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Showing: 41 - 60 of 454 results

  1. CRISPR-mediated Plant Base Editors

    Type
    Blog Post
    Published
    Jan. 3, 2019, 1:35 p.m.
    ...Addgene.org Find all CRISPR plasmids and resources at Addgene Find CRISPR base editors Find CRISPR plasmids for...base. If you heard about CRISPR, one question probably comes to mind: can CRISPR be applied to fix the defective..., Y. Multiplex CRISPR-mediated base editing in rice. In Genome Engineering: The CRISPR-Cas Revolution,... to facilitate repair. Since the development of CRISPR-mediated base editing (BE), these types of repairs...et al., 2016 and Nishida et al., 2016) invented CRISPR-base editors by tethering cytosine deaminase with...adenine (A) to a guanine (G)? You may wonder if a CRISPR-base editor can perform this change. However, there... Bastian Minkenberg, and Yinong Yang. "Boosting CRISPR/Cas9 multiplex editing capability with the endogenous...

  2. What's New in CRISPR - Winter 2018

    Type
    Blog Post
    Published
    Dec. 18, 2018, 1:17 p.m.
    ...Cas14 plasmids Anti-CRISPR proteins for optogenetic control of CRISPR-Cas9 Anti-CRISPR proteins that inhibit...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... anti-CRISPR proteins for optogenetic control of CRISPR-Cas9. By combining AcrIIA4, a Streptococcus pyogenes...Resources on Addgene.org Read our CRISPR guide Find CRISPR plasmids by function Find recently deposited plasmids...hope that this blog series will help you find new CRISPR tools for your research.     Improved nucleic...inhibit type II CRISPR systems were recently discovered in 2017. Now Dominik Niopek’s lab has adapted anti-CRISPR...

  3. CRISPR 101: Multiplex Expression of gRNAs

    Type
    Blog Post
    Published
    Sept. 10, 2020, 11:45 a.m.
    ...Tsang. CRISPR makes it easy to target multiple loci - a concept called multiplexing. Since CRISPR is such...the genome to modify, whether it be editing CRISPRi, CRISPRa, or base editing. Multiplexing gRNAs: the...Addgene.org Catch Up on Your CRISPR Background with Our Guide Pages Find CRISPR Plasmids for Your Research...components into a destination vector. The first step in CRISPR/Cas9 Golden Gate multiplexing is to clone the oligonucleotides...of genome editing events. Yamamoto Lab Multiplex CRISPR/Cas9 Assembly Kit: This kit is built for serious...Plasmid: This system allows you to assemble type II-A CRISPR arrays for dCas9-based transcriptional repression...plasmid contains a nontargeting spacer flanked by two CRISPR repeats. The spacer can be digested using BsaI,...

  4. CRISPR 101: RNA Editing with Cas13

    Type
    Blog Post
    Published
    July 31, 2020, 12:30 p.m.
    ... out our CRISPR Featured Topic Page Learn about RNA Targeting with Cas13a Learn about CRISPR DNA Base ...Resources on Addgene.org Browse All CRISPR Plasmids Check out our CRISPR Guide Pages ...enzymes are quickly becoming major players in the CRISPR field. Just a year after Feng Zhang’s lab identified...C2c2) (Abudayyeh et al., 2016) as a RNA-targeting CRISPR enzyme, they adapted Cas13b for precise RNA editing...programmable A to I (G) replacement) is the first CRISPR tool for RNA editing. Two years after that, the... targeting work with Cas13, REPAIR is the first CRISPR-based system to enable precise RNA editing. The...multiplexed manner to edit multiple RNAs. It’s clear that CRISPR RNA editors will open new doors for scientific ...

  5. CRISPR 101: Epigenetics and Editing the Epigenome

    Type
    Blog Post
    Published
    June 24, 2020, 5:45 p.m.
    ...deacetylases. CRISPR and epigenetics As with many TALEN-based technologies, the advent of CRISPR has made .... For an up-to-date list of CRISPR epigenetic tools, check out our CRISPR Epigenetics resource. Transcriptional...potential advantage of CRISPR epigenetic tools is their persistence and inheritance. CRISPR activators and repressors...modification at specific genomic loci is possible using CRISPR, and Addgene has a number of tools for this purpose...targeted to specific DNA sequences. Non-editing CRISPR applications direct catalytically dead dCas9 fused...double strand breaks. Below you'll find some of the CRISPR-based epigenetic modifiers available from Addgene...Epigenetic modification is certainly not the only CRISPR-based technology designed to alter gene expression...

