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We narrowed to 717 results for: CaS

Showing: 121 - 140 of 717 results
  1. CRISPR 101: Non-Homologous End Joining

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    Blog Post
    ...advantage to using the CRISPR/Cas system for genome engineering is the fact that Cas9 can be easily programmed...https://doi.org/10.1016/j.cell.2013.08.021 Waters CA, Strande NT, Pryor JM, Strom CN, Mieczkowski P, Burkhalter.... Repair of Cas9-induced breaks by NHEJ As illustrated below, NHEJ-mediated repair of Cas9-generated breaks...discuss NHEJ, and how it impacts what happens to Cas9-mediated DSBs in the genome. Non-homologous end...consequently the principal means by which CRISPR/Cas9-introduced breaks are repaired. The following factors...introduce indels. Given the end structure of the Cas9 DSB (blunt or near-blunt ends without nucleotide...population of cells constitutively expressing a targeted Cas9 should possess indels in the majority of their chromosomes...
  2. The 12 Days of CRISPR: 2021

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    Blog Post
    ...of CRISPR, Addgene gave to me: a miniature CRISPR-Cas system for mammalian use. On the second day of CRISPR...: efficient CRISPR editing with a hypercompact Cas12f1 and engineered guide RNAs. On the sixth day of ...programmed genome editing by a miniature CRISPR-Cas12f nuclease. On the eighth day of CRISPR, Addgene ...the eleventh day of CRISPR, Addgene gave to me: a Cas9 nickase 101 blog post.  On the twelfth day of CRISPR...
  3. Technologies Enabled by NanoLuc® Luciferase

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    Blog Post
    ...Yang, J. et al. (7) wished to trigger intracellular Ca++ release with an optogenetic receptor, melanopsin...composed of Venus fluorescent protein, the Troponin C Ca++ binding domain, and NanoLuc® Luciferase. CalFlux...stimulation with NanoLuc-based luminescence (BRET) Ca++ sensing. Nature Comm. 7, 13268. PubMed PMID: 27786307...endogenous tagged genes generated through CRISPR/Cas9 knock-in. Finally, NLuc is very inviting for endogenous...of photobleaching, autofluorescence, and, in the case of exciting cyan-excitable donors, phototoxicity...
  4. Treating Muscular Dystrophy with CRISPR Gene Editing

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    Blog Post
    ...Thakore PI, Majoros WH, Reddy TE, Gersbach CA. Multiplex CRISPR/Cas9-based genome editing for correction of...Ran FA, Yan WX, Asokan A, Zhang F, Duan D, Gersbach CA. In vivo genome editing improves muscle function ...Perez-Pinera P, Brown MT, Majoros WH, Reddy TE, Gersbach CA. Correction of dystrophin expression in cells from...long period of time. High fidelity Cas9s such as eSpCas9 and SpCas9-HF should be explored to reduce off-target...mutation in dystrophin exon 23. Long et al. used SpCas9 in conjunction with AAV9, whereas Nelson et al....al. and Tabebordbar et al. used the shorter SaCas9 with AAV8 and AAV9, respectively. Although each study... it’s important to realize that DMD is a simpler case than other genetic diseases we’d like to treat with...
  5. The 12 Days of CRISPR

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    Blog Post
    ... 11th day of CRISPR, Addgene gave to me: Cas-E-le-ven! (Cas11)🎵 On the 10th day of CRISPR, Addgene gave...🎵 On the 3rd day of CRISPR, Addgene gave to me: dCas9-based gene editing for cleavage-free genomic knock-in...day of CRISPR, Addgene gave to me: High-fidelity Cas13 variants for targeted RNA degradation with minimal...
  6. Making CRISPR Plasmids Using Fragmid

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    Blog Post
    ... it’s easy to switch out reporters, Cas proteins, guide cassettes, promoters, N’ and/or C’ terminus, and...specific to the type of module it is (Pol 2 protomer, Cas protein, ect...). Whatever individual components ...above selections.) CRISPR enzyme (Cas9 [sp], Cas9 [other], Cas12a, RNA-targeting) CRISPR mechanism ...destination vectors contain an ampicillin resistance cassette and an origin of replication, which are not schematized...using more than six or seven components — in most cases, that's making two or more plasmids — it may be ...
  7. Hot Plasmids and Viral Preps - January 2021

