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Showing: 1 - 20 of 284 results
  1. CRISPR 101: Anti-CRISPR Proteins Switch Off CRISPR-Cas Systems

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    Blog Post
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    Sept. 15, 2020, 6:07 p.m.
    ... do anti-CRISPR proteins work? Anti-CRISPRs proteins are highly diverse but most block CRISPR activity... off CRISPR activity. The ability to turn off CRISPR activity is an important step towards CRISPR-based.... Discovery of anti-CRISPR proteins That is, until the discovery of anti-CRISPR proteins in 2012 (Bondy-Denomy..., 2012). Anti-CRISPR (Acr) proteins are phage-derived small protein inhibitors of CRISPR-Cas systems that...Since these early anti-CRISPR studies, scientists have discovered over 50 anti-CRISPR proteins that interact...others can inhibit CRISPR enzymes from multiple species of bacteria.  A note on anti-CRISPR nomenclature Acr... type II-A CRISPR-Cas systems. A full list of Acr proteins organized by the type of CRISPR-Cas system ...
  2. CRISPR Antimicrobials

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    Blog Post
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    Nov. 10, 2019, 3:58 p.m.
    .... Advantages of CRISPR over traditional antibiotics The potential advantages of CRISPR over traditional...plasmid-based, CRISPR systems (Find the Citorik Plasmids here). In both cases, they used 1-2 CRISPR crRNAs targeting... Blog CRISPR Methods for Bacterial Genome Engineering Treating Muscular Dystrophy with CRISPR Gene Editing...Using CRISPR to Edit Disease out of the Genome  Additional Resources on Addgene.org Find CRISPR Plasmids...Plasmids for Your Research Read Our CRISPR Guide Pages Find CRISPR gRNA Design Tools ...’ll have less potential to become resistant to? CRISPR may provide a method for doing just that. While...challenges remain in the delivery of these agents, CRISPR antimicrobials could become our newest line of ...
  3. New Optimized Genome-wide CRISPRko, CRISPRi, and CRISPRa Libraries

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    Blog Post
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    Sept. 9, 2020, 4:50 p.m.
    ...outperformed another CRISPR library with 6 sgRNAS, highlighting the benefit of sgRNA design in CRISPR libraries.... about CRISPR Kinome Libraries available at Addgene Learn about the advantages of pooled CRISPR libraries...genome-wide screening using CRISPR Resources on Addgene.org Find CRISPR plasmids and resources here ...genome-wide CRISPRko, CRISPRi, and CRISPRa libraries have been shown to outperform other popular CRISPR libraries...repressor (CRISPRi) or an activation domain (CRISPRa) to regulate gene expression. Some CRISPR libraries...generation libraries for genome-wide CRISPRa, CRISPRi, and CRISPR-Cas9 knockout genetic screens." bioRxiv...advantages of the optimized human CRISPR libraries. Brunello: human CRISPRko sgRNA library The Brunello library...
  4. CRISPR Methods for Bacteria: Genome Engineering, CRISPRa, CRISPRi, Base Editing, and More

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    Blog Post
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    April 13, 2021, 1:20 p.m.
    ...multi-spacer CRISPR array, CRISPR-transposons can be multiplexed. Transcriptional repression (CRISPRi) in bacteria...Will Arnold. Although CRISPR systems were first discovered in bacteria, most CRISPR-based genome engineering...inefficiency? Use CRISPR to make it a selectable process! As NHEJ is ineffective in bacteria, CRISPR-induced double...eukaryotes in that CRISPR isn’t the primary editing force. In contrast, in E. coli, CRISPR is primarily a ...to directly modify a given gene. CRISPR-tranposons By combining CRISPR editing and transposons, the Sternberg...scenario allows for several potential CRISPR applications. First, CRISPR can be used to target locations in... Check out our CRISPR Featured Topic Page Learn more about Cpf1 Find out about CRISPR Multiplexing Resources...
  5. CRISPR 101: A New Series on Genome Editing & CRISPR-Cas

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    Blog Post
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    Nov. 19, 2019, 5:11 p.m.
    ...principles driving CRISPRs and genome editing technology. Your guide to the CRISPR basics In our first...non-homologous end joining, using CRISPR for gene activation, creating deletions using CRISPR-Cas tools, validation... with experience using CRISPR tools and would like to guest blog for the CRISPR 101 series, email us at...Satisfy your CRISPR craving by reading these informative blogs and articles: History of CRISPR Cas - A tale...I am sure by now you have heard of CRISPRs. (If not, you can get up to speed here and here and here.)...release the first post in our newest blog series - CRISPR 101 - a companion series to our popular Plasmids...validation, and more. As we add to this CRISPR-related resource, please let us know if you have questions or would...
  6. CRISPR 101: Engineering the Plant Genome Using CRISPR/Cas9

