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We narrowed to 116 results for: control gRNA

Showing: 21 - 40 of 116 results
  1. CRISPR Methods for Bacteria: Genome Engineering, CRISPRa, CRISPRi, Base Editing, and More

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    Blog Post
    ...pMAZ-SK contains an aTet-inducible gRNA and a backbone-targeting gRNA cassette for plasmid curing through...dCas9 and a gRNA are expressed on pRH2502 and pRH2521, respectively. Both dCas9 and the gRNA are Tet-inducible... gene lambda Red. pTargetF contains the specific gRNA(s), and the repair template is supplied as a dsDNA... array, while pCRISPomyces-2 contains Cas9 and a gRNA cassette. The simpler system of pCRISPomyces-2 displays...condensed design. For both systems, custom spacers/gRNAs are easily inserted using BbsI and Golden Gate Assembly...CAST (CRISPR-associated Transposase) both enable gRNA-directed transposition. INTEGRATE consists of four...array (Bikard et al., 2013), the Qi lab employed a gRNA-based design more familiar to those using CRISPR...
  2. Plasmids 101: The protein expression toolbox

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    Blog Post
    ... What kind of control? On, off, tunable, and/or inducible? How long do you need control? Will temporary...temporary control (a few days) be enough, or do you want a permanent control mechanism? Where is the control...vector! On/off control all the time If your experimental system requires tunable control - or maybe you...forever? You don’t need to resort to the force to control protein expression in mammalian cells: easy to ... will review tried-and-true protein expression control tools as well as explore some new innovations. ...temporarily, we’ve got you covered. Defining your control requirements To pick the best tool for the job,...your protein of interest. CRISPR-Cas9 and a custom gRNA is all you need to generate a frameshift mutation...
  3. CRISPR 101: Mammalian Expression Systems and Delivery Methods

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    Blog Post
    ... to control gene expression. Base editors can help you make precise point mutations near the gRNA target...vivo viral delivery. Cas9 mRNA and gRNA Plasmids containing gRNA and Cas9 are used in in vitro transcription.... Cas9-gRNA ribonucleoprotein complexes Purified Cas9 protein and in vitro transcribed gRNA are combined... or inducible. U6 promoter is typically used for gRNA. May contain reporter gene (e.g. GFP) to identify...lines. Transient or stable expression of Cas9 and/or gRNA in a mammalian cell line that can be transfected...high efficiency. Lentiviral transduction Cas9 and gRNA can be present in a single lentiviral transfer vector...particles. Stable, tunable expression of Cas9 and/or gRNA in a wide variety of mammalian cell lines. Useful...
  4. Optogenetics + CRISPR, Using Light to Control Genome Editing

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    Blog Post
    ...spatial control. Optogenetics uses genetically encoded tools, such as microbial opsins, to control cellular...tools allow scientists to use light to externally control the location, timing, and reversibility of the ...process. Read on to learn about the various light-controlled CRISPR tools available to researchers - some ...published in early 2015 focused on using light to control transcription. Two separate labs, Moritoshi Sato...gene expression while imparting spatiotemporal control, reversibility, and repeatability. The system developed...target DNA sequence as directed by the guide RNA (gRNA), while the CRY2PHR-activator fusion floats freely...expression of the human ASCL1 gene could be spatially controlled in a reversible and repeatable manner. With their...
  5. Top Requested Lentivirus and AAV of 2016

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    Blog Post
    ...individual gene knockouts (using gRNA lentiviruses). Separating Cas9 and the gRNA into two constructs (i.e.,...expressing various gRNAs. It’s better to compare the phenotypic effects of expressing various gRNAs in a monoclonal...in conjunction with a second vector that delivers gRNA, such as lentiGuide-Puro. The alternative single-vector...single-vector systems typically express Cas9 and a gRNA from the same plasmid. LentiCas9-blast virus can be...lentiviruses will no longer be carried over to the gRNA lentiviruses. This means that if you received lentiCas9...from Addgene, you could use it in conjunction with gRNA lentiviruses easily made in your own lab. We provide...Gαi-coupled) DREADD fused to mCherry, all under the control of the human synapsin promoter. Purpose of this...
  6. Hot Plasmids and Viral Preps - July 2021