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    Blog Post
    ...Hypercompact genome editor CRISPR-Casɸ By Melina Fan The Doudna Lab adds to the CRISPR-Cas toolbox with their discovery...well-characterized Cas enzymes, which rely on multiple active sites. In addition, Casɸ has a minimal PAM...three Casɸ orthologs, Casɸ-1, Casɸ-2, and Casɸ-3. This system is notable for several reasons. Casɸ is only...70kDa, with a molecular weight roughly half of Cas9 or Cas12a. This is in part due to the fact that it only...demonstrate that CRISPR-Casɸ is active in vitro as well as in human and plant cells. Casɸ from Biggiephage...Blue-light inducible Cre for use in bacteria CRISPR-Casɸ mGold, a new yellow fluorescent protein New CRISPR...excision or insertion, inversion, translocation or cassette exchange. By utilizing recombinases to manipulate...
  8. Live and Let Dye: Self-Labeling Protein Tags

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    Blog Post
    ... dehalogenase that binds a synthetic chloralkane (CA) ligand. The current standard version known as HaloTag...TMP-tag) Few Easy HaloTag 295 Chloralkane (CA) Many Easy CLIP-tag 182 Benzylcytosine...) COS-7 cell ER labeled with Halo-Sec61β with SiR-CA (magenta) and outer mitochondrial membrane labeled...that your fusion protein is functional. In some cases, a small peptide tag like tetracysteine might be...
  9. A New Generation of Adenine Base Editors Improves Editing in Primary Human Cells

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    Blog Post
    ...impaired Cas protein (dCas or Cas nickase)  a guide RNA that targets the complex of TadA and dCas to the.... pyogenes Cas9 in the ABE complex with PAM-variant Cas9 proteins: the S. pyogenes NG-Cas9 (PAM: NG) to...constructs using a catalytically “dead” S. pyogenes Cas9 (dC9-ABE8.x-m/d). The dC9-ABE8.x-m/d constructs ...frequency more than 90% compared to ABE7.10. Choosing Cas9 proteins to increase the targeting scope of adenine... base editors The most commonly used S. pyogenes Cas9 requires the target site in the genomic DNA to contain... to create NG-ABE8.xm/d and the S. aureus Cas9 (PAM: NNGRRT) to create Sa-ABE8.x-m/d. With these variants...frequency over ABE7.10. The ability to use non-standard Cas9 in the ABE8 complexes enables a broader targeting...
  10. CRISPR Cheat Sheet

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    Blog Post
    ...However, prime editing and the identification of other Cas proteins continue to expand the targeting range. ...the gRNAs to cut particular DNA or RNA sequences. Cas9 is a very commonly used CRISPR nuclease. Note:...versions of CRISPR nucleases that can’t cut DNA (dCas9, for example) that are used to increase or decrease...
  11. Hot Plasmids - August 2020

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    Blog Post
    ...The MoClo CRISPR/Cas Toolkit for plants includes 95 plasmids consisting of CRISPR/Cas nucleases, base ...multiplexed gRNAs and of dCas9 fusions. The dCas-KRAB activator and the dCas-VPR repressor are introduced...an EGFP reporter. Expression of the dCas9-KRAB activator or dCas9-VPR repressor in hPSCs is also driven...piggyBac gRNA delivery and the all-in-one dCas9-KRAB and dCas9-VPR targeting plasmids can be found at Addgene...approaches rely on continual expression of both dCas9 and the gRNA. This expression can vary significantly... could quantify and track cells expressing both dCas9 and gRNAs. The multi-gRNA piggyBac vector ...plasmids for piggyBac gRNA delivery and the all-in-one dCas9 targeting plasmids! Hazelbaker et al., Sci Reports...
  12. Addgene’s Top 10 Blog Posts from 2014

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    Blog Post
    ...by our guest bloggers, the experts in the CRISPR/Cas field, have been extremely helpful for scientists...Plasmids 101: Yeast Vectors By Marcy Patrick CRISPR-Cas9 FAQs Answered! By Caroline LaManna Plasmids 101...
  13. 22 Hot Plasmid Technologies from 2014

