G systems, please visit the Tet-On 3G and Tet-One pages.

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Cat. # Product Size Price License Quantity Details
631034 pRetroX-Tight-Hyg Vector 20 ug Inquire for Quotation

License Statement

ID Number  
42 Use of the Tetracycline controllable expression systems (the "Tet Technology") is covered by a series of patents including U.S. Patent # 8383364, # 9181556 , European patents EP # 1954811, #2352833 and corresponding patent claims outside these regions which are proprietary to TET Systems GmbH & Co. KG. Academic research institutions are granted an automatic license with the purchase of this product to use the Tet Technology only for internal, academic research purposes, which license specifically excludes the right to sell, or otherwise transfer, the Tet Technology or its component parts to third parties. Notwithstanding the above, academic and not-for profit research institutions whose research using the Tet Technology is sponsored by for profit organizations, which shall receive ownership to any data and results stemming from the sponsored research, shall need a commercial license agreement from TET Systems in order to use the Tet Technology. In accepting this license, all users acknowledge that the Tet Technology is experimental in nature. TET Systems GmbH & Co. KG makes no warranties, express or implied or of any kind, and hereby disclaims any warranties, representations, or guarantees of any kind as to the Tet Technology, patents, or products. All others are invited to request a license from TET Systems GmbH & Co. KG prior to purchasing these reagents or using them for any purpose. Takara Bio USA, Inc. is required by its licensing agreement to submit a report of all purchasers of the Tet-controllable expression system to TET Systems.

For license information, please contact:
GSF/CEO
TET Systems GmbH & Co. KG,
Im Neuenheimer Feld 582
69120 Heidelberg
Germany
Tel: +49 6221 5880400
Fax: +49 6221 5880404
email: info@tetsystems.com
or use the electronic licensing request form via https://www.tetsystems.com/licensing/
*

pRetroX-Tight-Hyg is a retroviral vector that expresses a gene of interest from the Tet-responsive element (TRE) upon activation by either the tTA or rtTA regulatory protein. It can be used with any established Tet-On or Tet-Off cell line, or in conjunction with the regulatory plasmids from any Tet or Retro-X Tet System.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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Retroviral delivery combined with tetracycline-inducible expression

Retroviral delivery combined with tetracycline-inducible expression

Retroviral delivery combined with tetracycline-inducible expression. HeLa cells stably transduced with Retro-X Tet-Off Advanced retrovirus were subsequently infected with a Retro-X-Tight-Pur retrovirus engineered for inducible luciferase expression. Infected cells were grown in the absence (–) or presence (+) of Dox for 48 hr and assayed for luciferase activity. RLU = relative light units.

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Each Retro-X Tet-Advanced system consists of two retroviral vectors

Each Retro-X Tet-Advanced system consists of two retroviral vectors

Each Retro-X Tet-Advanced system consists of two retroviral vectors. A regulator vector (e.g., pRetroX-Tet-On Advanced) expresses an optimized tetracycline-controlled transactivator. The response vector (pRetroX-Tight-Pur) contains an improved tetracycline response element (TRE) within the PTight promoter that controls expression of your gene of interest.

631059 pTRE-Tight Vector 20 ug USD $467.00

pTRE-Tight is a cloning vector that expresses a gene of interest from the Tet-responsive element (TRE) upon activation by either the tTA or rtTA regulatory protein. It can be used with any established Tet-On or Tet-Off cell line, or in conjunction with the regulatory plasmids from any Tet, Retro-X Tet, or Lenti-X Tet Kit.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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Schematic map of the pTRE-Tight-BI expression vectors

Schematic map of the pTRE-Tight-BI expression vectors
Schematic map of the pTRE-Tight-BI expression vectors. The pTRE-Tight-BI response vectors contain the tet-responsive element (TREmod) between two identical minimal CMV promoters (PminCMV) in opposite orientations.

