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We narrowed to 92 results for: AAV Cas9

Showing: 41 - 60 of 92 results
  1. Adenoviral Delivery of CRISPR/Cas9 Aims to Expand Genome Editing to Primary Cells

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    ...capacity larger than AAV vectors. This capacity is large enough to carry the Cas9 gene and a gRNA expression...DNA Adenoviral CRISPR/Cas9 genome editing tools can also be used to deliver Cas9 and DNA templates in ... CRISPR/Cas9 research! To find more information about the adenoviral delivery of CRISPRS/Cas9 using the...Genome Editing of Pten by CRISPR/Cas9 in Mouse Liver in Spite of Cas9-Specific Immune Responses. Human... out the plasmids at Addgene: pAdSh.PGK.Cas9 (expresses S. pyogenes Cas9 from the PGK promoter) and U6...left) and targeted DNA knock-in (right) by CRISPR/Cas9. Adenoviral CRISPR vectors (left) or CRISPR vectors...transduced to target cells. Within target cells, Cas9 machinery is transiently expressed and binds to ...
  2. Cpf1: A New Tool for CRISPR Genome Editing

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    ...needed by Cas9 for cleavage. In certain cases, Cpf1 may be better suited for genome editing than Cas9 - read...CRISPR system. Like Cas9, Cpf1 contains a RuvC-like endonuclease domain, but it lacks Cas9’s other HNH endonuclease...Potential advantages of Cpf1 over Cas9 Type II CRISPR systems based on Cas9 were thought to be the simplest...than that of the widely used SpCas9 and comparable to SaCas9. As seen with Cas9 orthologs, Cpf1 efficiency...rate is similar to that of high fidelity Cas9s eSpCas9 and SpCas9-HF1. Both AsCpf1 and LbCpf1 ribonucleoproteins...needed for Cas9 function. Since both Cpf1 and its guide RNAs are smaller than their SpCas9 counterparts...display cleavage activity in mammalian cells. Like Cas9 nucleases, Cpf1 family members contain a RuvC-like...
  3. DAP arrays for multiplex gene editing

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    ... found led them back towards Cas9 fused base editors (nCas9-BE), as Cas9 is mechanistically more favored...also exhibited reduced Cas9-dependent off-target editing and do not cause higher Cas9-independent off-target...leading the edge of the precision gene editing. CRISPR-Cas9, the key component to enable efficient base editing...organisms and has previously been used for multiplex Cas9-nuclease editing. Typically, a single array encoding...elements for deliveries via adeno-associated virus (AAV) and lentivirus, demonstrating simultaneous editing...would independently generate multiple gRNAs for nCas9-BE, or any other kinds of CRISPR tools, without ...
  4. CRISPR 101: Anti-CRISPR Proteins Switch Off CRISPR-Cas Systems

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    ...et al., 2016). While Streptococcus pyogenes Cas9 (SpyCas9) is the most used and well studied CRISPR system... study, the labs found that anti-CRISPR prevents Cas9 activity in HEK293 by reducing editing from ~30%...interact with CRISPR-Cas systems such as Cascade-Cas3, Cas9, Cas12, and Cas13 (Marino et al., 2020). Some Acr...ways: Inhibit DNA binding Example:  AcrIIA4 blocks Cas9’s interaction with the PAM site (Dong et al., 2017... crRNA loadingExample: AcrIIC2 interactions with Cas9 interferes and prevents the correct assembly of ... AcrIIC1 binds to the HNH endonuclease domain of Cas9 and prevents target DNA cleavage (Harrington et ... Doudna lab found that at least 50% of on-target Cas9 edits happens within the first six hours. When added...
  5. Meet the New Addgene Board Members!

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    ...project to develop an AAV-based COVID-19 vaccine.  Vandenberghe’s work with AAVs led to many interactions...Therapeutics and is an Addgene depositor. KSQ uses a CRISPR-Cas9 platform to systematically test the function of ...was compelled to be part of that.” He’s deposited AAV constructs for gene delivery. In 2018, he interviewed...
  6. 10 Great Guest Posts We're Thankful For

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    ...action. AAV: A Versatile Viral Tool for Gene Expression in Mammals Adeno-associated viruses (AAVs) are commonly...Cepko’s Lab at Harvard Medical School describes how AAVs function and indicates important things to consider... editing - all influenced by an understanding of Cas9 biophysics! Casilio: An Adaptive, Multitasking “... system that uses modular RNA binding proteins, dCas9, and a modified gRNA to direct a variety of customizable...
  7. CRISPR Activation: A Practical Guide

