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We narrowed to 321 results for: crispr system

Showing: 201 - 220 of 321 results
  1. Your Lentiviral Plasmid FAQs Answered

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    Blog Post
    ...lentiviral packaging systems differ in two ways. Firstly, 2nd generation systems consist of an envelope...shRNA-mediated knockdown, Tet and Cre-regulated expression, CRISPR genome editing, and more. Not surprisingly, we ...envelope. Three generations of lentiviral packaging systems have been developed over the years based on HIV...experiments; however, the 3rd-generation packaging systems offer the maximal biosafety available for the technology...The minor limitation in using the 3rd-generation system is that it involves transfecting four different... rather than the three used for 2nd-generation systems. Frequently asked questions Now let's get into...cells. When choosing the appropriate gene delivery system, the specific target cell or tissue needs to be...
  2. Addgene: The First Twenty Years

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    Blog Post
    ...And when CRISPR arrived in 2012, our repository was rapidly able to support sharing of CRISPR constructs....org/guides/crispr/” — SirHamhands, responding to a request for “any suggestion for CRISPR online course... the Internet exploded. From day one, we built systems for now-common business practices, like accepting...Network Excellence Award for our electronic MTA system. We also started our blog and YouTube channel in...
  3. Plasmids 101: Using Transposons in the Lab

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    Blog Post
    ...encodes a Type I-F CRISPR-Cas system. This system has four major components: 1) a CRISPR RNA (crRNA), 2) ...eukaryotic genomes.  Components of a transposon system Transposon: The transposon is the DNA sequence...take a closer look at three different transposon systems adapted for use as research tools: Sleeping beauty...ve learned about some of the popular transposon systems, let’s take a look at how they can be used in the...Transposable Elements by Guide RNA-Assisted Targeting) system. INTEGRATE is based on a naturally occurring Tn7...transposon end sequences (Fig. 3A).  For the INTEGRATE system to transpose, first the QCascade complex surveys...’s genomic target site (Fig. 3B). The INTEGRATE system can achieve ~100% integration of DNA up to 10 kB...
  4. Easi-CRISPR: Generating Knock-In and Conditional Mouse Models

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    Blog Post
    ...how you can make CRISPR mouse model generation easi-er! Generating mice before CRISPR The process of generating... process takes ~8-10 months. With CRISPR (B), you can inject CRISPR components directly into a zygote ...crRNA and tracrRNA) for maximum Easi-CRISPR efficiency. Easi-CRISPR is compatible with standard microinjection...Addgene.org Check out our CRISPR Guide Find Plasmids for Cas9 Purification Find CRISPR Plasmids for Mammalian...CRISPR genome editing has made it easier to create knockout alleles in a variety of species, including...relatively simple in C. elegans and bacteria. But CRISPRing typical mouse models, including creating Cre-dependent...conditional alleles, has remained a challenge. Enter Easi-CRISPR: a method that harnesses the power of ssDNA donor...
  5. How to Keep a Lab Notebook for Bioinformatic Analyses

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    Blog Post
    ...included) and we are faced with finding the best system to document these types of analyses and their results... as soon as I began, I realized that I needed a system to keep track of the files that I was continuously...contents in the top directory: A directory is a file system in the computer and is just another name for a ...which files go together. I also prefer the number system to using dates as labels, since I often work on...or may not work for you. The best way to find a system that does is through trial and error, and by asking...Save Time and Track Your Experiments Try out the CRISPR Software Matchmaker Additional Resources on Addgene.org...Protocols for Your Next Experiment Find Our List of CRISPR gRNA Design Tools ...
  6. SciComm: Taking Science to Elementary and Middle Schools

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    Blog Post
    ...on the Addgene blog Browse our CRISPR blog posts Download our CRISPR cheat sheet Read our science communication...Addgene.org Check out our comprehensive CRISPR guide Find CRISPR plasmids and resources ...fortunate to live in a town with a good public school system that has made strong efforts in the last 5 years... we’d already discussed the idea of my giving a CRISPR presentation to their students. I didn’t think ...(which could be adapted for any topic--not just CRISPR): Who am I? Where do I work? The teachers emphasized...this area. What is genome engineering? How does CRISPR work? This section was essentially background slides...protein, plasmid, gene, etc. Though I talked about CRISPR’s molecular mechanism, I was careful to keep it ...
  7. Plasmids for Stem Cell Research

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    ... Commun. 2016 Mar 7;7:10869. Hu CRISPRa Human CRISPR activator system for reprogramming human cells to...Retinal Ganglion Cells AAV/CRISPR Mouse Glia-to-Neuron Conversion by CRISPR-CasRx Alleviates Symptoms ...enogenous genes Human pluripotent reprogramming with CRISPR activators. Nat Commun. 2018 Jul 6;9(1):2643. Otonkoski...four separate lentiviral plasmids A drug-inducible system for direct reprogramming of human somatic cells...Doxycycline-inducible piggyBac transposon reprogramming system; expression of mouse Oct4, Sox2, Klf4, and c-Myc...somatic cell. Sort the table by cell type, delivery system, species, or PI and then select the article link...
  8. Simple CRISPR-based Epigenetic Editing: dCas9-directed DNA Demethylation