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    Blog Post
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    Dec. 22, 2020, 8:33 p.m.
    ...functionality of the CRISPR system in most organisms, some plant-specific changes to CRISPR components are ...genome engineering using CRISPR, highlight the specific modifications to CRISPR machinery that allow for...researchers through Addgene. CRISPR components for plant genome engineering CRISPR can be used to knockout,...developed in other model organisms (see our CRISPR guide for common CRISPR principles). However, plant-specific...modifications to commonly used CRISPR plasmids are necessary to use the CRISPR system in plant cells. Like...plasmid. Delivering CRISPR components to plant cells Once you have selected the correct CRISPR components for...Remember, efficient delivery of CRISPR components is essential for any CRISPR experiment, and failure to express...
  7. Tips for a 1st Time CRISPR User (by a 1st Time CRISPR User)

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    Blog Post
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    April 27, 2021, 3:04 p.m.
    ...I was expecting when I set out to make my first CRISPR/Cas9 gene edit. I wanted to inactivate the gene...objective, it was surprisingly easy. It’s true, I CRISPRed. In this post, I’ll summarize the basic steps ...analyzing a gene edit using Addgene’s lentiviral CRISPR tools. Cas9 delivery Overview: Before any editing...homologous recombination (Rago et al., 2007). Using CRISPR, I was able to knockout BRAF in a human cancer ... Improved vectors and genome-wide libraries for CRISPR screening. Sanjana NE, Shalem O, Zhang F. Nat Methods... in Rational design of highly active sgRNAs for CRISPR-Cas9-mediated gene inactivation. Doench JG, Hartenian...maximize activity and minimize off-target effects of CRISPR-Cas9. Doench JG, Fusi N, Sullender M, Hegde M, ...
  8. The Open Repository of CRISPR Screens: CRISPR Screen Data in One Place

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    Blog Post
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    Jan. 21, 2020, 2:34 p.m.
    ...screening using CRISPR Find all of our CRISPR pooled library blog posts Check out all of our CRISPR blog posts... of CRISPR screen data that might be able to help you out. What is the Open Repository of CRISPR Screens... accessibility of CRISPR-based phenotypic screen datasets. Original published CRISPR screen data is curated...the Open Repository of CRISPR Screens BioGRID ORCS currently houses over 890 CRISPR screens in 629 cell ...   Include your CRISPR screen data in ORCS  Researchers who wish to have their CRISPR screen data included...Addgene.org Read our CRISPR guide Learn more about plasmid pooled libraries Find CRISPR plasmids for your... post was contributed by the Open Repository of CRISPR Screens. Imagine you’ve just discovered that your...
  9. Mobile-CRISPRi: Bringing CRISPRi to Diverse Bacteria

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    Blog Post
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    Dec. 23, 2019, 2:34 a.m.
    ... libraries Read all CRISPR blog posts Resources on Addgene.org Browse our CRISPR interference plasmids...plasmids Find bacterial CRISPR plasmids Read our CRISPR guide ...about other CRISPR methods for bacterial genome engineering   Learn about human CRISPRko, CRISPRi, and CRISPRa...them. For example, gene knockdown with CRISPR interference (CRISPRi) has been limited to lab-adapted bacteria...disease-associated. Mobile-CRISPRi: a modular approach for CRISPRi transfer Mobile-CRISPRi offers two advantages...knockdown experiments. Mobile-CRISPRi applications Mobile-CRISPRi expands CRISPRi to non-model bacteria including...introduce CRISPRi machinery into diverse bacteria species. Existing protocols can transfer CRISPRi into a...
  10. New CRISPR Web Resources and #12DaysofCRISPR Recap

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    Blog Post
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    Nov. 24, 2019, 5:50 p.m.
    ...reversible CRISPR modification. In addition to these subpages, our updated CRISPR Guide and CRISPR History...Heaven: CRISPR and AAV Day 6: Bacteria: CRISPR Methods for Bacterial Genome Engineering and CRISPR Antimicrobials...Since the start of the CRISPR revolution, Addgene has distributed over 100,000 CRISPR plasmids. But that’...popular CRISPR blogs to keep them current. Here are some of the changes we’ve made: New CRISPR plasmid...tools: How to Design your gRNA for CRISPR Genome Editing and The CRISPR Software Matchmaker Day 2: Homology... repair: CRISPR 101: Homology Directed Repair and 3 Tips to Improve HDR Efficiency for CRISPR Editing ...Cpf1: A New Tool for CRISPR Genome Editing and Multiplex Genome Editing with CRISPR-Cpf1 Day 4: Edit validation...
  11. CRISPR 101: Which Cas9 Do I Choose for My CRISPR Experiment?