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631059: pTRE-Tight Vector

631059: pTRE-Tight Vector
631070 pTet-Off Advanced Vector 20 ug USD $559.00

The pTet-Off Advanced Vector is used to create stable Tet-Off Advanced cell lines as hosts for a Tet-inducible expression system. The Tet-Off Advanced protein is a modified Tet-responsive transactivator (tTA-Advanced) that binds tightly to tetracycline-responsive elements (TRE) and strongly activates transcription of a downstream gene in the absence of tetracycline (Tc) or doxycycline (Dox; a Tc derivative). As Tc or Dox is added to the culture medium, transcription from the TRE or TRE-Tight is turned off in a highly dose-dependent manner.

The Tet-Off Advanced gene is fully synthetic and has been optimized for expression and stability in mammalian cells by incorporating mammalian codon preferences and by removing cryptic splice sites from the mRNA. In addition, 3 minimal "F-type" HSV VP16 transcription activation domains provide maximal activation and reduced toxicity. The immediate early promoter of cytomegalovirus (PCMV IE) produces strong constitutive expression of Tet-Off Advanced, which accumulates to high levels. Stable Tet-Off Advanced cell lines can be generated by transfecting the plasmid and selecting for G418-resistant clones.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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Induced expression in the Tet-Off Advanced and Tet-On Advanced systems

Induced expression in the Tet-Off Advanced and Tet-On Advanced systems

Induced expression in the Tet-Off Advanced and Tet-On Advanced systems. The Tet-controlled transactivators are fusion proteins that contain a DNA-binding TetR domain joined to three minimal transcription activation domains from HSV VP16. Each transactivator has been optimized for expression in mammalian cells. In Tet-Off Advanced systems, the basal state is maintained in the presence of doxycycline (Dox), and induced by its withdrawal. Tet-On Advanced systems are activated in the presence of Dox. System induction produces high-level transcription of your gene from PTight.

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Induced luciferase expression in Tet-On Advanced and Tet-Off Advanced Expression systems

Induced luciferase expression in Tet-On Advanced and Tet-Off Advanced Expression systems

Induced luciferase expression in Tet-On Advanced and Tet-Off Advanced Expression systems. In the absence of Dox, basal expression was undetectable in Tet-On Advanced cells, whereas fully induced expression in the presence of Dox was very high. Tet-Off Advanced cells show the opposite response to Dox, with extremely high fold-induction, and undetectable basal expression in the presence of Dox.

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Tet-On Advanced systems are more sensitive to doxycycline than the original Tet-On systems

Tet-On Advanced systems are more sensitive to doxycycline than the original Tet-On systems

Tet-On Advanced systems are more sensitive to doxycycline than the original Tet-On systems. HEK 293 Tet-On and Tet-On Advanced cell lines were transiently transfected with TRE-luciferase vectors and treated with increasing concentrations of Dox. The Tet-On Advanced protein is tenfold more sensitive to Dox.

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631070: pTet-Off Advanced Vector

631070: pTet-Off Advanced Vector
631112 Tet-On® Advanced IRES Fluorescent Vector Set 20 ug Inquire for Quotation *

The Tet-On Advanced IRES Fluorescent Vector Set allows you to establish a tightly regulated and highly responsive inducible system for simultaneous coexpression of your gene of interest and a fluorescent protein marker. The system is turned on by adding doxycycline to the culture medium. The pTet-DualON Vector expresses the Tet-ON Advanced transactivator along with the green fluorescent protein, ZsGreen1, to allow you to sort for high-expression of the transactivator in target cells. With pTRE-Dual2, Tet-inducible coexpression of your gene of interest and the red fluorescent protein, mCherry, is controlled by the TRE-based promoter, PTight. Coexpression of two genes from a single transcription unit in each of these vectors is made possible by an internal ribosome entry site (IRES2) that separates the two coding sequences. pTRE-Dual2-Luc is an inducible control vector that coexpresses mCherry and luciferase. To select stable cell lines, the vectors must be cotransfected with one of the provided linear selection markers.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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Tetracycline-inducible expression of cytotoxic proteins

Tetracycline-inducible expression of cytotoxic proteins

Tetracycline-inducible expression of cytotoxic proteins. The Tet-On Advanced system was used to generate a double-stable HEK 293 cell line capable of induced expression of procaspase-8, a protein that plays a central role in apoptosis. Cells were treated for 8 hr with or without Dox and visualized by phase contrast microscopy. Due to the tight control of the caspase-8 transgene in the absence of Dox, the cells in Panel B appear very similar to the parental line (Panel A). Apoptosis was only apparent after treatment of the cell line with Dox to induce expression of procaspase 8 (Panel C).

