Skip to main content

We narrowed to 159 results for: crispr grnas

Showing: 41 - 60 of 159 results
  1. What's New in CRISPR - Spring 2019

    Type
    Blog Post
    Published
    March 21, 2019, 12:47 p.m.
    ...anti-CRISPR expression plasmids CRISPR-based method for cell lineage tracing Valcyrie is a CRISPR-based...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...series will help you find new CRISPR tools for your research.     CRISPR-Cas12b for human genome editing...editing plasmids String assembly gRNA cloning (STAgR) String assembly gRNA cloning (STAgR), developed by ...single step gRNA multiplexing system that generates vectors containing high numbers of gRNAs in one overnight...advantage that CRISPR efficiency can be controlled by manipulating complementarity between the gRNA and target...
  2. Overcoming the AAV Size Limitation for CRISPR Delivery

    Type
    Blog Post
    Published
    Sept. 16, 2020, 1 p.m.
    ... Originally published Jul 14, 2015 and last updated Sep 16, 2020 by Beth Kenkel.  CRISPR genome editing...toxicity. More AAV-based CRISPR systems Smaller Cas proteins SaCas9 isn't the only CRISPR enzyme that’s small...about Cas9 Variants and the Expanded CRISPR Toolbox Read about CRISPR enzyme Cpf1 Read our Introduction ...Resources on Addgene.org Check out our CRISPR Guide Find CRISPR Plasmids ... packaging Streptococcus pyogenes (SpCas9) and a gRNA together (~4.2 kb) into an AAV vector is challenging...Zhang's group previously packaged Cas9 and multiple gRNAs into separate AAV vectors, increasing overall packaging...regulatory sequences while still fitting Cas9 and its gRNAs into one AAV, Cas9 must be made smaller. Previous...
  3. The Twelve Days of CRISPR

    Type
    Blog Post
    Published
    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... third day of CRISPR, Addgene gave to me: tips and tricks for designing gRNAs for CRISPR editing. On the... day of CRISPR, Addgene gave to me: CRISPR methods for bacteria.  On the eighth day of CRISPR, Addgene...delivery of CRISPR/Cas9.  On the twelfth day of CRISPR, Addgene gave to me: multiplexed gRNAs.  We hope ...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...the fourth day of CRISPR, Addgene gave to me: ways to use optogenetics to control CRISPR editing.  On the...
  4. Nanoblades: Tiny CRISPR Ninjas for Genome Editing Difficult Cells

    Type
    Blog Post
    Published
    Sept. 26, 2019, 12:50 p.m.
    ...are fused to the MLV Gag in place of SpCas9. gRNA A gRNA targeting a DNA sequence of interest is expressed...Nanoblades to Existing CRISPR Delivery Methods When compared head-to-head with existing CRISPR delivery technologies...cells along with the gRNA and Cas9. An “all-in-one” Nanoblades which carries a gRNA, Cas9, and a HDR donor...delivery Learn about CRISPR delivery methods for mammalian cells Browse our CRISPR 101 blog post Resources...Addgene.org Check out our comprehensive CRISPR guide Find CRISPR plasmids and resources Learn about viral...CRISPR is a simple and versatile tool for genome engineering, but its utility is dependent on its ability...ability to infiltrate cells. Options for CRISPR delivery include plasmid transfection, RNP electroporation...
  5. What's New in CRISPR - November 2021

    Type
    Blog Post
    Published
    Nov. 18, 2021, 2:15 p.m.
    ...blog Download the CRISPR 101 eBook Find our CRISPR 101 blog posts Read our CRISPR cheat sheet Resources...our CRISPR guide Find CRISPR plasmids by function Find recently deposited plasmids Topics: CRISPR, Other...edition of “What’s New in CRISPR” - where we highlight a few of the newest CRISPR plasmids available at Addgene... read more content related to CRISPR technology, subscribe to our CRISPR blog content.   In this post ... Miniature CRISPR-Cas systems SEND plasmids Prime editing improvements Miniature CRISPR-Cas systems ...extra-long gRNA for its small size. They were able to increase activity and decrease the gRNA size by intensively... intensively remodelling the gRNA scaffold through five rounds of gRNA engineering.  They did not modify...
  6. What's New in CRISPR - March 2020