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    Nov. 19, 2019, 8:21 p.m.
    ... PAM Requirement and Expanding CRISPR Beyond SpCas9”. Non-Cas9 CRISPR endonuclease, Cpf1 Note: Cpf1 ...institute.  This non-Cas9 CRISPR endonuclease, termed Cpf1, is a class 2 CRISPR endonuclease that is capable... See our CRISPR guide pages for more info on how to generate specific gene edits using CRISPR. Activation...entitled “CRISPR 101: Validating Your Genome Edit”. Find Validated gRNAs for Your Next CRISPR Experiment...about CRISPR Pooled Library Experiments Additional Resources on the Addgene Website Find CRISPR Plasmids...on Your CRISPR Background with Our CRISPR Guide Find Software Tools for gRNA Design ... Note: The blog post, Choosing a CRISPR Nuclease: Site Accessibility, Specificity, and Sensitivity, contains...
  12. It’s CRISPR Week at Addgene!

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    Jan. 3, 2020, 7:41 p.m.
    ...too! The CRISPR field is always changing so we’ve been busy updating our CRISPR guide. Our CRISPR guide ...for planning your CRISPR experiment. For a quick guide to CRISPR, download our CRISPR Cheat Sheet....you use CRISPR. Hope you will join us this week at #AddgeneCRISPRweek. We updated the CRISPR guide! If..., we received the first CRISPR plasmid deposit. Now we have over 8,000 CRISPR plasmids in the repository...That’s a lot of CRISPR! As we’ve shared these tools over the years, the amount of CRISPR educational resources...about CRISPR. We’ll have a different theme for each day. Beginning today, we’ll start with a CRISPR overview...using CRISPR and Wednesday will highlight some Cas9 variants. Next, we’ll look at various CRISPR applications...
  13. CRISPR Cheat Sheet

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    Jan. 27, 2021, 3:03 p.m.
    ...Applications of CRISPR: Cut: CRISPR can be used to cut the DNA sequence. With a repair template, CRISPR can be...Jennifer Tsang. We have some crisp new CRISPR material for you!  The CRISPR field moves fast. That’s why we’...Addgene’s CRISPR 101 eBook. This new edition of the eBook includes the details on advances in CRISPR including... Prime editing Anti-CRISPRs … you name it! So get excited and download the CRISPR eBook today! P.S - ...refresher before you dive into the CRISPR eBook, check out the CRISPR Cheat Sheet. Download the PDF using...same information. Download a PDF of CRISPR Cheat Sheet here!   CRISPR Cheat Sheet Clustered Regularly Interspaced...applied goal. Components of CRISPR: gRNAs: Sequences of RNA that direct the CRISPR system to cut other DNA...
  14. The Twelve Days of CRISPR

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    Blog Post
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    Dec. 22, 2020, 2:15 p.m.
    ...new CRISPR content designed to help you with your CRISPR experiments and to learn about new CRISPR tools... day of CRISPR, Addgene gave to me: CRISPR methods for bacteria.  On the eighth day of CRISPR, Addgene...the recap! The twelve days of CRISPR recap On the first day of CRISPR, Addgene gave to me: a primer on...On the second day of CRISPR, Addgene gave to me: SHERLOCK and DETECTR, two CRISPR-based methods to detect... third day of CRISPR, Addgene gave to me: tips and tricks for designing gRNAs for CRISPR editing. On the...the fourth day of CRISPR, Addgene gave to me: ways to use optogenetics to control CRISPR editing.  On the...fifth day of CRISPR, Addgene gave to me: five methods for detecting SARS-CoV-2 using CRISPR.  On the sixth...
  15. Components of CRISPR/Cas9

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    Aug. 31, 2020, 5:42 p.m.
    ...of the major CRISPR lingo and will be able to describe the functions of the various CRISPR/Cas9 components...from pre-crRNAs derived from CRISPR arrays. In most systems used for CRISPR-mediated genome editing, these...Updated Mar 26, 2020. At their most basic level, CRISPR/Cas9 genome editing systems use a non-specific ...post is intended to provide a general overview of CRISPR components, new Cas9 variants are being discovered...specificity). Cas9 endonuclease functions While native CRISPR/Cas systems have a variety of enzymes responsible...function, when used for genome engineering, the only CRISPR protein required is the Cas9 endonuclease or a ...or gRNA (sometimes sgRNA) In the native Type II CRISPR/Cas system, Cas9 is guided to its target sites ...
  16. The CRISPR Software Matchmaker: A New Tool for Choosing the Best CRISPR Software for Your Needs