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Monitor inducible expression using mCherry

Monitor inducible expression using mCherry

Monitor inducible expression using mCherry. pTRE-Dual vectors are supplied with the Tet-On Advanced IRES Fluorescent Vector Set (Cat. # 631112) and Tet-Off Advanced IRES Fluorescent Vector Set (Cat. # 631113) and provide simultaneous inducible expression of your transgene and our mCherry fluorescent protein from an IRES bicistronic mRNA. When your gene is turned on, so is mCherry, and your cells fluoresce red.

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IRES fluorescent vector sets (Cat. # 631112, 631113)

IRES fluorescent vector sets (Cat. # 631112, 631113)

IRES fluorescent vector sets (Cat. # 631112, 631113) . The Tet-Dual transactivator expression vectors constitutively express either the Tet-On Advanced or Tet-Off Advanced protein, and the fluorescent protein, ZsGreen1 (Panel A). pTRE-Dual2 is a Tet-regulated inducible expression vector that coexpresses mCherry and a second gene that is cloned in the multiple cloning site (MCS) (Panel B). pTRE-Dual1 (Cat. # 631114) coexpresses two user-defined genes.

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IRES fluorescent vector sets (Cat. # 631112, 631113)

IRES fluorescent vector sets (Cat. # 631112, 631113)

IRES fluorescent vector sets (Cat. # 631112, 631113). A 14-day old, puromycin-resistant colony of HEK 293 cells cotransfected with pTET-DualOFF, pTRE-Dual2-luciferase, and a linear puromycin selection marker exhibits dual fluorescent colors (Panel A). The clone expresses Tet-Off Advanced protein and is green due to coexpressed ZsGreen1. In the absence of Dox, the cells are also red because Tet-Off Advanced protein activates the coexpression of luciferase and mCherry. The inducible expression of luciferase activity in this clone was measured and is shown in Panel B..

631113 Tet-Off® Advanced IRES Fluorescent Vector Set 20 ug Inquire for Quotation *

The Tet-Off Advanced IRES Fluorescent Vector Set allows you to establish a tightly regulated and highly responsive inducible system for simultaneous coexpression of your gene of interest and a fluorescent protein marker. The system is turned off by adding doxycycline to the culture medium. The pTet-DualOFF Vector expresses the Tet-OFF Advanced transactivator along with the green fluorescent protein, ZsGreen1, to allow you to sort for high-expression of the transactivator in target cells. With pTRE-Dual2, Tet-inducible coexpression of your gene of interest and the red fluorescent protein, mCherry, is controlled by the TRE-based promoter, PTight. Coexpression of two genes from a single transcription unit in each of these vectors is made possible by an internal ribosome entry site (IRES2) that separates the two coding sequences. pTRE-Dual2-Luc is an inducible control vector that coexpresses mCherry and luciferase. To select stable cell lines, the vectors must be cotransfected with one of the provided linear selection markers.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

Documents Components Image Data

Back

Monitor inducible expression using mCherry

Monitor inducible expression using mCherry

Monitor inducible expression using mCherry. pTRE-Dual vectors are supplied with the Tet-On Advanced IRES Fluorescent Vector Set (Cat. # 631112) and Tet-Off Advanced IRES Fluorescent Vector Set (Cat. # 631113) and provide simultaneous inducible expression of your transgene and our mCherry fluorescent protein from an IRES bicistronic mRNA. When your gene is turned on, so is mCherry, and your cells fluoresce red.