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    ... Has Been Used with AAV Resources on Addgene.org Find Cas9 Activators Find Cas9 Repressors Catch Up ...CRISPR/Cas9 is an enormously plastic tool and has taken the scientific world by storm. While Cas9 has been...required for Cas9-based activation. CRISPRa for genome-wide studies One of the best uses for Cas9 activators...context of the gene, Cas9 activators efficiently solve these problems.   Which Cas9 activator should I ...Best Cas9 Variant for Your Next Experiment Find out More about Genome-wide Screens with CRISPR/Cas9 Learn...there has also been significant work on constructing Cas9 transcriptional activators. These constructs allow...upregulation of essentially any gene by fusing mutants of Cas9 deficient in DNA cutting activity to a transcriptional...
  8. New CRISPR Tools: Cas7-11 and PASTE

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    ...compatible with both AAV and adenovirus templates. The system, which is larger than Cas9, can also be used...systems have enzymes small enough to fit into a dual AAV system, albeit with lower knockdown efficiencies....PASTEsystem involves insertion of landing sites via Cas9-directed reverse transcriptases, followed bylanding...bylanding site recognition and integration of cargo via Cas9-directed integrases.   Use PASTE can be delivered...
  9. Treating Muscular Dystrophy with CRISPR Gene Editing

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    ...long period of time. High fidelity Cas9s such as eSpCas9 and SpCas9-HF should be explored to reduce off-target...culture, but Ran et al. have shown that CRISPR and AAV can be used together for postnatal genome editing...facets of CRISPR DMD therapy. Long et al. show that AAV-CRISPR does not cause obvious germline modification...especially stem cells 2. Remove any immunogenicity of the AAV vector Once delivery has been optimized, it’s important...Majoros WH, Reddy TE, Gersbach CA. Multiplex CRISPR/Cas9-based genome editing for correction of dystrophin... vivo genome editing using Staphylococcus aureus Cas9. Nature. 2015 Apr 9;520(7546);186-91. doi: 10.1038...Tabebordbar et al. used the shorter SaCas9 with AAV8 and AAV9, respectively. Although each study used slightly...
  10. Hot Plasmids - February 2022

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    ...CRISPR-based genetic screening methods have primarily used Cas9 to knock out genes, researchers at the Genetic Pertubation... a single expression cassette is advantageous to Cas9’s larger expression requirements (Figure 1), but... guides. While two guides require two arrays for Cas9, two guides can be streamlined into a single array...-wide library capable of performing similarly to Cas9 screens in a compacted library. Overall, Cas12a’...CRISPR-Cas effectors and fusion proteins, such as Cas9 and Cas12a, creates challenges for in vivo delivery...529 amino acids, less than half the size of either Cas9 or Cas12a. Despite its small size, CasMINI is comparable...off-target effects, yet small enough to be packaged in AAV. A dCasMini-mediated adenine base editor allows for...
  11. 27 Hot Plasmids from 2016

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    ...pDGE Dicot Genome Editing Kit contains Cas9, Cas9 nickase, and Cas9 activator expressing plasmids that can... 74307 pAAV-CMV-DIO-Magneto2.0-sNRPpA AAV 74306 pAAV-CMV-DIO-TRPV4-p2A-ferritin-sNRPpA AAV 74302 ...CRISPR-Cas9-based tool for targeting CpG methylation by fusing catalytically inactive Cas9 (dCas9) with...high-throughput CRISPR/Cas9 gene modification in Caenorhabditis elegans CRISPR/Cas9 technology has revolutionized...growing collection of dCas9-VPR plasmids, which already includes dSaCas9-VPR in an AAV transfer vector for...reported on a novel Cas9-based activator developed by the Church lab, termed “dCas9-VPR”, which facilitates...gRNA expressing cells were then transfected with a Cas9-expressing plasmid to generate a population of mutant...
  12. Making CRISPR Plasmids Using Fragmid

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    ...depending on above selections.) CRISPR enzyme (Cas9 [sp], Cas9 [other], Cas12a, RNA-targeting) CRISPR mechanism...CMV-driven; CROPseq) Mammalian AAV pRDA_889 (ITRs from AAV2) Mammalian Transposon pRDA_...Mammalian or drosophila) Delivery type (lentivirus, AAV, transposon, Plasmid) Destination vector (dropdown...
  13. CRISPR History and Development for Genome Engineering

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    ...High fidelity Cas9s: Three high fidelity Cas9 variants , SpCas9-HF, eSpCas9, and HypaCas9 display very ...Staphylococcus aureus (SaCas9) is smaller than SpCas9 and more easily packaged in AAV. Cas9 orthologs also have...III and Cas9 enzymes, which together separate the individual crRNAs. (3) The tracrRNA and Cas9 nuclease...beyond SpCas9, moving us closer to being able to target every locus in every genome. Multiple Cas9 orthologs...capability of Cas9 to make other types of modifications at specific loci. Activate or Repress : dCas9 fused to...the crRNA would bind. (5) After the complex binds, Cas9 separates the double stranded DNA target and cleaves...Single multi-domain effector) Type I (Cas3) Type II (Cas9) Type III (Cas10) Type V (Cpf1) Type IV (Csf1) Type...
  14. CRISPR Plasmids - Prime Edit