  6. 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...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...As Cas9/gRNA activity is crucial for successful CRISPR editing experiments, there was a real need in the...activity assays. Recently scientists have created CRISPR fluorescent reporter assays to quantify targeted.... In this blog we will focus on two fluorescent CRISPR reporter methods, SRIRACCHA and GEMCherry2. We ...

  7. 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...editing CRISPRi in Caulobacter crescentus Multiplexed gRNA for human pluripotent stem cells CRISPR-based...editor plasmids CRISPRi in Caulobacter crescentus Figure 1: Serial dilutions of CRISPRi in Caulobacter...human pluripotent stem cells. Previously, CRISPRi or CRISPRa depended on continued expression of dCas9...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...

  8. CRISPR 101: Ribonucleoprotein (RNP) Delivery

    Type
    Blog Post
    Published
    Sept. 6, 2018, 12:02 p.m.
    ...process known as CRISPR-EZ (CRISPR RNP Electroporation of Zygotes) (Chen et al. 2016). For CRISPR experiments...Considerations for RNP-mediated CRISPR experiments While using Cas9-gRNA RNPs for CRISPR experiments can reduce...the Addgene Blog Subscribe to CRISPR blog posts Learn about other CRISPR delivery techniques Find tips...Addgene.org Browse all CRISPR plasmids Find validated gRNAs Check out our CRISPR guide page ...CRISPR has greatly enhanced the ability of scientists to make genomic alterations, bringing about a revolution...techniques rapidly being developed. Performing a CRISPR experiment requires delivery of, at minimum, two... the current genome engineering applications of CRISPR including: generating single or multi-gene knockouts...

  9. New CRISPR Tools: Cas7-11 and PASTE

    Type
    Blog Post
    Published
    Feb. 17, 2022, 2 p.m.
    ... and Flexibility to CRISPR Engineering CRISPR 101: RNA Editing With Cas13  CRISPR Cheat Sheet Resources...RNA or DNA via a CRISPR mechanism. The weird black pellet's DNA yielded a new CRISPR effector protein ...has dual activities: processing pre-CRISPR RNA into mature CRISPR RNA and cleaving RNA at positions defined...DNA with CRISPR-driven precision into a genome, can be considered the fourth generation of CRISPR, one which... part of any revolutionary discovery, including CRISPR, is turning potential into impact. In molecular...been working on two tools that expand and exploit CRISPR, both of which we're featuring in today's blog....their quest to find, characterize, and develop new CRISPR systems and technologies, the AbuGoot lab often...

  10. 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 ...Pyhtila One drawback to the commonly used S. pyogenes CRISPR/Cas9 system is that it is too large to be effectively...provides a solution to this problem. A miniature CRISPR-Cas system for mammalian use Stanley Qi’s lab has...

  11. 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...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. ...mosaicism. To circumvent this problem, they co-injected CRISPR machinery with sperm into M phase oocytes, thus...whole genome sequencing in selected control and CRISPR-Cas9 injected embryos. In all cases, they did not... not observe off-target effects attributable to CRISPR editing. Conclusions & implications One striking...

  12. Multiplex Genome Editing with CRISPR-Cpf1

    Type
    Blog Post
    Published
    May 9, 2017, 2:12 p.m.
    ...Multiplex gene editing with CRISPR-Cpf1 is one of the latest developments in CRISPR technologies.  It’s a simple... Cpf1: A New Tool for CRISPR Genome Editing Which Cas9 Do I Choose for My CRISPR Experiment A Match Made...Made in Heaven: CRISPR/Cas9 and AAV Resources on Addgene.org Browse Our CRISPR Multiplexing Resources...Resources Find CRISPR Plasmids for Your Research Catch up on Your CRISPR Background with Our Guide Pages ...also called Cas12a. There’s a new development for CRISPR-Cpf1 genome editing!  A recent paper from Feng ...Cpf1, check out this blog post or see Addgene's CRISPR guide page for a review of Cas9.  For a brief comparison...table below. Table 1. Comparing the Cas9 and Cpf1 CRISPR Nucleases   Cas9 Cpf1 Components crRNAtracrRNACas9...

  13. Tips for CRISPR Gene Editing in Mice

    Type
    Blog Post
    Published
    June 28, 2016, 10:59 a.m.
    ...Design You gRNA Find CRISPR Plasmids for Use in Mammalian Cells Check out All of Our CRISPR Resources  ...contributed by guest blogger Samantha Young. The use of CRISPR/Cas9 for gene editing has expanded since its adaptation...et al., 2014). There are several variants of the CRISPR/Cas9 system floating around, and many pre-designed...running as soon as possible! Selecting your target CRISPR/Cas9 is often used to study the biology surrounding...as well). Therefore, if you’ve started down the CRISPR path, you’ve probably got a gene you’d like to ...tools that do it for you. One such option is the CRISPR Design tool supplied by the Zhang lab. This simple... the available gRNA targets in that region. The CRISPR Software Matchmaker can be used to determine the...