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    Blog Post
    ...the Addgene blog CRISPR101: Editing the Epigenome  Mapping the 4D Nucleome with CRISPR/Cas9 Resources ...introduce you to a simpler, yet more effective, CRISPR-based epigenetic approach (spoiler alert: it’s ...dioxygenase  When I started to work on building a CRISPR/dCas9-based tool for DNA demethylation in 2015,...al. 2018, Kaas et al. 2013). Figure 2: CRISPR TET-based epigenetic editing. In reality, editing... naturally in the nuclear environment. One good system to balance these needs is the lentiviral-based ...Moshe Szyf at McGill University, working to develop CRISPR-based tools for epigenetic editing.   References...Resources at Addgene.org Read our CRISPR Guide to Epigenetics References Charlton J, Jung EJ, Mattei AL et al...
  9. Twenty Years of Sharing: Expanding Accessibility

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    ... such as empty backbones, lentiviral packaging systems, and luciferase expression. On individual material...Educational Resource Top Five by Views Guides CRISPR Guide Lentiviral Guide AAV Guide Optogenetics Guide... Plasmids Empty Backbones Bacterial Expression Systems AAV Plasmids Blogs Origin of Replication... What is a Plasmid? How to Design Your gRNA for CRISPR Editing The Promoter Region - Let's Go! How to ...primers to help users get started with tools like CRISPR, lentivirus, and optogenetics — and shared the ...distributors in some countries. ‌We’ve developed systems to allow for easier access to export-controlled...we’ve learned about the importance of smaller, systemic changes, like using alt-text, captions, and inclusive...
  10. Viral Vectors 101: Viral Applications

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    Blog Post
    ...inducibly depending on the vector and virus. Viral CRISPR-Cas9 tools have been engineered to introduce frameshift...before building one from scratch! Why deliver these systems virally instead of by another method? Viral delivery...test thousands of elements simultaneously in your system instead of just one at a time. Many of these libraries...traditional transfection method. This is because viral systems have a high infection frequency and the viral titer... targeting features make them an ideal delivery system for human patients. Multiple viral-based gene therapies...Discuss Gene Therapy with AAV Adenoviral Delivery of CRISPR/Cas9 Aims to Expand Genome Editing to Primary Cells...
  11. How to Design Your gRNA for CRISPR Genome Editing

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    ...on Your CRISPR Basics with Our CRISPR Guide Find CRISPR Plasmids for Your Research Find CRISPR Pooled ...How to Conduct Genome-Wide CRISPR Pooled Library Screens Read other CRISPR Blog Posts Resources on Addgene.org...not quite as broad as for knockout via CRISPR cutting. For CRISPRa, it is most-efficacious to target a ~... Scientist at the Broad Institute, John Doench. CRISPR technology has made it easier than ever both to...content_id":null,"href":"https://www.addgene.org/crispr/empty-grna-vectors/","type":"EXTERNAL"},"open_in_new_tab...considerations before you start an experiment with CRISPR The hammer, the jigsaw, and the wrench are all ...the same is true when designing gRNAs for using CRISPR technology – the “best” gRNA depends an awful lot...
  12. AAV Viral Preps

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    ...Transactivators, Affinity Purification, Cell Ablation, CRISPR Monosynaptic Neuronal Tracing Rabies Virus-Based...Retrograde AAV To target projection neurons Caltech Systemic Capsids PHP.eB, PHP.S, PHP.V1, MaCPNS1, MaCPNS2...AAV5, AAV6, AAV8, AAV9, AAV11, AAVrg, the Caltech systemic serotypes, or others, it will be listed on the...
  13. Hot Plasmids April 2018 - Protein Degradation, Nanoscopy, FIRE-Cas9, and Yeast Expression Tools

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    ...Jerry Crabtree’s lab has developed a new CRISPR/Cas9-based system to study epigenetic modulation. While ...Gearing Listen to the TRIM-Away podcast segment CRISPR and RNAi have helped researchers alter DNA sequence...degradation. Enter TRIM-Away - an antibody-based system developed by the James and Schuh labs. Clift et...approaches to provide temporal control, this new system, Fkbp/Frb Inducible Recruitment for Epigenome editing...and progesterone do not affect each other, these systems can be used together. Aranda-Diaz et al additionally...
  14. Viral Vectors 101: Parts of the AAV Transfer Plasmid