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    ...with Addgene which allow scientists to use CRISPR-Cas technology to perform genome-wide knockout screens...these new CRISPR screening tools, see our CRISPR/Cas Plasmids: Pooled Libraries webpage or read our blog...Knockout Screening. Also, check out our updated CRISPR-Cas resources at www.addgene.org/CRISPR/ to browse CRISPR...information on CRISPR technology? See our improved CRISPR-Cas Guide. Wang et al., Science. 2014. Jan 3;343(6166...Guilinger et al., Nat Biotechnol. 2014..) Our CRISPR-Cas collection of plasmids updates frequently, so visit...plasmids available! Interested in purifying Cas9? Check out pET-28b-Cas9-His from Alex Schier's lab, designed...the lab of Yonglong Chen, pCS2-3xFLAG-NLS-SpCas9-NLS is a Cas9 expression plasmid that was used by Chen...
  14. The CRISPR Software Matchmaker: A New Tool for Choosing the Best CRISPR Software for Your Needs

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    ...For this, some online tools such as Cas-OFFinder will suffice. Cas-OFFinder provides a bare-bones data...prove somewhat useful for the latest NTT targeting Cas protein, Cpf1. Separately, on-target efficacy is ... tools yet. As a genome editing tool, the CRISPR/Cas9 technology has been surrounded by a whirlwind of...only one, or a subset of organisms. In only a few cases the software is organism agnostic. Most tools are...will find that some tools cater to specific use-cases through the way their algorithms were developed ...with R. For the Java enthusiasts, take a look at sgRNAcas9. Top tools for transferring CRISPR technology ... parasite Plasmodium falciparum using the CRISPR-Cas9 system." Nature biotechnology(2014). PubMed PMID...
  15. Controlling for Off-target Effects with a New Genome-wide CRISPR Screen Design

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    ...-wide profiling of off-target cleavage by CRISPR-Cas nucleases." Nature biotechnology 33.2 (2015): 187...PMC4320685. 3. Fu, Yanfang, et al. "Improving CRISPR-Cas nuclease specificity using truncated guide RNAs."...effects of gRNA and Cas9 expression, they fail to account for the effects of Cas9-induced dsDNA breaks... either stably expressed Cas9 or that had been lentiviral infected with Cas9. Validating the Library The...Genome-wide CRISPR/Cas9 screens are a high-throughput systematic approach for identifying genes involved.... Unanswered questions about genome-wide CRISPR/Cas9 screen design Are non-targeting guides an appropriate...single-guide studies? Many strategies exist for reducing Cas9 off-target effects, but most studies have focused...
  16. Fueled by Coffee at #SfN14

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    Blog Post
    ...I’ve seen evidence of the infiltration of CRISPR-Cas tools into neuroscience experiments. Speaking of...
  17. Optogenetics + CRISPR, Using Light to Control Genome Editing

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    Blog Post
    ...Proteins Switch Off CRISPR-Cas Systems.  Listen to the anti-CRISPR podcast segment Simply expressing anti-CRISPR... group of proteins that are able to block CRISPR-Cas systems. They have been used to block genome editing....2014.12.011 Polstein LR, Gersbach CA (2015) A light-inducible CRISPR-Cas9 system for control of endogenous...applied to create photoswitchable spCas9, dCas9, and S. aureus Cas9 (saCas9) proteins, showing the versatility...specificity as full-length Cas9 (flCas9). When triggered by blue light (470nm), paCas9-1 induced indel mutations...proteins from N. crassa Split Cas9, Split Cas9 nickase, Split dCas9 Genome editing by NHEJ and HDR, repression...Photoswitchable Cas9 Richter et al., 2016 tsRC9 RsLOV from R. sphaeroides Cas9, dCas9 Gene editing ...
  18. The Advances Behind The World's First Personalized CRISPR Treatment

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    Blog Post
    ...2013). Multiplex genome engineering using CRISPR/Cas systems. Science (New York, N.Y.), 339(6121), 819...evolution of an adenine base editor with improved Cas domain compatibility and activity. Nature Biotechnology... engineering Cas9 variants with a preference for specific PAMs. Though near-PAMless Cas9s can broadly ...editing was invented in David Liu’s lab by combining Cas9 DNA-targeting technology with a fused cytidine deaminase...effects in a variety of RNA transcripts independent of Cas9 targeting (Rees et al., 2019). The Liu lab characterized... and eight bases, close to the PAM recognized by Cas9. If no PAM is available nearby, a base editor may...Kleinstiver’s lab engineered new variants of S. pyogenes Cas9. While the wild-type enzyme requires a PAM sequence...
Showing: 121 - 140 of 717 results