Back

IRES fluorescent vector sets (Cat. # 631112, 631113)

IRES fluorescent vector sets (Cat. # 631112, 631113)

IRES fluorescent vector sets (Cat. # 631112, 631113) . The Tet-Dual transactivator expression vectors constitutively express either the Tet-On Advanced or Tet-Off Advanced protein, and the fluorescent protein, ZsGreen1 (Panel A). pTRE-Dual2 is a Tet-regulated inducible expression vector that coexpresses mCherry and a second gene that is cloned in the multiple cloning site (MCS) (Panel B). pTRE-Dual1 (Cat. # 631114) coexpresses two user-defined genes.

Back

IRES fluorescent vector sets (Cat. # 631112, 631113)

IRES fluorescent vector sets (Cat. # 631112, 631113)

IRES fluorescent vector sets (Cat. # 631112, 631113). A 14-day old, puromycin-resistant colony of HEK 293 cells cotransfected with pTET-DualOFF, pTRE-Dual2-luciferase, and a linear puromycin selection marker exhibits dual fluorescent colors (Panel A). The clone expresses Tet-Off Advanced protein and is green due to coexpressed ZsGreen1. In the absence of Dox, the cells are also red because Tet-Off Advanced protein activates the coexpression of luciferase and mCherry. The inducible expression of luciferase activity in this clone was measured and is shown in Panel B..

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631113: Tet-Off Advanced IRES Fluorescent Vector Set

631113: Tet-Off Advanced IRES Fluorescent Vector Set
631115 pTRE-Cycle1 Vector 20 ug Inquire for Quotation

License Statement

ID Number  
57 This product is covered by U.S. Patent Nos. 8,173,792 and 9,487,787.
42 Use of the Tetracycline controllable expression systems (the "Tet Technology") is covered by a series of patents including U.S. Patent # 8383364, # 9181556 , European patents EP # 1954811, #2352833 and corresponding patent claims outside these regions which are proprietary to TET Systems GmbH & Co. KG. Academic research institutions are granted an automatic license with the purchase of this product to use the Tet Technology only for internal, academic research purposes, which license specifically excludes the right to sell, or otherwise transfer, the Tet Technology or its component parts to third parties. Notwithstanding the above, academic and not-for profit research institutions whose research using the Tet Technology is sponsored by for profit organizations, which shall receive ownership to any data and results stemming from the sponsored research, shall need a commercial license agreement from TET Systems in order to use the Tet Technology. In accepting this license, all users acknowledge that the Tet Technology is experimental in nature. TET Systems GmbH & Co. KG makes no warranties, express or implied or of any kind, and hereby disclaims any warranties, representations, or guarantees of any kind as to the Tet Technology, patents, or products. All others are invited to request a license from TET Systems GmbH & Co. KG prior to purchasing these reagents or using them for any purpose. Takara Bio USA, Inc. is required by its licensing agreement to submit a report of all purchasers of the Tet-controllable expression system to TET Systems.

For license information, please contact:
GSF/CEO
TET Systems GmbH & Co. KG,
Im Neuenheimer Feld 582
69120 Heidelberg
Germany
Tel: +49 6221 5880400
Fax: +49 6221 5880404
email: info@tetsystems.com
or use the electronic licensing request form via https://www.tetsystems.com/licensing/
*

pTRE-Cycle1 is a bidirectional, Tet-inducible expression vector that allows you to reversibly regulate (i.e., cycle) the amount of a protein of interest in mammalian cells while coexpressing a second protein that is not cycled. Expression of both proteins is tightly regulated by the bidirectional, TRE-based promoter, PTight-Bi.Expression of the first gene of interest is controlled by an additional mechanism, since the resulting protein is fused to an N-terminal ProteoTunerTM destabilization domain (DD), which causes rapid proteasomal degradation of any protein to which it is fused. The degradation process can be reversed repeatedly by adding the stabilizing ligand Shield1 and then removing it from the culture medium. The second gene of interest, which is cloned into a separate multiple cloning site, will be coexpressed with the tagged protein, but will not acquire a DD-tag, and thus is subject only to Tet-based regulation. The vector is intended for use with any Tet-On or Tet-Off Advanced Expression System. To select stable cell lines, the vector must be cotransfected with one of the provided linear selection markers.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