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    Blog Post
    ...reporter like GFP, some smaller CRISPR-Cas proteins such as SaCas9, CRISPR gRNAs, or your gene of interest...pairs of lox sites which are part of a dual lox system called FLEX or DIO. Lox sites are recognized by...activation of a transgene. Figure 2: FLEX Cre-Lox system.  WPRE The Woodchuck Hepatitis Virus (WHP) Posttranscriptional...
  15. Viral Vectors 101: Preparing Pooled Libraries

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    Blog Post
    ...and validation of CRISPR libraries. The Genome Engineering using CRISPR/Cas Systems Forum- Moderated by...Lentiviral CRISPR Libraries- A nice overview of what to consider when using pooled lentiviral CRISPR libraries...but we do distribute several of our most popular CRISPR pooled libraries and one of our most popular barcoding...Resources and references References Genome-scale CRISPR-Cas9 knockout and transcriptional activation screening...Practical Considerations for Using Pooled Lentiviral CRISPR Libraries. Curr Protoc Mol Biol. 2016 Jul 1;115..., Brigham MD, Sanjana NE, Zhang F. Genome-scale CRISPR-Cas9 knockout and transcriptional activation screening...
  16. Capturing a Moment with Marc Zimmer’s “The State of Science”

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    Blog Post
    ...acknowledging the systemic sexism in the scientific world? Would biohackers even be a thing if CRISPR hadn’t made...publications and funding, bioethics in the age of CRISPR, and the challenges of science becoming increasingly...rapidly changing world of genome engineering via CRISPR.  Though the individual topics are not surprising...shocking. Mainstream media outlets have addressed CRISPR frequently over the last several years, but lay...scientists themselves.  The sections on optogenetics and CRISPR of course address some of the ethical implications...easy, fast, and cheap distribution of the newest CRISPR-Cas plasmids, has been a key driver of the technology...own books. Multiple books have been written about CRISPR alone, and Zimmer himself has written entire books...
  17. Four Ways to Package Transgenes That Exceed the Size Limit of Adeno-associated Virus

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    Blog Post
    ...increasing the size of the AAV donor template for CRISPR-mediated homology directed repairs (HDR). Split...sequential homology directed repairs (HDR) with CRISPR/Cas9. Donor A contains: 400bp homology arms to ...single step and serve as donors for two consecutive CRISPR-mediated HDR events which results in the integration...a split AAV method While the hybrid dual vector system has a slight advantage over the overlapping and...reconstituted, there is currently no one ideal split vector system. Overall the efficiency of transgene expression....org/10.1172/jci34316 Bak RO, Porteus MH (2017) CRISPR-Mediated Integration of Large Gene Cassettes Using... A, Yue Y, Lai Y, Duan D (2008) A Hybrid Vector System Expands Adeno-associated Viral Vector Packaging...
  18. AAV Molecular Tools

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    ...nuclease used in the CRISPR-Cas9 system for targeted genome editing. ID Name Expression System Activity Serotype...tetracycline (tet)-inducible expression systems . ID Name Expression System Activity Serotype PI 99118 pAAV-CAG-tTA...can be used for viral TRAP). ID Name Expression System Activity Serotype PI 98747 pAAV-FLEX-EGFPL10a EF1a-driven...neuronal connectivity labeling. ID Name Expression System Activity Serotype PI 51509 AAV phSyn1(S)-FLEX-tdTomato-T2A-SypEGFP-WPRE...can be used for cell ablation. ID Name Expression System Activity Serotype PI 45580 pAAV-flex-taCasp3-TEVp...for cell or protein labeling. ID Name Expression System Activity Serotype PI 149415 pAAV-TBG-ER-TurboID...various genes for overexpression. ID Name Expression System Activity Serotype PI 58376 pAAV/D377Y-mPCSK9 hAAT-driven...
  19. A History of Genome Engineering in Popular Culture

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    ... the ZFNs.   Genetic Engineering Era: Post CRISPR  CRISPR The strategy of using a protein to recognize... Find more blog posts about CRISPR Learn more about the history of CRISPR Read about other genome editing...methods Resources on Addgene.org Visit our CRISPR guide Find CRISPR plasmids for your research Browse plasmids...Zhang F (2013) Genome engineering using the CRISPR-Cas9 system. Nature Protocols 8:2281–2308 . https://doi.org...during this period.  Genetic Engineering Era: Pre-CRISPR  Having visualized and understood the DNA, the ...breakthrough in the world of genetic engineering as CRISPR-Cas editing soon replaced the protein-based DNA-binding... gene editors (meganucleases, ZFNs, TALENs, and CRISPR-Cas) is that they induce double-strand breaks (...
  20. Distribution to Industry

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    ...Mutation Libraries CRISPR Thorsten Stiewe Use these donor vector libraries for CRISPR/Cas9-mediated saturation...Fusions from Promega COVID-19 SARS-COV-2, ACE2, and CRISPR tools Fluorescent Proteins from the Michael Davidson...England Biolabs Cancer Research from Sinai Health System Plasmids from the Structural Genomics Consortium...
Showing: 201 - 220 of 321 results