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Showing: 141 - 160 of 174 results
  1. How to Deposit Your Plasmids with Addgene

    Type
    Blog Post
    Published
    Feb. 27, 2024, 2:15 p.m.
    ... Encodes gRNA/shRNA A plasmid with one or more gRNA or shRNA sequences cloned into it. gRNAs are used...used for directing CRISPR/Cas9 to a targeted genomic location, while shRNAs are used to knockdown expression...gene contained within your insert (or targeted by a gRNA/shRNA) and select the species that the gene or insert...
  2. Typing CRISPR Systems

    Type
    Blog Post
    Published
    March 18, 2025, 1:15 p.m.
    ...blog CRISPR 101: Cas9 vs. The Other Cas(s) CRISPR 101: RNA Editing with Cas13 Build your CRISPR vocabulary...Additional resources on Addgene.org CRISPR guide CRISPR plasmids CRISPR references ...Classification Structure Principles of CRISPR classification While CRISPR systems now seem neatly organized...versus class 2 There are two CRISPR classes: Class 1 and Class 2. Class 1 CRISPR systems use multi-Cas effectors... Type I CRISPR systems make up the majority of Class 1, and are the most common type of CRISPR overall...complex of the CRISPR types and is thought to be the common ancestor of all other CRISPR systems. Type ...immune functions that other CRISPR types do, due to a lack of canonical CRISPR features (Pinilla-Redondo...
  3. How to Keep a Lab Notebook for Bioinformatic Analyses

    Type
    Blog Post
    Published
    June 2, 2016, 2:30 p.m.
    ...Protocols for Your Next Experiment Find Our List of CRISPR gRNA Design Tools ...Save Time and Track Your Experiments Try out the CRISPR Software Matchmaker Additional Resources on Addgene.org...
  4. Plasmids 101: Gibson Assembly and Other Long-Homology Based Cloning Methods

    Type
    Blog Post
    Published
    March 1, 2016, 3:30 p.m.
    ...mixing and matching of parts. Gibson assembly meets CRISPR Gibson can be adapted to more complicated cloning...use of Gibson assembly combined with the popular CRISPR technology and is described in a recent publication...linearized vector, the Cas9 enzyme along with a specific gRNA was used to cleave the 22kb vector. When followed...second example of using Gibson Assembly along with CRISPR was also described recently (Jiang et al. 2015)...chromosome (up to 100 kb) were specifically cut out via CRISPR and then assembled into a vector using Gibson assembly...homology with the bacterial chromosome fragments. CRISPR cutting was used to circumvent the need to PCR ...Wang A, Li K, Wang B, Jin S, Reiser M, Lockey RF. CRISPR/Cas9 nuclease cleavage combined with Gibson assembly...
  5. Plasmids 101: In-house NGS Plasmid Quality Control Now at Addgene

    Type
    Blog Post
    Published
    April 6, 2021, 12:30 p.m.
    ...portion of the plasmid in the pool - ex. the gRNA in a CRISPR library. In general, our QC scientists work...Brigham MD, Sanjana NE, Zhang F (2017) Genome-scale CRISPR-Cas9 knockout and transcriptional activation screening...
  6. Plasmids 101: Modular Cloning Applications and Kits

    Type
    Blog Post
    Published
    May 14, 2024, 1:15 p.m.
    ...repurposed for CRISPR applications (gene insert = Cas9 + gRNA), Addgene distributes specialized CRISPR kits too...more of these kits, as there are many options! CRISPR CRISPR-Cas can harness the power of MoClo to expand... the most intuitive CRISPR MoClo application is to assemble multiple unique sgRNAs into a multi-TU targeting...including conditional gene expression, multiplexed CRISPR, and chromosomal integration of larger expression...edit optimization, and more. While there are many CRISPR-Cas libraries and tools available for certain model...biologists, Addgene has not one, not two, but three CRISPR MoClo kits for plants that work for both monocots...MoClo can help you achieve it! More recently, a CRISPR MoClo kit termed Fragmid was developed for mammalian...
  7. Hassle-free 96-well Format Epitope Tagging Using Cas9 Ribonucleoprotein

    Type
    Blog Post
    Published
    June 28, 2018, 3:01 p.m.
    ...Enhanced CRISPR/Cas9-mediated precise genome editing by improved design and delivery of gRNA, Cas9 nuclease...Resources on Addgene.org Browse CRISPR plasmids Check out our CRISPR guide pages Find ready-to-use Cas9...intended target site. With the widespread adoption of CRISPR/Cas9 technology and rapid improvements in the field...delivery Epitope tagging of mammalian genes using CRISPR depends on successful delivery of three reagents...using custom synthetic two-part cr/tracrRNAs for CRISPR experiments (in collaboration with Integrated DNA...tagging is scalable to 96-well format. Off-the-shelf CRISPR reagents for the knock-in experiment were pre-assembled...csRNP knock-in experiments If your lab is new to CRISPR/Cas9 experiments, there is no need to worry at ...
  8. Twenty Years of Sharing: Expanding Accessibility