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    Blog Post
    ...for doing gene targeting, reporter generation, controllable gene knockouts, and inducible gene inactivation...design. B) Strategy for leak-free transcriptional control. C) Iterative transduction workflow overview. Image...SL-insensitive fluorophore (LSSmOrange) as an internal control and a SL-sensitive fluorophore (circularly permuted...the cpGFP without altering that of the internal control (Fig 1). Because this method relies on the fluorescence...Kimmelman targets mouse metabolic genes with ~6 gRNAs per gene.  CRISPR-Act3.0, developed by Yiping Qi's...Shirley Liu's lab targets all mouse genes with 10 gRNAs per gene. The guides are optimized to maximize on-target...
  7. Nanoblades: Tiny CRISPR Ninjas for Genome Editing Difficult Cells

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    Blog Post
    ...are fused to the MLV Gag in place of SpCas9. gRNA A gRNA targeting a DNA sequence of interest is expressed...cells along with the gRNA and Cas9. An “all-in-one” Nanoblades which carries a gRNA, Cas9, and a HDR donor...editing in their livers, while non-injected and control gRNA injected mice had no detectable editing. Additionally...leukemia virus (MLV)-like particles loaded with Cas9-gRNA ribonucleoproteins (RNPs). According to the authors...Nanoblade particle can be loaded with 1-4 different gRNAs. Viral envelope proteins To alter the cell tropism...editing efficiency in mouse BM cells when using a gRNA targeting the Fto gene, while editing was not detected...off-target effects when compared to DNA transfection of gRNA and Cas9 expression plasmids. These results are ...
  8. The Twelve Days of CRISPR

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    Blog Post
    ...Addgene gave to me: tips and tricks for designing gRNAs for CRISPR editing. On the fourth day of CRISPR,...Addgene gave to me: ways to use optogenetics to control CRISPR editing.  On the fifth day of CRISPR, Addgene... day of CRISPR, Addgene gave to me: multiplexed gRNAs.  We hope you’ve been enjoying our CRISPR blog series...
  9. CRISPR 101: Multiplex Expression of gRNAs

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    Blog Post
    ...cleave the gRNAs. gRNAs are flanked by glycine tRNAs to create polycistronic glycine tRNA-gRNA (PTG) constructs...zebrafish!   Why use multiplexed gRNAs? By expressing multiple gRNAs on the same plasmid, you’ll make ...system for processing a continuous multi-gRNA transcript, each gRNA must be expressed from its own promoter...researchers to express multiple gRNA from a single construct. DNA and gRNA are not to scale.   Let’s... your chosen gRNA target sequences and clone them in just as you would for a single gRNA. You’ll clone...clone in the first gRNA using restriction enzyme BbsI and the second gRNA using restriction enzyme BsaI. ...Drosophila, a two-gRNA expressing plasmid is available from the Bullock lab, and gRNAs can be inserted ...
  10. Multiplexed Capture of Promoter-enhancer 3D Chromatin Structures Using CRISPR

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    Blog Post
    ...enrichment of DNA targeted by a negative control gRNA or predicted gRNA off-target sites. Long-range chromatin...2.0, with two gRNAs targeting each site. They found that DNA sequences targeted by the gRNAs were the top...added biotin acceptor site BirA, a biotin ligase a gRNA(s) targeting a single genomic location of interest...When these three components are co-expressed, the gRNA targets the dCas9 to the loci of interest and dCas9...cell lines will have varying levels of dCas9 and gRNA expression. Additionally, CAPTURE 3C-based sequencing... Lentiviral delivery of BioTAP-tagged dCas9 and gRNAs. Using lentiviral delivery of the two remaining ...FLAG-biotin-tagged dCas9, 2) BirA, and 3) one or more gRNAs Two separate lentiviruses delivering 1) a BioTAP-tagged...
  11. New CRISPR Web Resources and #12DaysofCRISPR Recap

