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Showing: 61 - 77 of 77 results
  1. Lentiviral Vector Uses and Overview

    Type
    Blog Post
    ...Screening Read about Genome-Wide Screening Using CRISPR/Cas9 Additional Resources on Addgene.org Check out ...system, the possibility of creating a replication-competent virus via recombination between the transfer and...recombination events necessary to create a replication-competent virus. Second, Tat is eliminated through the addition...
  2. Adenoviral Vector Production and Troubleshooting

    Type
    Blog Post
    ...primer for beginners Adenoviral delivery of CRISPR/Cas9 5 tips for troubleshooting viral transductions ...response against AdV. Importantly, recombination-competent adenovirus (RCA) can be generated if the E1 gene...
  3. Quick Guide to All Things Lentivirus

    Type
    Blog Post
    ...vectors fantastic options for delivering shRNA, CRISPR/Cas9 components, and fluorescent sensors. Retroviral...forming a vector that could create replication competent virus. Even though this system was efficient at...potential risk for the generation of replication competent lentiviruses (RCL) especially if you are working...positive cells could make the virus replication competent. The 3rd generation of lentiviral vectors was...8 kb) Potential for generation of replication-competent lentivirus (RCL) Efficient gene transfer Potential...Potential for insertional mutagenesis: Replication-incompetent lentiviruses with human tropism can still infect...
  4. Rett Syndrome

    Type
    Collection
    ...resources for a full selection of plasmids expressing Cas9 and empty gRNA backbones. A few examples of additional...spoken language and hand skills, development of repetitive hand stereotypies, and gait dysfunction or absence...
  5. Fluorescent Proteins 101: Monitoring Cell Mobility Using Fluorescent Proteins

    Type
    Blog Post
    ...other technologies such as optogenetics and CRISPR/Cas9 will help immunologists create even better tools...Neutrophils travel to the sites of infection or damage (Peters et al. 2008, Chtanova et al. 2008, Kamenyeva et... immune system and its dynamics. References 1. Peters, Nathan C., et al. "In vivo imaging reveals an ...
  6. How to Deposit Your Plasmids with Addgene

    Type
    Blog Post
    ...cloned into it. gRNAs are used for directing CRISPR/Cas9 to a targeted genomic location, while shRNAs are... propagated in DH5α. For plasmids with highly repetitive sequences (which can be prone to recombination...
  7. Mobile-CRISPRi: Bringing CRISPRi to Diverse Bacteria

    Type
    Blog Post
    ...genetic tools. Mobile-CRISPRi from the labs of Jason Peters, Oren Rosenberg, and Carol Gross provides a streamlined...antibiotic resistance selection markers, gRNAs, and dCas9 proteins. Second, it can be introduced into a broader...Mobile-CRISPRi's modular components. Image from Peters et al., 2019 with permission.   Two methods... with an integrated copy of CRISPRi. Image from Peters et al., 2019 with permission.    The team showed...strains and environmental isolates. For example, Peters and colleagues used Mobile-CRISPRi to knockdown...possible with Mobile-CRISPRi. As a proof of principle, Peters and colleagues constructed a 40-member library ...promoters, selection markers, and different versions of dCas9. Following integration, Mobile-CRISPRi is stably...
  8. Hot Plasmids - August 2020

    Type
    Blog Post
    ...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...plasmids were expressed in SHuffle T7 Express competent E.coli (NEB) using IPTG induction. To biotinylate...approaches rely on continual expression of both dCas9 and the gRNA. This expression can vary significantly...expression of single or multiplexed gRNAs and of dCas9 fusions. The dCas-KRAB activator and the dCas-VPR... 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...
  9. Hot Plasmids and Viral Preps - July 2021

    Type
    Blog Post
    ...permuted green fluorescent protein or cpGFP) to the petunia SL enzymatic receptor DAD2. SLs induce a conformational...editing in moderate thermophiles.  These evolved SpCas9 variants have improved activity on NAG PAMS and...
  10. Fluorescence Titering Assay

    Type
    Protocol
    ...single channel pipette 2–20 µL single channel pipette 20–200 µL single channel pipette 200–1000 µL single...single channel pipette Ice bucket CO 2 incubator Pipet controller Hazardous waste container Inverted fluorescence...cells into 14 mL of DMEM complete. Mix well by pipetting or inverting. Aliquot 2 mL of cell suspension ...transduced with a range of dilutions of pHAGE-TO-dCas9-3XmCherry . 72 h post transduction, cells were assayed...
  11. Lentivirus Production

    Type
    Protocol
    ...single channel pipette 2–20 µL single channel pipette 20–200 µL single channel pipette 200–1000 µL single...single channel pipette Ice bucket CO 2 incubator Pipet controller Hazardous waste container pH meter Stir...per 10 cm dish). Using transfer plasmid pHAGE TRE dCas9-KRAB (total μg of plasmid DNA 27.8 μg), this would...out of the previously seeded 10 cm plate. Slowly pipette the transfection mix onto the 10 cm plate, being...
  12. Colony Formation Titering Assay

    Type
    Protocol
    ...single channel pipette 2–20 µL single channel pipette 20–200 µL single channel pipette 200–1000 µL single...single channel pipette Ice bucket CO 2 incubator Pipet controller Hazardous waste container Reagents DMEM...complete containing 10 μg/mL polybrene. Mix well by pipetting or inverting. Aliquot 1.35 mL of the cell suspension...serial dilutions of the lentiviral vector pHAGE EF1α dCas9-KRAB . The following day, cells were treated with...
Showing: 61 - 77 of 77 results