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We narrowed to 22 results for: tet off

Showing: 1 - 22 of 22 results
  1. Plasmids 101: Repressible Promoters

    Type
    Blog Post
    Published
    Dec. 20, 2022, 2:15 p.m.
    ...2nd generation Tet-Off vectors (Tet-Advanced)” are the most recent variants of the Tet-Off system.  For ...promoters Tet-Off In its native context, the tetracycline repressor (TetR) can bind to the tetracycline operator...gene-function/tet-inducible-expression-systems/tet-systems-legacy-products/tet-on-and-tet-off-2nd-generation...transcription. In the presence of tetracycline (Tet), TetR preferentially binds Tet over the TetO elements, allowing...10.1101/gad.2.6.718. PMID: 2843425.Takara Bio. Tet-On and Tet-Off systems: Second generation. https://www.takarabio.com... post. In the past 30 years since the original Tet-Off system was described by Gossen and Bujard, both... Bujard created the tetracycline-controlled transactivator (tTA). They fused TetR with the transcriptional...
  2. Plasmids 101: The protein expression toolbox

    Type
    Blog Post
    Published
    Feb. 16, 2023, 7:05 p.m.
    ...come in two varieties: tet-on and tet-off. As the names imply, tet-off turns off constitutively expressed... Fig. 2 Tetracycline on/off promoters and modes of action Check out Addgene's Lentiviral Tet-on and AAVS1...options together. Turn it off Turn it off forever If you want to turn off protein expression, you are...of control. Tet promoters Tetracycline-dependent promoters are engineered by placing tet response elements...proteins while tet-on turns on constitutively silenced proteins. Addition of tetracycline or one of its...by titration with different amounts of tetracycline. Tetracycline regulation is reversible (when the drug...Turn it on? Turn it off? Turn it down, but not forever? You don’t need to resort to the force to control...
  3. Quick Guide to All Things Lentivirus

    Type
    Blog Post
    Published
    March 21, 2017, 2:30 p.m.
    ...is the tetracycline (Tet)-regulated system. You can choose either the Tet-off system or the Tet-on system...system. In the Tet-off system a Tet-response element (TRE) is placed upstream of the promoter in your transfer...expression kinetics as compared to the Tet-off system. One drawback of the Tet system is that it often requires... In the absence of tetracycline or a derivative such as Doxycycline (Dox), the Tet-controlled transactivator...repress transgene expression. In contrast, in the Tet-on system, tTA has been modified (and renamed rtTA...containing the gene of interest (pTet-IRES-EGFP, pPRIME-Tet-GFP-FF3) and one with either tTA or rtTA (FUW-M2rtTA...
  4. AAVs CREATed for Gene Delivery to the CNS and PNS

    Type
    Blog Post
    Published
    Sept. 28, 2017, 2:01 p.m.
    ...proteins under the control of an inducer, i.e. tet-off transactivator (tTA), is injected at a high dose...labeled. Part 2: An AAV expressing the inducer (i.e. tet-off transactivator) is co-injected. The dose of this...
  5. New Viral Vectors - Summer 2024

    Type
    Blog Post
    Published
    July 9, 2024, 1:15 p.m.
    ... promoter. Use this for doxycycline inducible (tet-off) gene expression! We've also added AAV1 and AAV5...
  6. Hot Plasmids: February 2026

    Type
    Blog Post
    Published
    Feb. 17, 2026, 2:15 p.m.
    ... or stably transfected, comes in either a Tet-On or Tet-Off format, and did not alter cell viability or...design models, to balance on-target activity with off-target effects to select only the most efficient ...33024-2 Drepanos, L. M., et al. (2025). Balancing off-target and on-target considerations for optimized...
  7. Plasmids 101: Inducible Promoters

    Type
    Blog Post
    Published
    Jan. 18, 2018, 2:34 p.m.
    ...inducible promoters. The positive inducible tetracycline ON (Tet-On) system, a versatile tool developed for...reverse tetracycline-controlled transactivator) is normally inactive and cannot bind the tetracycline response...Addgene.org: Inducible Promoters for Bacteria Tetracycline (Tet) Inducible Systems at Addgene Cre-lox Guide...inducible promoters, which can be switched from an OFF to an ON state, and how you might use these in your...positive or negative control. Positive inducible In the OFF state, the promoter is inactive because the activator...initiating transcription.     Negative inducible In the OFF state, the promoter is inactive because a bound repressor...response elements (TRE) in a promoter. Tetracycline and its derivatives serve as inducing agents to allow...
  8. Simple CRISPR-based Epigenetic Editing: dCas9-directed DNA Demethylation