Documents Components Image Data

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Inducible expression of two proteins of interest, one with a DD tag and one induced by tetracycline

Inducible expression of two proteins of interest, one with a DD tag and one induced by tetracycline

Inducible expression of two proteins of interest, one with a DD tag and one induced by tetracycline. pTRE-Cycle2 and pTRE-Cycle3 allow you to inducibly coexpress a red or green fluorescent protein along with your DD-tagged protein of interest.

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Independent inducible expression of two proteins in HEK 293 cells is shown for red and green fluorescent proteins and also for Sox2 and Oct4

Independent inducible expression of two proteins in HEK 293 cells is shown for red and green fluorescent proteins and also for Sox2 and Oct4

Independent inducible expression of two proteins in HEK 293 cells is shown for red and green fluorescent proteins (Panel A) and also for Sox2 and Oct4 (Panel B).

631116 pTRE-Cycle2 Vector 20 ug Inquire for Quotation

License Statement

ID Number  
57 This product is covered by U.S. Patent Nos. 8,173,792 and 9,487,787.
42 Use of the Tetracycline controllable expression systems (the "Tet Technology") is covered by a series of patents including U.S. Patent # 8383364, # 9181556 , European patents EP # 1954811, #2352833 and corresponding patent claims outside these regions which are proprietary to TET Systems GmbH & Co. KG. Academic research institutions are granted an automatic license with the purchase of this product to use the Tet Technology only for internal, academic research purposes, which license specifically excludes the right to sell, or otherwise transfer, the Tet Technology or its component parts to third parties. Notwithstanding the above, academic and not-for profit research institutions whose research using the Tet Technology is sponsored by for profit organizations, which shall receive ownership to any data and results stemming from the sponsored research, shall need a commercial license agreement from TET Systems in order to use the Tet Technology. In accepting this license, all users acknowledge that the Tet Technology is experimental in nature. TET Systems GmbH & Co. KG makes no warranties, express or implied or of any kind, and hereby disclaims any warranties, representations, or guarantees of any kind as to the Tet Technology, patents, or products. All others are invited to request a license from TET Systems GmbH & Co. KG prior to purchasing these reagents or using them for any purpose. Takara Bio USA, Inc. is required by its licensing agreement to submit a report of all purchasers of the Tet-controllable expression system to TET Systems.

For license information, please contact:
GSF/CEO
TET Systems GmbH & Co. KG,
Im Neuenheimer Feld 582
69120 Heidelberg
Germany
Tel: +49 6221 5880400
Fax: +49 6221 5880404
email: info@tetsystems.com
or use the electronic licensing request form via https://www.tetsystems.com/licensing/
*

pTRE-Cycle2 is a bidirectional, Tet-inducible expression vector that allows you to reversibly regulate (i.e., cycle) the amount of a protein of interest in mammalian cells while coexpressing the red fluorescent protein mCherry. Expression of both proteins is tightly regulated by the bidirectional, TRE-based promoter, PTight-Bi. Expression of the gene of interest is controlled by an additional mechanism, since the resulting protein is fused to an N-terminal ProteoTuner destabilization domain (DD), which causes rapid proteasomal degradation of any protein to which it is fused. The degradation process can be reversed repeatedly by adding the stabilizing ligand Shield1 and then removing it from the culture medium. mCherry is coexpressed with the tagged protein, but does not contain a DD-tag, and thus is subject only to Tet-based regulation. The vector is intended for use with any Tet-On or Tet-Off Advanced Expression System. To select stable cell lines, the vector must be cotransfected with one of the provided linear selection markers.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

Documents Components Image Data

Back

Inducible expression of two proteins of interest, one with a DD tag and one induced by tetracycline

Inducible expression of two proteins of interest, one with a DD tag and one induced by tetracycline

Inducible expression of two proteins of interest, one with a DD tag and one induced by tetracycline. pTRE-Cycle2 and pTRE-Cycle3 allow you to inducibly coexpress a red or green fluorescent protein along with your DD-tagged protein of interest.