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    ...- see our recap below! Day 1: gRNA design tools: How to Design your gRNA for CRISPR Genome Editing and...Cas9 variants: CRISPR 101: Multiplex Expression of gRNAs and The PAM Requirement and Expanding CRISPR Beyond...HypaCas9 Day 10: Transcriptional regulation: Truncated gRNAs for Regulating Gene Expression and CRISPR 101: Epigenetics...Using CRISPR/Cas9 and Plasmids 101: NGS Quality Control for Pooled Libraries Day 12: New website resources...
  12. How to Design Your gRNA for CRISPR Genome Editing

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    Blog Post
    ...same is true when designing gRNAs for using CRISPR technology – the “best” gRNA depends an awful lot on what...restricting gRNAs to 5 – 65% of the protein coding region will still result in many dozens of gRNAs to choose... fewer gRNA to choose from, and thus an optimal sequence may not be available. Predicting gRNA efficacy...basis of the activity of a single gRNA, and thus diversity of gRNAs across a gene should be examined whenever...a less-active gRNA that targets a truly unique site in the genome, or a more-active gRNA with one additional...approaches, and provide updates on how best to design gRNAs. A more extended discussion of these subjects can...button_text" is_json="true" %}{% raw %}"Browse Empty gRNA Expression Vectors"{% endraw %}{% end_module_attribute...
  13. Isolating Genomic Regions of Interest with the CRISPR System

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    ...interest can be targeted using a gRNA, which can easily be cloned into a gRNA expression plasmid. Experimental... bind to a specific DNA sequence via a targeting gRNA. But dCas9 does not cleave the DNA. Much of the ...isolation of a genomic region of interest targeted by a gRNA. CRISPR-mediated purification of a specific genomic...CRISPR system, consisting of dCas9 and targeting gRNA, to identify molecular interactions at this site...with an N-terminal 3xFLAG tag (3xFLAG-dCas9) and a gRNA targeting their genomic locus of interest, the promoter...consisting of a recombinant dCas9 protein and synthetic gRNA, is incubated with fragmented chromatin or library...3xFLAG-tag fused to dCas9, along with a biotinylated gRNA, were successfully used in this "in vitro" form....
  14. Fluorescent CRISPR Reporters: SRIRACCHA and GEmCherry2

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    Blog Post
    ...allows for easy screening of different gRNAs by simply changing the gRNA used when transfecting your cells....-outs of Cas9/gRNA efficiency. So if you are looking to identify the most effective gRNA and enrich cells...labor intensive and quite time consuming.   As Cas9/gRNA activity is crucial for successful CRISPR editing...expression is activated using 4-OH-T and doxycycline. A gRNA that targets your desired gene (whose sequence is... is also found in the reporter gene). A control RFP expression plasmid.  With this set up, all successfully...molecular cloning techniques to determine CRISPR/sgRNA efficiency of an experiment and confirm the correct...enables scientists to both quantify Cas9 activity and sgRNA efficiency as well as enrich for mutants through...
  15. CRISPR 101: Validating Your Genome Edit

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    ...alternative gRNA. Make sure to check out our validated gRNAs to avoid rolling the dice on a new gRNA in the... 3, 2022 by Susanna Stroik. You’ve designed your gRNA and introduced it into your target cells with Cas9...You’ve introduced a donor template along with your gRNA and Cas9 combo and are hoping for homology-directed... proxy for your edit of interest. Using the same gRNA and donor, you can deliver a silent mutation in ...-target changes. This method requires a set of control cells to compare the sequencing reads from your...you have options! If you think delivery of Cas9 or gRNA is the issue, check out or blog on optimizing this...Find gRNA Design Tools Read other CRISPR blog posts Find CRISPR Plasmids at Addgene  ...
  16. CRISPR Plasmids - Empty gRNA Vectors