  14. CRISPR 101: Off-Target Effects

    Type
    Blog Post
    Published
    Feb. 8, 2024, 2:15 p.m.
    ...on Addgene.org CRISPR software and resources Addgene CRISPR Guide Addgene’s CRISPR 101 eBook More ...the Addgene blog CRISPR 101: Which Cas9 do I choose for my CRISPR experiment? CRISPR 101: Cas9 The Other...for unintended consequences in an experiment. For CRISPR work, this often means DNA cleavage at unanticipated...will discuss when off-targets can be an issue in CRISPR, how to predict and minimize them, and ways to ...t be avoided. What are off-target effects? The CRISPR-Cas system is an RNA-guided nuclease that either...sequence similarity to the on-target site. When a CRISPR-Cas system localizes to unintended sites and performs...all. Let’s consider several scenarios below for a CRISPR experiment which involves making specific knock-out...

  16. CRISPR 101: Cytosine Transversion Editors

    Type
    Blog Post
    Published
    March 25, 2025, 1:15 p.m.
    ...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...stretch of ssDNA created by Cas9 binding. Pro tip! In CRISPR, the non-target strand is the DNA strand that does...

  17. Making CRISPR Plasmids Using Fragmid

    Type
    Blog Post
    Published
    Aug. 29, 2024, 1:15 p.m.
    ....) CRISPR enzyme (Cas9 [sp], Cas9 [other], Cas12a, RNA-targeting) CRISPR mechanism (KO, CRISPRa, CRISPRi...If you’ve ever been looking for just the right CRISPR vectors on Addgene and found instead ones that ... for a quick, plug-and-play approach to cloning CRISPR vectors (McGee et al., 2024). It reduces the amount... represents a class of components, such as your CRISPR enzyme or Pol 2 promoter. The options available...the Fragmid system takes the heavy lifting out of CRISPR vector design, making it easier to get the vectors...Mammalian Lentivirus pRDA_722 (CMV-driven; lentiCRISPRv2-based; preferred over 512) Mammalian ...value for the user. Let's walk through designing a CRISPR vector the Fragmid way!    Figure 1: Selecting...

  18. Twenty Years of Addgene Sharing: CRISPR

    Type
    Blog Post
    Published
    April 18, 2024, 1:15 p.m.
    ...all of biology…CRISPR.  Since the discovery of CRISPR, the labs that developed CRISPR tools were committed...Diverse CRISPR Plasmids by Addgene. The CRISPR Journal, 6(6), 493–501. https://doi.org/10.1089/crispr.2023.0059...who have deposited CRISPR plasmids (Figure 1C), and the cumulative number of CRISPR libraries Addgene ...labs joining the Addgene CRISPR community, with approximately 100 new CRISPR depositors each year.    ... Figure 1: Addgene CRISPR distribution and deposits. (A) Cumulative CRISPR plasmids shipped by year...laboratories that have deposited CRISPR plasmids by year. (D) Cumulative CRISPR pooled libraries shipped by year...almost 18,000 CRISPR plasmids in our repository, and we have shared almost 300,000 CRISPR plasmids and ...

  19. Progress Towards a PAM-Free CRISPR

    Type
    Blog Post
    Published
    March 7, 2024, 2:39 p.m.
    ...SpG Cas9  NG  - SpRY nuclease  C to T Base Editor SpRY A to G Base Editor SpRY   NYN/NRN NYN is ...engineering, they developed the SpRY Cas9 variant (Walton, et. al, 2020). SpRY uses NRN PAMs and is capable...SpCas9. SpRY can also edit NYN PAMs, but with less efficiency and less reliability. Notably, the SpRY variant...gkab507   Resources on Addgene.org Addgene’s CRISPR Guide CRISPR Plasmids and Resources Resources on the ...Cas9 xCas9: Engineering a CRISPR Variant with PAM Flexibility History of CRISPR Cas – A Tale of Survival...sequence for your genome engineering experiment. With CRISPR entering the clinic for correction of disease-causing...landscape. The need for PAM-less editing   Guides for CRISPR are typically selected by the ‘quality’ of the ...

  20. 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...Homology directed repair and genome engineering CRISPR-Cas9 has revolutionized the genome engineering ...
Showing: 41 - 60 of 454 results