Back

Independent inducible expression of two proteins in HEK 293 cells is shown for red and green fluorescent proteins and also for Sox2 and Oct4

Independent inducible expression of two proteins in HEK 293 cells is shown for red and green fluorescent proteins and also for Sox2 and Oct4

Independent inducible expression of two proteins in HEK 293 cells is shown for red and green fluorescent proteins (Panel A) and also for Sox2 and Oct4 (Panel B).

631117 pTRE-Cycle3 Vector 20 ug Inquire for Quotation

License Statement

ID Number  
42 Use of the Tetracycline controllable expression systems (the "Tet Technology") is covered by a series of patents including U.S. Patent # 8383364, # 9181556 , European patents EP # 1954811, #2352833 and corresponding patent claims outside these regions which are proprietary to TET Systems GmbH & Co. KG. Academic research institutions are granted an automatic license with the purchase of this product to use the Tet Technology only for internal, academic research purposes, which license specifically excludes the right to sell, or otherwise transfer, the Tet Technology or its component parts to third parties. Notwithstanding the above, academic and not-for profit research institutions whose research using the Tet Technology is sponsored by for profit organizations, which shall receive ownership to any data and results stemming from the sponsored research, shall need a commercial license agreement from TET Systems in order to use the Tet Technology. In accepting this license, all users acknowledge that the Tet Technology is experimental in nature. TET Systems GmbH & Co. KG makes no warranties, express or implied or of any kind, and hereby disclaims any warranties, representations, or guarantees of any kind as to the Tet Technology, patents, or products. All others are invited to request a license from TET Systems GmbH & Co. KG prior to purchasing these reagents or using them for any purpose. Takara Bio USA, Inc. is required by its licensing agreement to submit a report of all purchasers of the Tet-controllable expression system to TET Systems.

For license information, please contact:
GSF/CEO
TET Systems GmbH & Co. KG,
Im Neuenheimer Feld 582
69120 Heidelberg
Germany
Tel: +49 6221 5880400
Fax: +49 6221 5880404
email: info@tetsystems.com
or use the electronic licensing request form via https://www.tetsystems.com/licensing/
57 This product is covered by U.S. Patent Nos. 8,173,792 and 9,487,787.
*

pTRE-Cycle3 is a bidirectional, Tet-inducible expression vector that allows you to reversibly regulate (i.e., cycle) the amount of a protein of interest in mammalian cells while coexpressing the fluorescent protein ZsGreen1. Expression of both proteins is tightly regulated by the bidirectional, TRE-based promoter, PTight-Bi.Expression of the gene of interest is controlled by an additional mechanism, since the resulting protein is fused to an N-terminal ProteoTuner destabilization domain (DD), which causes rapid proteasomal degradation of any protein to which it is fused. The degradation process can be reversed repeatedly by adding the stabilizing ligand Shield1 and then removing it from the culture medium. ZsGreen1 is coexpressed with the tagged protein, but does not contain a DD-tag, and thus is subject only to Tet-based regulation. The vector is intended for use with any Tet-On or Tet-Off Advanced Expression System. To select stable cell lines, the vector must be cotransfected with one of the provided linear selection markers.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

Documents Image Data

Back

Inducible expression of two proteins of interest, one with a DD tag and one induced by tetracycline

Inducible expression of two proteins of interest, one with a DD tag and one induced by tetracycline

Inducible expression of two proteins of interest, one with a DD tag and one induced by tetracycline. pTRE-Cycle2 and pTRE-Cycle3 allow you to inducibly coexpress a red or green fluorescent protein along with your DD-tagged protein of interest.

Back

Independent inducible expression of two proteins in HEK 293 cells is shown for red and green fluorescent proteins and also for Sox2 and Oct4

Independent inducible expression of two proteins in HEK 293 cells is shown for red and green fluorescent proteins and also for Sox2 and Oct4

Independent inducible expression of two proteins in HEK 293 cells is shown for red and green fluorescent proteins (Panel A) and also for Sox2 and Oct4 (Panel B).