    Type
    Blog Post
    Published
    Dec. 14, 2021, 2:15 p.m.
    ...before. But other enzymatic fusions, such as dCas9-TET, can, like the iron ball-and-chain that they resemble...there are a number of drawbacks to this approach: TET proteins are not demethylases; they are dioxygenases...dCas9 targeting (Galonska 2018). This means that off-target loci – in neighboring chromatin or throughout...Szyf 2021, Charlton et al. 2020). Most importantly, TET proteins affect transcription independent of their...2018, Kaas et al. 2013). Figure 2: CRISPR TET-based epigenetic editing. In reality, editing your...demethylation can be achieved by dCas9 alone, without TET (or any demethylase) fusion. This may seem counterintuitive...demethylation without the confounds inherent to dCas9-TET, allowing one to study the causal relationship between...
  9. Plasmids 101: E. coli Strains for Protein Expression

    Type
    Blog Post
    Published
    Feb. 10, 2015, 3:06 p.m.
    ...ompT gal sulA11 R(mcr-73::miniTn10--TetS)2 [dcm] R(zgb-210::Tn10--TetS) General protein expression  m15...not recommended for toxic proteins BL21-A1 Tetracycline Arabinose-inducible expression of T7 RNAP; IPTG...T7RNAP-tetA General protein expression  BLR (DE3) Tetracycline RecA-deficient; best for plasmids with repetative...hsdSB (rB- mB-) gal dcm (DE3) Δ(srl-recA)306::Tn10 (TetR) Expression of unstable proteins  HMS174 (DE3...proteins Origami2 (DE3)** Streptomycin and Tetracycline Contains highly active thioredoxin reductase...′[lac+ lacIq pro] (DE3) gor522::Tn10 trxB (StrR, TetR) Expression of insoluble proteins  Rosetta2 (...Changing media is tricky, because there can be a trade-off between growth rate and protein quality. For many...
  10. Plasmids 101: The Promoter Region – Let's Go!

    Type
    Blog Post
    Published
    April 3, 2014, 8:05 p.m.
    ... several tetracycline operators. Transcription can be turned on or off depending on what tet transactivator...development or there may be ways to turn them on or off at will with a chemical, heat, or light. In the cell...splice acceptor. TRE General expression mRNA Tetracycline response element promoter Inducible with Tetracyline.... coli tryptophan operon Repressible Gets turned off with high levels of cellular tryptophan. lac General...
  11. Reaching out to China: Canton Nucleic Acids Forum (CNAF) 2015

    Type
    Blog Post
    Published
    Dec. 1, 2015, 3:30 p.m.
    ...technical developments. Using the Tet-on system, his lab has created a tetracycline cas9 inducible knock-out system...Genome Research Institute (NHGRI) of the NIH, started off with the first keynote presentation. He talked about...remember when small RNA was just something we ran off the bottom of the gel so it wouldn’t muck up northern...interdisciplinary team.  Day two of the conference was kicked off by Nobel Laureate (and Addgene depositor) Craig Mello...
  12. Split-BioID: An Improved Method for Studying Protein-Protein Interactions

    Type
    Blog Post
    Published
    May 1, 2018, 1:57 p.m.
    ...detection methods lack spatiotemporal control or an “on/off switch.” This makes them great tools for providing...speed of labeling. BioID requires 6-24 hours for tetracycline induced expression of the BirA* fusion protein...Split-BioID, Schopp et al allowed 24 hours for tetracycline induced expression and biotinylation of interacting...
  13. Delivery Methods for Generating iPSCs