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    ...contains Cas9. ID Plasmid Expression System Promoter Guide RNA Type Cloning Enzyme Co-expressed Cas9 Selection...transcriptase (RT) is fused to the C terminus of Cas9 H840A nickase. The fusion enzyme is capable of installing...template. During prime editing, the pegRNA directs the Cas9 nickase to the target sequence where it nicks the...nuclear localization signals, and two mutations in Cas9 to enhance nuclease activity; can be used in PE2...PE6 — small prime editors with optimized RT and/or Cas9 domains PE7 — addition of RNA-binding exonuclease...PuroTK-pegRNA_GG Mammalian, piggyBac hU6 pegRNA BsmBI Yes (Cas9 H840A + MMLV RT) PuroTK Jacob Giehm Mikkelsen 174038... RNA-H1-nick sgRNA-mCherry Mammalian, AAV hU6 + H1 pegRNA + nicking sgRNA No mCherry Hyongbum...
  15. New CRISPR Web Resources and #12DaysofCRISPR Recap

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    ...Delivery Methods and A Match Made in Heaven: CRISPR and AAV Day 6: Bacteria: CRISPR Methods for Bacterial Genome...and CRISPR Antimicrobials Day 7: Multiplexing and Cas9 variants: CRISPR 101: Multiplex Expression of gRNAs...Pooled libraries: Genome-Wide Screening Using CRISPR/Cas9 and Plasmids 101: NGS Quality Control for Pooled... CRISPR Targeting Specificity with eSpCas9, SpCas9-HF1, & HypaCas9 Day 10: Transcriptional regulation:...The PAM Requirement and Expanding CRISPR Beyond SpCas9 Day 8: Repair mechanisms: CRISPR 101: Non-homologous...
  16. Generating Mouse Models Using CRISPR/Cas9

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    ...alternative Cas9, from Streptococcus aureus, is as effective at editing mouse embryos as Cas9 from S. pyogenes...Gurumurty et al., 2016). AAV can also be used as a vector to deliver CRISPR/Cas9 either through injection...guest bloggers, Wenning Qin and Haoyi Wang. CRISPR/Cas9 is revolutionizing the mouse gene-targeting field...ever to manipulate the mouse genome using CRISPR/Cas9. Similar to the human genome, the mouse genome ...robust in performance. In its natural setting, CRISPR-Cas9 is an acquired immune system in bacteria and archaea...) of about 125 nt that specifies the target, the Cas9 endonuclease that creates the DNA double-strand ...model basics To create a mouse model, the gRNA, Cas9, and donor oligonucleotide or plasmid components...
  17. CRISPR 101: Multiplex Expression of gRNAs

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    ... encoding the gRNAs and Cas9. As with the Gersbach lab plasmids, multiple Cas9 variants are available:...subsequently inserted into a Cas9-containing destination vector based on pCAMBIA. Cas9 is plant-optimized, and...humanized Cas9, D10A nickase mutant (Cas9n), dCas9 (transcriptional repression), and Fok1-dCas9 (dimeric...options include humanized wt Cas9, dCas9 (transcriptional repressor), and dCas9-VP64 (transcriptional activator... then digested using BsmBI and ligated into Cas9 or dCas9-containing destination vectors. Destination ...the multiple gRNAs and Cas9 together into a single plasmid. Although only wt hCas9 entry vectors are supplied...target multiple sites! In this post, we'll cover Cas9 multiplexing options, but also check out our blog...
  18. Hot Plasmids and Viral Preps - September 2021

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    ...available including: pAAV-hsyn-GRAB_DA2h in AAV9 New GRAB-DA and 5HT sensors New AAV tools to selectively...end-point sequencing assays. These plasmids use “Cas9-mediated adenosine transient reporter for editing...from the Dimidschstein Lab More GCaMP8 ready-to-use AAV preps  ...
  19. Evolution of Brainbow: Using Cre-lox for Multicolor Labeling of Neurons

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    ...adeno-associated viral vectors (AAV) available - AAV-EF1a-BbChT and AAV-EF1a-BbTagBY. These constructs ...associated with AAV; co-infection with both constructs produces a minimum of 8 colors. The use of AAV provides...CRISPR-Cas9 genome editing may be the hot new way to manipulate gene expression, but other gene manipulation...
  20. Popular Retroviral Vectors and Their Uses in Scientific Research

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    ...lentivirus, Adenovirus, and Adeno-associated virus (AAV). If you are wondering which virus fits you experiments...catalytically inactive (dead), human codon-optimized Cas9 under the control of Murine Stem Cell retrovirus...backbone from the Zhang lab expressing S. pyogenes Cas9 and a gRNA cassette. It can be used to produce a... (shRNA, miR-30-shRNA), mutation/editing (CRISPR-Cas9) or deletion (Cre), together with expression of ...and selection marker removal. CRISPR technology pdCas9-humanized (Plasmid #44246) Expression of a catalytically...
Showing: 41 - 60 of 92 results