    Type
    Blog Post
    Published
    Nov. 21, 2024, 10:47 p.m.
    ...Replication What is a Plasmid? How to Design Your gRNA for CRISPR Editing The Promoter Region - Let's Go! How...Educational Resource Top Five by Views Guides CRISPR Guide Lentiviral Guide AAV Guide Optogenetics Guide...primers to help users get started with tools like CRISPR, lentivirus, and optogenetics — and shared the ...Addgene blog Twenty Years of Addgene Sharing: CRISPRTwenty Years of Sharing: Addgene's Viral Vector Service...
  9. New Optimized Genome-wide CRISPRko, CRISPRi, and CRISPRa Libraries

    Type
    Blog Post
    Published
    Oct. 4, 2018, 12:44 p.m.
    ... 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...advantages of the optimized human CRISPR libraries. Brunello: human CRISPRko sgRNA library The Brunello library...analysis of the sgRNAs, Brunello even with only a single sgRNA outperformed another CRISPR library with ...with 6 sgRNAS, highlighting the benefit of sgRNA design in CRISPR libraries. Thus, the Brunello library proves...
  10. The Open Repository of CRISPR Screens: CRISPR Screen Data in One Place

    Type
    Blog Post
    Published
    Jan. 21, 2020, 2:30 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...
  11. Pooled CRISPR Libraries Offer Genome-Wide Control for Large-Scale Functional Screens

    Type
    Blog Post
    Published
    Feb. 24, 2015, 7:50 p.m.
    ... the CRISPR system was a large one.  The question for her then was this: Can you engineer CRISPR-Cas9 ...Two-way CRISPR screening In October, Jonathan Weissman’s lab introduced additional pooled CRISPR libraries...CRISPR technology has changed how scientists edit and control genes, but according to the Broad Institute's...Institute's Silvana Konermann, the first generation of CRISPR-Cas9 plasmids were not designed with gene activation...lab describe just such a system, which they call CRISPR/Cas9 Synergistic Activation Mediator or SAM. SAM...earlier by the Zhang lab for GeCKO, a lentiviral CRISPR library enabling genome-scale, knockout screening...review the steps for how to use pooled lentiviral CRISPR libraries and keep the following in mind: These...
  12. Analyzing CRISPR Editing Results with ICE from Synthego

    Type
    Blog Post
    Published
    May 8, 2018, 1 p.m.
    ... Check out our CRISPR guide Find CRISPR plasmids for your research Find other CRISPR software resources... Guide for Analyzing CRISPR Editing Results with ICE on Synthego’s blog. CRISPR-based genome engineering...Inference of CRISPR Edits) to solve this problem. This tool was initially created to support the CRISPR analysis...successful CRISPR experiments. Jessica is a sci-fi enthusiast, and when she is not guiding CRISPR researchers...Addgene Blog Browse our CRISPR featured topic page xCas9: Engineering a CRISPR Variant with Pam Flexibility...methods. Still, generating reliable results from CRISPR edit data requires the help of robust software ...to produce quantitative, NGS-quality analysis of CRISPR editing - enabling a ~100-fold reduction in cost...
  13. Uncovering Ancestral Bias in CRISPR Research

    Type
    Blog Post
    Published
    Nov. 29, 2022, 2:15 p.m.
    ...tool that could analyze CRISPR sgRNAs and report the likelihood of any given sgRNA having an ancestral bias...extension, race. Many researchers do large-scale CRISPR screens in cancer cell lines, looking to uncover... and Boehm labs pulled data from more than 1000 CRISPR screens in DepMap to see if they could identify...Since about 90% of the cell lines used in DepMap CRISPR screens are of either European or East Asian ancestry...it was coming through an unexpected source: the CRISPR guides, short pieces of RNA that bind to a cell...does the reference genome actually reference?  The CRISPR guides used in the screens they analyzed were designed...reference genome – even single mismatches within a CRISPR guide can prevent the guide from binding to the...
  14. The 12 Days of CRISPR: 2021