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    Nov. 22, 2019, 4:44 p.m.
    ...Read Our CRISPR Guide to Catch up on All the CRISPR Basics Read Other Blog Posts about CRISPR Find validated...in the first place? How CRISPR innovation affected software development CRISPR, like the miRNA bubble ... think we are currently at in the CRISPR software space. The CRISPR research community hasn't had a chance...consensus on the best CRISPR software tools yet. As a genome editing tool, the CRISPR/Cas9 technology has...pool of CRISPR software embodies solutions that facilitate most experimental applications in CRISPR engineering...type of CRISPR experiment being pursued. You should also look at the glossary section of the CRISPR Software...blogger Cameron MacPherson at the Institut Pasteur CRISPR software and the piñata effect Two years ago I ...
  17. Hot Plasmids - December 2019 - CRISPR pooled library, LipoGlo, CRISPRa, and Voltage Imaging Tools

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    Dec. 10, 2019, 1:58 p.m.
    ...retroviral mouse CRISPR knockout library Article contributed by Alycia Bittner CRISPR pooled libraries...method used to introduce the gRNAs into cells. Most CRISPR pooled libraries have been created in lentiviral...by lentivirus, and thus screening with available CRISPR libraries was not possible. Primary murine T cells...Sarah Teichmann and colleagues created a retroviral CRISPR knockout library using gRNAs designed by the Kosuke...factors as the screen readout. This retroviral mouse CRISPR pooled library can be used for screening of cells...in cells with few genetic tools. Find the mouse CRISPR knockout library at Addgene. Henriksson et al.,...31366908 Adapting sigma54-dependent transcription for CRISPR activation in bacteria Article contributed by Will...
  18. Genome-wide Screening Using CRISPR

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    Aug. 20, 2020, 2:28 p.m.
    ...up on the various CRISPR technologies, check out Addgene's CRISPR Guide. What CRISPR-based reagents are...Libraries Find More CRISPR Resources at Addgene: Find CRISPR Plasmids Read our CRISPR Guide Find tools ...through Addgene.  What makes CRISPR so special? A major advantage of CRISPR/Cas9 over previous genome editing...expressing cells. Pooled lentiviral CRISPR libraries (referred to simply as “CRISPR libraries”) consist of a heterogeneous...lentiviral transfer vectors to create the CRISPR library. CRISPR libraries have been created to knock out...ensure that you select the correct CRISPR library. Choosing the CRISPR library that is right for you There...steps involved in a CRISPR screen? Performing a forward genetic screen using CRISPR libraries is a multi-step...
  19. History of CRISPR Cas - A tale of survival and evolution

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    Blog Post
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    April 27, 2021, 3:48 p.m.
    ... more information on CRISPR/Cas, check out Addgene’s CRISPR Guide or find CRISPR/Cas plasmids for your...blockbuster known as the CRISPR (clustered regularly interspaced palindromic repeats) Cas (CRISPR associated genes...them into the CRISPR sequence. Separate Cas proteins then express and process the CRISPR loci to generate...the challenge - Evolution of anti-CRISPR genes in phages The CRISPR/Cas adaptive immune system seems like...identified that neutralize CRISPR/Cas. Earlier this year, expression of 1 of 5 anti-CRISPR genes were found to...translatable to the other CRISPR subtypes. Still, the large and dynamic range of CRISPR systems between and ...let's look at how prokaryotes originally utilized CRISPR/Cas as a powerful and adaptive defense strategy...
  20. What's New in CRISPR - September 2019

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    Jan. 6, 2020, 7:03 p.m.
    ...metastasis CRISPR screen. The Chen Mouse Tumor Suppressor Gene CRISPR Knockout Library is an AAV CRISPR knockout...blog Download the CRISPR 101 eBook Find our CRISPR 101 blog posts Read our CRISPR cheat sheet Resources...the new CRISPR plasmids available at Addgene. We will still periodically focus on specific CRISPR plasmid...CasX Drug inducible CRISPR/Cas9 activation E. coli genome-wide inhibition library CRISPR knockout libraries...Library CRISPR knockout libraries for cancer research The Sidi Chen lab recently published two CRISPR knockout...Metastasis CRISPR-Cpf1 Double Knockout Library Find the Mouse Tumor Suppressor Gene CRISPR Knockout Library...Resources on Addgene.org Read our CRISPR guide Find CRISPR plasmids by function Find recently deposited plasmids...
Showing: 1 - 20 of 284 results