    Type
    Blog Post
    Published
    March 10, 2020, 1:15 p.m.
    ...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...Caulobacter crescentus Multiplexed gRNA for human pluripotent stem cells CRISPR-based DNA demethylation Optogenetic...fluorescently-labeled gRNA multiplex. Read the paper in Scientific Reports Find the plasmids Enhanced CRISPR-based ...Resources on Addgene.org Read our CRISPR guide Find CRISPR plasmids by function Find recently deposited plasmids...that this blog series will help you find more new CRISPR tools for your research! This time: Optogenetic...in mBio Find the CRISPRi plasmids A multiplexed gRNA piggyBac transposon system for human pluripotent...
  7. CRISPR 101: Cytosine Transversion Editors

    Type
    Blog Post
    Published
    March 25, 2025, 1:15 p.m.
    ...tip! In CRISPR, the non-target strand is the DNA strand that does not base pair with the gRNA. Base editors...blog CRISPR 101: Cytosine and Adenine Base Editors Read about four base editor reporters CRISPR 101: ...Editing CRISPR 101: Cas9 Structural Biology Additional resources on Addgene.org Browse CRISPR plasmids...editing Get a broad overview with our CRISPR Guide Check out our CRISPR 101 ebook ...The first base editors revolutionized CRISPR gene editing. Cytosine base editors (CBEs) and adenine base...base editing tools First, let’s briefly review how CRISPR-derived base editing works in general. Base editors... on the outside of the enzyme. Figure 2: CRISPR R-loop. Created with BioRender.com. Base editors...
  8. Isolating Genomic Regions of Interest with the CRISPR System

    Type
    Blog Post
    Published
    May 30, 2019, 12:44 p.m.
    ...blog Download the CRISPR 101 eBook Find our CRISPR 101 blog posts Read our CRISPR cheat sheet Resources... a genomic region of interest targeted by a gRNA. CRISPR-mediated purification of a specific genomic ...genomic region using the CRISPR system, consisting of dCas9 and targeting gRNA, to identify molecular interactions...interest can be targeted using a gRNA, which can easily be cloned into a gRNA expression plasmid. Experimental...this form, the CRISPR complex, consisting of a recombinant dCas9 protein and synthetic gRNA, is incubated... with dCas9 and a targeting gRNA. One such example by the Xu lab is CRISPR affinity purification in situ...Resources on Addgene.org Read our CRISPR guide Find CRISPR plasmids by function Find recently deposited plasmids...
  9. CRISPR 101: Targeting Non-Coding RNAs with CRISPR/Cas9

    Type
    Blog Post
    Published
    Nov. 14, 2024, 2:15 p.m.
    ...Resources on addgene.org Addgene's CRISPR Guide Addgene's CRISPR 101 eBook CRISPR resources More resources on... for us, CRISPR is an incredibly versatile system that can be tweaked to target ncRNA. CRISPR/Cas9 techniques...Bester 2021.    Alternative CRISPR systems for targeting ncRNAs While CRISPR/Cas9 has proven to be an extremely...If the CRISPR/Cas9 system is not effective for your experiments, there are plenty of other CRISPR-based... permanently altering the DNA, CRISPR interference (CRISPRi) and CRISPR activation (CRISPRa) are powerful...many protein-coding genes thanks to systems like CRISPR/Cas9 that allow them to manipulate full genes and... Knock-out: Targeting short vs. long ncRNAs The CRISPR/Cas9 system is often used to knock-out, or permanently...
  10. Human Germline Editing Using CRISPR

    Type
    Blog Post
    Published
    Aug. 10, 2017, 2:19 p.m.
    ...Once with CRISPR Resources on Addgene.org Browse All CRISPR Plasmids Check Out Our CRISPR Guide Pages... applicability of CRISPR germline editing. Nature News mentions that the MYBPC3 gRNA used in the study... as on-target editing rates vary widely from gRNA to gRNA, it’s unclear where this study would fall in...Addgene Blog Check out Our New CRISPR Topic Page Read about High Fidelity CRISPR Variants Target Multiple Genes... updated in response to this paper. Any hint of CRISPR editing in human embryos has been met with a storm...talk about, as it represents another step towards CRISPR germline editing of disease-causing mutations. ...designed plasmids containing Cas9 and two different gRNAs, and electroporated them with an ssODN repair template...
  11. CRISPR Challenges: Standardization and Homology Directed Repair