    Type
    Blog Post
    Published
    Dec. 28, 2021, 2:15 p.m.
    ...Twelve Days of CRISPR campaign! But if you missed our tweets featuring the best of CRISPR in 2021 and useful...here.  On the first day of CRISPR, Addgene gave to me: a miniature CRISPR-Cas system for mammalian use...machinery. On the fifth day of CRISPR, Addgene gave to me: efficient CRISPR editing with a hypercompact ...seventh day of CRISPR, Addgene gave to me: programmed genome editing by a miniature CRISPR-Cas12f nuclease... day of CRISPR, Addgene gave to me: a primer on prime editing.  On the eleventh day of CRISPR, Addgene...post.  On the twelfth day of CRISPR, Addgene gave to me: an updated CRISPR 101 e-book (to help with the... get enough of CRISPR? Neither can we! Subscribe below to get updates on all our CRISPR content.  ...
  15. A Needle in a Base-Stack: Cas9 Structural Biology

    Type
    Blog Post
    Published
    June 4, 2024, 1:15 p.m.
    ...Addgene's CRISPR Guide Addgene's CRISPR 101 eBook  Resources on the Addgene blog Components of CRISPR  xCas9...engineered CRISPR enzymes with their own tradeoffs. And this article only covered Cas9! Other CRISPR enzymes...Have you ever designed a CRISPR guide RNA and wondered why it is limited to only 20 bases, or why it’...structure can help us understand the parameters of CRISPR experimental design. Let’s dive into some structural...known proteins; they are completely unique to the CRISPR system (Nishimasu et al., 2014). Table 1. Summary...positively charged channel between the two lobes. For CRISPR to be programmable for any arbitrary sequence, ...better understand how to manipulate it. Happy CRISPRing!   Molecular graphics and analyses performed with...
  16. Hot Plasmids and Viral Preps - September 2021

    Type
    Blog Post
    Published
    Sept. 21, 2021, 1:15 p.m.
    ...10.1186/s12915-020-00929-7    The CRISPR corner By Jennifer Tsang New CRISPR plasmids are always being added...To find all of the CRISPR plasmids available from Addgene, head over to our CRISPR Plasmids and Resources...other pneumococcal strains. The BARBEKO sgRNA library uses CRISPR cytosine base editors to disrupt gene ...A new tool for enriching ABE-targeted cells The CRISPR Corner New ready-to-use viral preps   Improved..., in addition to puromycin resistance.  The MYC-CRISPR library targets E-boxes genome-wide. It was designed...involved in DNA damage response and DNA repair.  A new CRISPR pooled library targeting S. pneumoniae D39V from...Veening is now available with one sgRNA per operon or gene. The sgRNA pool can also target core operons...
  17. Using CRISPR/Cas9 to Edit Disease Out of the Genome

    Type
    Blog Post
    Published
    June 23, 2022, 1:15 p.m.
    ...post on CRISPR’s potential for monogenetic diseases, the bulk of which you can find below. CRISPR for complex...proof-of-principle for use of CRISPR to correct single-gene conditions. Remaining hurdles in CRISPR biology “I think...using sgRNA for selection and optimization. In addition, the current work in developing anti-CRISPR proteins...Northeastern University.  There can be no doubt that CRISPR/Cas9 technology has been a breakthrough for the... complex genetic diseases As CRISPR technology becomes increasingly more cost effective and precise, researchers...diseases. So we’re revisiting this post to look at CRISPR’s potential for use in treating a complex genetic...his lab are researching a way to treat AD using CRISPR/Cas9. They are targeting the genes responsible ...
  18. Fluorescent Proteins 101: When GFP lets you down

    Type
    Blog Post
    Published
    Aug. 23, 2018, 12:05 p.m.
    ...can bind loci in the genome that are defined by a gRNA. Since Cas9 is a protein, a fusion with GFP allows...genomic loci in living human cells by an optimized CRISPR/Cas system." Cell 155.7 (2013): 1479-1491. PubMed...
  19. Prime Editing: Adding Precision and Flexibility to CRISPR Editing

    Type
    Blog Post
    Published
    Jan. 13, 2025, 9:49 p.m.
    ...Guide RNAs Visit our CRISPR topic page Learn the basics of CRISPR Download the CRISPR 101 eBook Resources...Resources on Addgene.org Read the CRISPR guide Find CRISPR plasmids by function Browse our entire plasmid ...variants in most cell types. But prime editing, a CRISPR technique developed in David Liu’s lab in 2019,...considerably more precision and flexibility to the CRISPR editing world. The approach, originally published... location The prime editor extends the reach of CRISPR genome editing, as it can edit near to or far from...brief discussion of some of these strategies in our CRISPR guide. Some examples include: TwinPE: two prime...sequences without double-strand DNA cleavage using CRISPR-directed integrases. Nature Biotechnology, 41(4...
Showing: 141 - 160 of 174 results