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Showing: 41 - 55 of 55 results
  1. Hot Plasmids and Viral Preps - March 2021

    Type
    Blog Post
    Published
    March 23, 2021, 1:15 p.m.
    ...consists of highly useful vectors compatible with Gibson and Saptrap cloning systems to generate AID* ... about a week. Taking advantage of Golden Gate cloning, the Haynes lab’s Protocols.io protocol describes...for delivering CRISPRi components by a single AAV vector are now available from Tonia Rex's lab.  vfCRISPR... system developed by Taekjip Ha’s lab where Cas9-gRNA complex binds the target DNA without cleavage until... Gether lab, now available as ready-to-use AAV vectors.   ...
  2. CRISPR-mediated Plant Base Editors

    Type
    Blog Post
    Published
    Jan. 3, 2019, 1:35 p.m.
    ...suited (Gaudelli et al., 2017). Our vectors have two Bsa1 sites to clone the single guide RNA (protospacer...We use a single polycistronic tRNA-gRNA (PTG) gene system to clone multiple protospacers which enables...plant We developed plant adenine base editor (ABE) vectors to install A>G or T>C mutations in the plant genome...genome. We constructed three versions of the vector (pKABE6.3, pKABE7.9, and pKABE7.10) so that the user... genomic site simultaneously.     These binary vectors could be used to generate stable genome edited ...Agrobacterium-mediated transformation. We also constructed smaller vectors suitable for transient assays using protoplast ...
  3. The AAVantages of AAV in CRISPR Screens

    Type
    Blog Post
    Published
    Feb. 4, 2025, 2:15 p.m.
    ...you have one AAV vector dedicated to expressing Cas9, while the other houses the gRNA and scaffold. If...packaging capacity and stable expression of lentiviral vectors make them an attractive option. However, safety... particularly in vivo ones. In those cases, AAV vector screens may be AAVantageous!       In vivo, in ...delivery method for in vivo CRISPR screens. AAV vectors can be made at high titers equal to those achieved... customization that is unmatched by other viral vector delivery methods. Lentivirus has limited packaging...packaging options, with most lentiviral vectors being packaged using VSV-G. In contrast, AAV can be packaged...psuedotypes to further improve the tropism of AAV vectors, enhancing their affinity for specific cell and...
  4. 28 Hot Plasmid Technologies from 2015

    Type
    Blog Post
    Published
    Dec. 23, 2015, 3:30 p.m.
    ...expression vector which gives close to 100% cloning efficiency and gene expression. The pUCXKT vector ensures...desired insert is cloned using traditional restriction enzyme cloning to create an Entry vector containing a...with custom-cloned vectors in a Multisite Gateway reaction with a desired destination vector expressing...standard entry clone. ORFs from an ORFeome Gateway library or any PCR-amplified ORF cloned into pDONR221... promoter-less Gateway® entry clones to be used with other entry clones encoding the ORFs of interest:...science.aaa3380 MuLE vectors for customized lentivirus production Finding a lentiviral vector backbone with ...building-block vectors that are combined in a specified order using Multisite Gateway cloning. A desired ...
  5. Viral Vectors 101: Preparing Pooled Libraries

    Type
    Blog Post
    Published
    July 13, 2023, 1:15 p.m.
    ...Addgene, including cDNA, barcoding, screening, and gRNA libraries. Most of the pooled libraries at Addgene...protocols and guides regarding pooled libraries, from cloning a pooled library to viral production to screening...
  6. CRISPR 101: Epigenetics and Editing the Epigenome

    Type
    Blog Post
    Published
    June 24, 2020, 5:45 p.m.
    ...genomic targets. These two vectors are part of the larger pMVP/pMAGIC cloning system, which contains Cas9...methylation and activate transcription. A lentiviral vector with the same modifier, Fuw-dCas9-Tet1CD, is available... targeted enhancers. Although the lab used this vector in chick embryos, it also functions in mammalian...and this fusion allows for packaging into viral vectors and targeted delivery into hard-to-manipulate cell...Arlotto ME, et al (2018) Creation of versatile cloning platforms for transgene expression and dCas9-based...Check out Our CRISPR Guide Pages Find Validated gRNAs to Target Your Genomic Locus of Interest Browse ...
  7. Viral Vectors 101: Gamma-Retroviral Packaging Systems

    Type
    Blog Post
    Published
    Aug. 6, 2024, 1:15 p.m.
    ...Addgene blog Viral Vector Elements The Retroviral Life Cycle Popular Retroviral Vectors and Their Use in...  Frequently asked questions about γ-retroviral vectors How do engineered γ-retroviruses differ from lentiviruses...example: pLXSN has the wild type LTR, an MCS for cloning X gene, an SV40 promoter, and Neomycin selection...either side of a retroviral provirus (see below). Cloning capacity between the LTRs is ∼8.5 kb, but inserts...was originally published in 2018, in the Viral Vectors 101 eBook, 1st edition.  References and resources...γ-Retroviral transfer plasmid encoding a transgene, sgRNA, or shRNA of interest: The transgene sequence is...
  8. Sequencing Options for CRISPR Genotyping