    Type
    Blog Post
    Published
    Feb. 14, 2018, 2:36 p.m.
    ... Design your gRNA for CRISPR Genome Editing Other resources and publications CRISPOR gRNA design tool ...mentioned, John Doench’s How to Design your gRNA for CRISPR Genome Editing, gets over 4,000 views a month...this basic concept of gRNA design is still challenging for researchers using CRISPR, and that standardizing...challenges of DNA repair (with bonus gRNA design resources.) Subscribe to CRISPR updates on our blog to keep current...Alt-NHEJ), has been harnessed for CRISPR knock-in applications. CRISPR 101: Targeting RNA with Cas13a (...standardizing and improving the gRNA design process and rules for various applications is necessary going forward...forward. The standardization of CRISPR methods was a common thread at the meeting. The new Somatic Cell ...
  12. Fluorescent CRISPR Reporters: SRIRACCHA and GEmCherry2

    Type
    Blog Post
    Published
    May 26, 2020, 1:15 p.m.
    ... CRISPR 101 blog posts Resources on Addgene.org Read our CRISPR guide Find CRISPR plasmids for your ...If you’re using CRISPR to make a genome edit, how do you know if your CRISPR experiment was successful... time consuming.   As Cas9/gRNA activity is crucial for successful CRISPR editing experiments, there ...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...all of our CRISPR blog posts Find more about fluorescent proteins Get a refresher on CRISPR with our CRISPR...other molecular cloning techniques to determine CRISPR/sgRNA efficiency of an experiment and confirm the...
  13. How to Keep a Lab Notebook for Bioinformatic Analyses

    Type
    Blog Post
    Published
    June 2, 2016, 2:30 p.m.
    ...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 ...
  14. Controlling for Off-target Effects with a New Genome-wide CRISPR Screen Design

    Type
    Blog Post
    Published
    Sept. 13, 2018, 1:55 p.m.
    ...genome-wide CRISPR knockout screen to analyze the following unanswered questions about CRISPR screen design...genome-wide CRISPR/Cas9 screen design Are non-targeting guides an appropriate control? Many CRISPR screens...new approach to genome-wide CRISPR screen design.   Bassik lab’s CRISPR knockout libraries Overview...conditions for CRISPR knockout screens, the Bassik lab created a human knockout library that has 10 gRNAs per gene...expected to be identified in a CRISPR knockout screen. Improving the Design of CRISPR Knockout Screens Before...Short gRNAs have lower off-target cutting and similar on-targeting cutting as full-length gRNAs Lastly...conduct genome-wide screens with CRISPR/Cas9 Review the basics of CRISPR with this cheat sheet Read our ...
  15. CRISPR 101: Homology Directed Repair

    Type
    Blog Post
    Published
    Jan. 26, 2023, 2:15 p.m.
    ...principles driving CRISPRs and genome editing technology. Links: Zhang Lab’s CRISPR FAQs CRISPR forum moderated...limitations of ssODNs is Easi-CRISPR (Quadros et al., 2017). Easi-CRISPR in vitro transcribes RNA encoding... for more in-depth information on HDR and CRISPR. Our CRISPR 101 series was designed to help explain the...Increased Efficiency of CRISPR/Cas-mediated Transgenesis (2018). Pubmed. CRISPR References: Genome engineering... to CRISPR applications. Singh P, et al. Genetics 114.169771; (2014). PubMed. The Use of CRISPR/Cas9...Efficiency for CRISPR Editing in Human Cells Resources on Addgene.org Browse All CRISPR Plasmids Find...Find Validated gRNAs for Your Next Experiment Check out our CRISPR Guide   ...
  16. Cpf1: A New Tool for CRISPR Genome Editing