632105 Retro-X™ Tet-Off® Advanced Inducible Expression System Each Inquire for Quotation

License Statement

ID Number  
8 For Research Use Only, Not for Use in Humans.
*

The Retro-X Tet-Off Advanced Inducible Expression System is a tetracycline-inducible retroviral gene expression system, consisting of retroviral versions of the Tet-Off Advanced regulatory and response vectors. Retroviruses produced from these vectors can be used to generate stable mammalian cell lines that yield high-level, inducible expression of cloned genes under the control of doxycycline. The kit also includes a control vector, a CalPhos Mammalian Transfection Kit, and Tet System Approved FBS.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

Documents Components Image Data

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Retroviral delivery combined with tetracycline-inducible expression

Retroviral delivery combined with tetracycline-inducible expression

Retroviral delivery combined with tetracycline-inducible expression. HeLa cells stably transduced with Retro-X Tet-Off Advanced retrovirus were subsequently infected with a Retro-X-Tight-Pur retrovirus engineered for inducible luciferase expression. Infected cells were grown in the absence (–) or presence (+) of Dox for 48 hr and assayed for luciferase activity. RLU = relative light units.

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Each Retro-X Tet-Advanced system consists of two retroviral vectors

Each Retro-X Tet-Advanced system consists of two retroviral vectors

Each Retro-X Tet-Advanced system consists of two retroviral vectors. A regulator vector (e.g., pRetroX-Tet-On Advanced) expresses an optimized tetracycline-controlled transactivator. The response vector (pRetroX-Tight-Pur) contains an improved tetracycline response element (TRE) within the PTight promoter that controls expression of your gene of interest.

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Effects of supernatant ratios on retrovirus-mediated tetracycline inducible expression

Effects of supernatant ratios on retrovirus-mediated tetracycline inducible expression
Effects of supernatant ratios on retrovirus-mediated tetracycline inducible expression. Supernatants containing either Retro-X Tet-Off-Advanced retrovirus (regulator) or Retro-X Tight-Pur-Luciferase (response) were mixed at the indicated ratios and used to infect HeLa cells. Infected cells were grown in the absence (–) or presence (+) of Dox for 48 hr and assayed for luciferase activity. The ratios that favored the response vector led to higher overall expression, while the ratio that favored the regulator vector yielded the lowest basal expression. RLU = relative light units.
632163 Lenti-X™ Tet-Off® Advanced Inducible Expression System Each Inquire for Quotation

License Statement

ID Number  
63 Use of this product is covered by one or more of the following U.S. Patent Nos. and corresponding patent claims outside the U.S.: 8,562,966, 8,557,231. This product is intended for research purposes only. It may not be used for (i) any human or veterinary use, including without limitation therapeutic and prophylactic use, (ii) any clinical use, including without limitation diagnostic use, (iii) screening of chemical and/or biological compounds for the identification of pharmaceutically active agents (including but not limited to screening of small molecules), target validation, preclinical testing services, or drug development. Any use of this product for any of the above mentioned purposes requires a license from the Massachusetts Institute of Technology.
89
This Product is protected by one or more patents from the family consisting of: US9945850 and any corresponding patents, divisionals, continuations, patent applications and foreign filings sharing common priority with the same family.
*

The Lenti-X Tet-Off Advanced Inducible Expression System includes the Lenti-X Tet-Off Advanced Vector Set, Lenti-X Packaging Single Shots (VSV-G), and a sample of Lenti-X GoStix. These materials allow you to produce exceptionally high titers of recombinant, VSV-G pseudotyped lentiviruses for the purpose of establishing an inducible expression system for your gene of interest (GOI) in both dividing and non-dividing cell types. The system provides enough reagents for 16 packaging reactions.