    Type
    Blog Post
    Published
    Oct. 4, 2016, 2:30 p.m.
    ...single cell clones for in vitro CRISPR experiments. The likelihood that a single cell clone derived from...position of the mismatch along the length of the gRNA given the stricter sequence requirement at the terminal...may not be worth the cost and labor when single clones are selected. Conversely, translational research...and TALENs using integrase-defective lentiviral vectors." Nature biotechnology 33.2 (2015): 175-178. PubMed...many software tools predict off-target effects of sgRNAs using computational methods. They identify possible...mismatches based on the sequences of the genome and sgRNA. This is a good starting point for most researchers...
  9. Hot Plasmids: Spring 2025

    Type
    Blog Post
    Published
    June 3, 2025, 1:15 p.m.
    ...fusions for membrane display, they recommend the NGR vectors for most experiments. These new tools promise to... toolkit is the empty plasmid backbone: the DNA vector that contains everything needed to replicate inside...backbone plasmids here! Figure 2: Addgene cloned EGFP into pAG Lenti CMV N-HA Puro (Addgene #236079...scarless insertion of the payload (teal). The Cas9 gRNA targeting guide and the transposon RNA homology ...successful experiments or therapies. Using AAV vectors with enhancers that drive cell-type-specific expression...colleagues characterized a series of new enhancer-AAV vectors targeting specific classes of cortical and striatal...
  10. Google Forums Round Up: First Impressions of NgAgo

    Type
    Blog Post
    Published
    Aug. 4, 2016, 2:30 p.m.
    ...guide RNA delivery does however rely on cloning into a vector or in vitro synthesis, which could be less...transfect/inject cells with in vitro preassembled Cas9/gRNA complexes or with guide RNA- and Cas9-expression...
  11. Sharing Your Lab Protocols: Using Apps to Save Time & Track Your Experiments

    Type
    Blog Post
    Published
    Sept. 23, 2014, 3:05 p.m.
    ...Addgene website in December 2006, the pLKO.1-TRC cloning vector (deposited by David Root of the Broad Institute...protocol listed under “Supplemental Document”: gRNA_Cloning Vector (deposited by George Church’s lab). Addgene...Recently I learned that Addgene’s pLKO.1 cloning protocol is viewed around 3,000 times each month. I ...has also cataloged a variety of useful molecular cloning protocols, including making LB agar plates, restriction...), and now Addgene. I just began uploading our cloning protocols to the site and will keep you updated...
  12. 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...virus, I learned from Addgene,” or “I learned to clone from the Addgene website.” We delight in seeing ... CRISPRTwenty Years of Sharing: Addgene's Viral Vector Service...
  13. Hot Plasmids February 2024

    Type
    Blog Post
    Published
    Feb. 20, 2024, 2:45 p.m.
    ...developed an engineered adeno-associated virus (AAV) vector named AAV.CAP-Mac for non-invasive systemic gene...N.C., Goeden, N. et al. Adeno-associated viral vectors for functional intravenous gene transfer throughout...region VIII of AAV9-X1.1 to that of AAV1. This viral vector has brain endothelial cell-specific tropism, with... by pre-existing antibodies against AAV9-based vectors (and vice versa), enabling repeat dosing. In a ...use in western blots, though the original parent clone (M2) has been widely used in a variety of applications...endosomal escape. Combining Cas9-PAGE with lentiviral sgRNA expression yielded editing of 80–90% in human cell...limited (likely due to its long, negatively charged sgRNA), RNP delivery was much better with Cas12, which...
  14. Hassle-free 96-well Format Epitope Tagging Using Cas9 Ribonucleoprotein

    Type
    Blog Post
    Published
    June 28, 2018, 3:01 p.m.
    ...of plasmid vectors and/or rely on cumbersome in vitro synthesis of single guide RNAs (sgRNAs), are time-consuming...is no need to construct plasmid vectors or synthesize/purify IVT sgRNA in the lab. Figure 2: Cas9 RNP... alleles may be warranted (20-30% of all tagged clones were bi-allelic in our hands). Take-home message...genome editing by improved design and delivery of gRNA, Cas9 nuclease, and donor DNA. J Biotechnol 241:...complexed with sgRNA. Direct comparison of Cas9 RNPs prepared with an in vitro-transcribed (IVT) sgRNA versus ... the in vitro-transcribed single guide RNA (IVT sgRNA) approach (Dewari et al. 2018 and Figure 2). Not...
  15. Even more elegant: Single injection CRISPR/Cas9 in C. elegans

    Type
    Blog Post
    Published
    July 7, 2015, 3:36 p.m.
    ...design and clone 500-700 bp homology arms for your gene of interest into the FP-SEC vector using Gibson...3xFLAG-tag fusion proteins. The repair template and Cas9-sgRNA plasmid is then injected into the germline of young...
Showing: 41 - 55 of 55 results