    Type
    Blog Post
    Published
    April 17, 2018, 1:37 p.m.
    ...iPSC-derived and iPSC-transplanted mice. Cre-deletable or Tet-inducible lentiviruses address some of these concerns...following reprogramming. This can be overcome by using a Tet-inducible virus to allow for controlled expression...out the links at the end of the post for a list of Tet-inducible reprogramming vectors available from Addgene...alteration as possible, with efficiency being the trade-off. Non-integrating approaches, such as episomes, RNA...Check out these plasmids if you’re interested in Tet-inducible lentiviral expression of OSKM reprogramming...
  14. Hot Plasmids - November 2023

    Type
    Blog Post
    Published
    Nov. 14, 2023, 3:35 a.m.
    ...editors, but just as effective and with no additional off-target edits, making them ideal for size-limited ...  By Alyssa NeuhausTo improve delivery and reduce off-target effects of gene therapy, Feng Zhang’s lab ...induced GFP-iPAK4 expressed under promoters like the tet-responsive element (TRE) or the cFos promoter. For...
  15. Mouse Modeling, Part 1: Genetically Engineered Mice

    Type
    Blog Post
    Published
    July 11, 2019, 1:26 p.m.
    ...some challenges still exist. Nucleases may cause off-target effects on regions of the genome with similar... the cell can occur. Similar systems include tetracycline or doxycycline mediated activation of Cre to...
  16. Viral Vectors 101: AAV Variables That Matter

    Type
    Blog Post
    Published
    June 1, 2023, 1:15 p.m.
    ...) the consequences to your experiment if there’s off-target expression.   Once you know that, you’re ready...tyrosine-hydroxylase (TH), can limit which cells express your gene. Off-target expression can still occur (Fig. 3) - for ... two astrocyte selective promoters demonstrating off-target expression in both oligodendrocytes (Olig2...promoter allows you to decide when to turn on, or turn off, gene expression by administering an inducing agent...  Finally, the risks of potential toxicity and/or off-target effects (e.g. recombinase-dependent vectors...2002). Lack of an Immune Response against the Tetracycline-Dependent Transactivator Correlates with Long-Term...
  17. 22 Hot Plasmid Technologies from 2014

    Type
    Blog Post
    Published
    Jan. 6, 2015, 5:21 p.m.
    ...has used an inducible MitoTimer reporter using a Tet-on system (pTRE-Tight-MitoTimer) to show its usefulness...peptide-peptide ligation using SpyLigase Building off their SpyTag/SpyCatcher system for protein-peptide...mutagenesis (K176R) to improve the otherwise slow off-kinetics (15.8 ± 0.4ms from 21.4 ± 1.1 ms); this ...duration. Both of these strategies carry the risk of off-target effects. Harald Janovjak and his team at the...RUSH) use Cre-mediated recombination to turn on or off the expression of shRNA. This system requires less...expression. The capability to turn RUSH and CRUSH alleles off or on enables this method to rapidly address questions...repressor plasmids from Scot Wolfe's lab. These include Tet-inducible CRISPR activators and repressor plasmids...
  18. Hot Plasmids and Viral Preps - May 2021

    Type
    Blog Post
    Published
    May 18, 2021, 1:15 p.m.
    ... underwent affinity screening to select for slow off-rate binders. The best candidates were validated ...where gRNA expression is induced by anhydrous tetracycline. Three new anti-CRISPRs were identified that...
  19. 27 Hot Plasmids from 2016

    Type
    Blog Post
    Published
    Dec. 22, 2016, 3:03 p.m.
    ...functional knock-out via frameshift and minimize off-target effects. The library was cloned into the Liu...unique tissue-specific promoters expressing GFP, tetracycline response elements, and shRNAs many of which ...inserting OsTIR1 into the "safe harbor" AAVS1 locus (a tet-inducible OsTIR1 plasmid is also available). Second...
  20. 28 Hot Plasmid Technologies from 2015

    Type
    Blog Post
    Published
    Dec. 23, 2015, 3:30 p.m.
    ... temporally control which genes are turned on or off in a given area and the can do so in a very specific...gene expression studies, which are evinced by the Tet system and visualization of single molecules via ... which allow you to easily and reversibly switch off and on your favourite signalling pathways (Figure...of the ribosome during translation, which knocks off all mRNA binding proteins as it travels along the...for Translation RNA Imaging by Coat protein Knock-off, is made up of three components: a GFP protein that...
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