    Type
    Blog Post
    Published
    Oct. 14, 2015, 2:30 p.m.
    ...Addgene Find CRISPR plasmids at Addgene Read Addgene's CRISPR Resource Guide View Other CRISPR Blog Posts...more about Cpf1 and check out our CRISPR guide for a refresher on CRISPR/Cas9.  Figure 1: Cpf1 is...over Cas9 Type II CRISPR systems based on Cas9 were thought to be the simplest CRISPR systems and the easiest...tolerate mismatches at gRNA positions 1, 8, 9, and 19-23. Accordingly, the 3’ end of the gRNA target sequence...discovery of this type V CRISPR system proved we had a lot more to learn about CRISPR biology. Later work,...called Cas12a. In 2015, Zetsche et al. added to the CRISPR toolbox with their characterization of two Cpf1...is a single RNA-guided endonuclease of a class 2 CRISPR-Cas system. Figure from Zetsche et al., 2015. ...
  17. CrispyCrunch: High-throughput Design and Analysis of CRISPR+HDR Experiments

    Type
    Blog Post
    Published
    Feb. 7, 2019, 2:16 p.m.
    ... our CRISPR 101 blog posts Learn about some considerations when designing gRNAs Find other CRISPR software...Addgene.org Find CRISPR plasmids and resources Download the CRISPR eBook Read our CRISPR guide  ...performed because weak gRNAs (CFD < 20) bind almost not at all, and strong gRNAs (CFD > 80) bind almost...announce the general availability of new a tool for CRISPR scientists––CrispyCrunch! CrispyCrunch is a web... helps scientists design and analyze batches of CRISPR samples. We invite you to jump in and try it out...pre-existing guides for primer design. The ecosystem of CRISPR tools Before deciding to build our own tool, we...Cambrian-like explosion of software tools accompanying the CRISPR revolution. (See omictools for even more.) However...
  18. Generating Mouse Models Using CRISPR/Cas9

    Type
    Blog Post
    Published
    July 12, 2016, 2:30 p.m.
    ...Crossing Mice. My first CRISPR mouse experiment Everything changed with the advent of CRISPR in 2013 (Cong et...editing the genome, the CRISPR/Cas system makes use of 3 components, a guide RNA (gRNA) of about 125 nt that...for knock in models). CRISPR mouse model basics To create a mouse model, the gRNA, Cas9, and donor oligonucleotide...using CRISPR for mouse genome engineering From the very start, generating mouse models using CRISPR is easier...Recent Post for Tips on CRISPR Gene Editing in Mice Disadvantages of using CRISPR for generating mouse models...remains to be seen whether CRISPR is as robust as conventional gene targeting. CRISPR tools were recently used...improvement. Also when working with CRISPR, one must beware that not all gRNAs are created equal. Some work ...
  19. CRISPR Between the Genes: How to Experiment with Enhancers and Epigenomics

    Type
    Blog Post
    Published
    Aug. 9, 2016, 2:30 p.m.
    ...Addgene Blog Catch Up on Your CRISPR Background with CRISPR 101 Learn about CRISPR Delivery Methods Validate...Addgene.org Find CRISPR Plasmids for Your Research Check out Our CRISPR Guide Find Validated gRNAs ...sites 2. Design a CRISPR screen to target and disrupt the NANOG enhancers 3. CRISPR out the enhancers ...design a CRISPR screen to disrupt these enhancers. The third and final step is to conduct our CRISPR screen...RNAs (gRNAs) across the population. Recall that guide RNAs are the targeting mechanism for CRISPR. Therefore...embryonic stem cells, and conclude with a targeted CRISPR screen that can disrupt these enhancers. A real-world...have more to say about clinical applications of CRISPR in the next section. In order to denote the NANOG...
  20. Easi-CRISPR: Generating Knock-In and Conditional Mouse Models

    Type
    Blog Post
    Published
    April 5, 2018, 12:42 p.m.
    ...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...wild type gRNA target site and adjacent PAM. Your knock-in design may naturally remove the gRNA sequence...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...
Showing: 41 - 60 of 159 results