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    Collection
    ...Vectors CRISPR Plasmids: Empty gRNA Expression Vectors gRNA and Cas gRNA Only Multiplex Resources CRISPR requires...of empty gRNA vectors. Explore our most popular plasmids for expression of gRNA and Cas, gRNA only, or... for control gRNAs . All-in-one Plasmids (gRNA and Cas) ID Plasmid Vector Type Promoter Selectable Marker...Empty gRNA expression vectors for insertion of custom gRNA target sequences. CRISPR...target-specific gRNA in the same cell at the same time. All-in-one plasmids ensure that both the Cas and gRNA are ...or multiple gRNAs in the tables below. Looking for non-targeting control vectors? Search our catalog for... Multiplex gRNA Kits Many CRISPR plasmid kits at Addgene contain multiplex-compatible gRNA plasmids, including...
  17. CRISPR Activation: A Practical Guide

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    Blog Post
    ...the gene into a gRNA finder such as WU-CRISPR (Wong et al., 2015)) or our lab’s sgRNA scorer 1.0 (Now ...uses for Cas9 activators is in genetic screening. gRNAs targeting every gene in the human genome for example...targeted by the activator by simply providing a new gRNA rather than engineering an entirely new protein....difficult to construct and deliver when compared to gRNAs. Additionaly, cDNAs cannot be used to study in cis...Weissman JS (2014) Genome-Scale CRISPR-Mediated Control of Gene Repression and Activation. Cell 159:647...2015) A light-inducible CRISPR-Cas9 system for control of endogenous gene activation. Nat Chem Biol 11...
  18. Simple CRISPR-based Epigenetic Editing: dCas9-directed DNA Demethylation

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    Blog Post
    ... Design your gRNA to overlap the CpG of interest. Having the CpG directly inside the gRNA sequence is ... works, too), but if this is not possible due to gRNA design restrictions, anything within 5 base pairs...especially 3’ of PAM) might work too.  High dCas9 and gRNA expression are key for complete DNA demethylation... fluorescence-activated cell sorting, and stable gRNA expression can be achieved using lentiviral backbones...Ming G-L, King JR, Song H, Sweatt JD (2013) TET1 Controls CNS 5-Methylcytosine Hydroxylation, Active DNA...
  19. 15 Years of Addgene: The Top 15 Plasmids

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    ...from the Zhang lab is used to deliver Cas9 and your gRNA of interest into mammalian cells. This vector was...mammalian vector that expresses both SpCas9 and your gRNAs and was also the top requested plasmid from 2016...shRNA. This scrambled shRNA is used as a negative control for mammalian RNAi experiments.  Find the scrambled...-GFP (PX461) expresses both a Cas9 protein and a gRNA. But instead of Cas9, this plasmid expresses Cas9n...mammalian expression vector encodes both SpCas9 and your gRNA. It’s the former version of our sixth most popular...Cas9 from Streptococcus pyogenes with an invariant sgRNA scaffold and cloning sites for inserting the guide...pyogenes CRISPR chimeric RNA element with customizable sgRNA from the U6 promoter and puromycin resistance from...
  20. Adenoviral Delivery of CRISPR/Cas9 Aims to Expand Genome Editing to Primary Cells

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    Blog Post
    ...Design Your gRNA for CRISPR Genome Editing by John Doench CRISPR-Cas9: Tips for Optimizing sgRNA Activity...Gonçalves; made with BioRender.   Delivering gRNA and Cas9 using adenoviral vectors As compared to...capacity is large enough to carry the Cas9 gene and a gRNA expression cassette in one single viral particle...to the targeted organs or tissues with Cas9 and a gRNA designed to target a mutated gene. In a Scientific...be realized via simple switching of the relevant gRNAs and donor DNA Adenoviral CRISPR/Cas9 genome editing...adenoviral delivery of CRISPR/Cas9. Journal of Controlled Release 298:128–141 . https://doi.org/10.1016...Addgene are: pAdSh.PGK.Cas9, pAdSh.U6.gRNAS1, and pAdSh.U6.gRNAGFP. Gonçalves says that advantages of AdVs...
Showing: 21 - 40 of 116 results