LVX-Tet-Off Advanced (regulator) lentivirus expresses the tetracycline-dependent transcriptional activator, tTA-Advanced. In the absence of doxycycline (Dox), tTA-Advanced specifically activates high-level transcription from the PTight inducible promoter that controls expression of your GOI in your customized LVX-Tight-Puro-GOI (response) lentivirus. In cells cotransduced by both lentiviruses, your GOI will be expressed to high levels in the absence of Dox. The system is maintained in the inactive "off" state in the presence of Dox.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

Documents Components Image Data Resources

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Protocol schematic for creating a tetracycline-inducible lentivirus system

Protocol schematic for creating a tetracycline-inducible lentivirus system

Protocol schematic for creating a tetracycline-inducible lentivirus system. Use the Lenti-X HTX Packaging System and 293T cells to generate high-titer lentiviral supernatants from the pLVX-Tet-On Advanced Vector, and from the pLVX-Tight-Puro Vector containing your gene of interest. Simultaneously coinfect cultures of your target cells with the two lentiviruses (~8 hr). Then, after culturing for an additional 48–72 hr (+/– Dox), harvest the cells for analysis. These same procedures also apply to the Lenti-X Tet-Off Advanced systems, but the effects of Dox are reversed.

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Induced expression in the Tet-Off Advanced and Tet-On Advanced systems

Induced expression in the Tet-Off Advanced and Tet-On Advanced systems

Induced expression in the Tet-Off Advanced and Tet-On Advanced systems. The Tet-controlled transactivators are fusion proteins that contain a DNA-binding TetR domain joined to three minimal transcription activation domains from HSV VP16. Each transactivator has been optimized for expression in mammalian cells. In Tet-Off Advanced systems, the basal state is maintained in the presence of doxycycline (Dox), and induced by its withdrawal. Tet-On Advanced systems are activated in the presence of Dox. System induction produces high-level transcription of your gene from PTight.

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632163: Lenti-X Tet-Off Advanced Inducible Expression System

632163: Lenti-X Tet-Off Advanced Inducible Expression System

*You must be logged in to a Purchasing Account in order 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 licensing@takarabio.com.

Overview

If you are upgrading your system or purchasing a Tet system for the first time, we recommend choosing a Tet-On 3G system or a Tet-One system.

More 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.

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Takara Bio USA, Inc. provides kits, reagents, instruments, and services that help researchers explore questions about gene discovery, regulation, and function. As a member of the Takara Bio Group, Takara Bio USA is part of a company that holds a leadership position in the global market and is committed to improving the human condition through biotechnology. Our mission is to develop high-quality innovative tools and services to accelerate discovery.

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Takara Bio USA, Inc. provides kits, reagents, instruments, and services that help researchers explore questions about gene discovery, regulation, and function. As a member of the Takara Bio Group, Takara Bio USA is part of a company that holds a leadership position in the global market and is committed to improving the human condition through biotechnology. Our mission is to develop high-quality innovative tools and services to accelerate discovery.

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  • SARS-CoV-2 pseudovirus
  • Human ACE2 stable cell line
  • Viral RNA isolation
  • Viral and host sequencing
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  • CRISPR screening
  • Drug discovery
  • Immune profiling
  • Publications
  • Next-generation sequencing
  • Spatial omics
  • RNA-seq
  • DNA-seq
  • Single-cell NGS automation
  • Reproductive health
  • Bioinformatics tools
  • Immune profiling
  • Real-time PCR
  • Great value master mixes
  • Signature enzymes
  • High-throughput real-time PCR solutions
  • Detection assays
  • References, standards, and buffers
  • Stem cell research
  • Media, differentiation kits, and matrices
  • Stem cells and stem cell-derived cells
  • mRNA and cDNA synthesis
  • In vitro transcription
  • cDNA synthesis kits
  • Reverse transcriptases
  • RACE kits
  • Purified cDNA & genomic DNA
  • Purified total RNA and mRNA
  • PCR
  • Most popular polymerases
  • High-yield PCR
  • High-fidelity PCR
  • GC rich PCR
  • PCR master mixes
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  • In-Fusion seamless cloning
  • Competent cells
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