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  1. Components of CRISPR/Cas9

    Type
    Blog Post
    Published
    Feb. 2, 2016, 5 p.m.
    ...  The synthetic guide RNA or gRNA (sometimes sgRNA) In the native Type II CRISPR/Cas system, Cas9 is...known as the guide RNA (gRNA) or single guide RNA (sgRNA). Throughout the remainder of this post, we’ll refer... Cas9 endonuclease or a variant thereof. This individual protein has all the components necessary to: ...foreign DNA target sequences specific to each individual crRNA. Bottom line, the “direct repeat region...
  2. Overcoming the AAV Size Limitation for CRISPR Delivery

    Type
    Blog Post
    Published
    Sept. 16, 2020, 1 p.m.
    ... the Zhang lab created an all-in-one SaCas9 and sgRNA construct using the liver-specific serotype AAV8... a control AAV-GFP. Not only did the AAV-SaCas9-sgRNA constructs mediate genome modification, but they... in two pieces and package each piece into an individual AAV. When a cell is transduced by both AAVs, ...
  3. Four Base Editing Reporters to Monitor and Enrich Editing in Real-time

    Type
    Blog Post
    Published
    July 7, 2020, 1:15 p.m.
    ... the BFP variant, a BE4am-Cas9 base editor, and sgRNA vectors for the BFP-to-GFP conversion and to target...cytidine base editor. The lab then introduced an sgRNA targeting the GFPACG to the cells. As expected, ... To create the eGFP reporters the Harris lab individually mutated three codons in eGFP to eliminate fluorescence...
  4. CRISPR 101: Off-Target Effects

    Type
    Blog Post
    Published
    Feb. 8, 2024, 2:15 p.m.
    ...and sequencing millions of cells. For every individual sgRNA, you recover a minimum of 1,000 targeted cells...of 5%. Your experiment involves making a large sgRNA library to thousands of genes and targeting and ...
  5. What's New in CRISPR - March 2020

    Type
    Blog Post
    Published
    March 10, 2020, 1:15 p.m.
    ...regulator. The lab expressed both dCas9 and the ctrA sgRNA and saw that the levels of ctrA mRNA decreased after...but it takes several weeks to delete or deplete individual genes. Michael Laub’s lab developed a CRISPRi...
  6. Tips for a 1st Time CRISPR User (by a 1st Time CRISPR User)

    Type
    Blog Post
    Published
    March 7, 2017, 3:30 p.m.
    ...is described in Rational design of highly active sgRNAs for CRISPR-Cas9-mediated gene inactivation. Doench...Doench & David Root and are described in Optimized sgRNA design to maximize activity and minimize off-target... the initial stable cell pool (pool) and from individual cell expansions (monoclonal, 1-5). Wild-type ...maintenance involved. Also it was really fun to find individual colonies growing out in the 96-well dish. My ...control GFP gRNA (BRDN0000561167) (80034-LV) were individually used to transduced stable pools of Cas9-A549...
  7. Hot Plasmids - June 2020 - Barcoded CRISPR Library, Sparse Cell Labeling, Calcineurin Reporter, and DNA Staining Dye Alternative

    Type
    Blog Post
    Published
    June 2, 2020, 1:15 p.m.
    ...deposit please sign up here.  Human whole genome sgRNA iBAR library Article contributed by Susanna Bachle...Initial steps in the CRISPR-pooled screening using sgRNAiBAR. Image from Zhu et al., 2019.  Wensheng Wei's...their loop region. After infecting cells with sgRNAiBAR library containing lentiviral vectors the iBARs...the gRNAs and their iBAR sequences. Since the sgRNAiBAR library covers every annotated human gene, it ...number of cells and in vivo settings. Find the sgRNAiBAR library!  Zhu et al., Genome Biology, 2019. PubMed...cells in a population, it’s easier to visualize individual/non-overlapping cells. Until now, tools for doing...
  8. 27 Hot Plasmids from 2016

    Type
    Blog Post
    Published
    Dec. 22, 2016, 3:03 p.m.
    ...The library was cloned into the Liu lab’s own pAc-sgRNA-Cas9 insect expression backbone, which expresses...after the brightly-coloured Australian parrot, the dual colour-emission biosensor Rosella consists of DsRed...has recently developed a new method called DULIP (dual luminescence-based co-immunoprecipitation) to overcome...that constitutively express Cas9 with a library of sgRNA expression vectors (containing ten guides against...obstacle. With CRISPR-X, dCas9 is used to recruit an sgRNA with MS2 hairpin binding sites, which then recruit... death. The Wu lab library consists of 77,406 individual gRNAs targeting a total of 20,121 genes within...stocks in a single plate with every plasmid or as individual plasmids shipped as agar stabs. Iverson, et ...
  9. Pairing CombiGEM and CRISPR for Combinatorial Genetic Screening

    Type
    Blog Post
    Published
    April 12, 2016, 2:30 p.m.
    ...PMC4151723. 2. Doench, John G., et al. "Optimized sgRNA design to maximize activity and minimize off-target...Gilbert et al., 2014; Konermann et al., 2014) individual genes for studies interrogating their functions...incredibly useful for the efficient generation of individual (and multiple) genetic perturbations in single...
  10. CRISPRainbow and Genome Visualization

    Type
    Blog Post
    Published
    Feb. 28, 2017, 3:30 p.m.
    ...labeling of genomic loci with dCas9 and engineered sgRNAs using CRISPRainbow.” Nat Biotechnol. 34(5) (2016...hairpin combination bringing the total number of individual colors to 6. A gRNA with all three hairpins generates...
  11. Fluorescent Tagging of Endogenous Genes with SapTrap

    Type
    Blog Post
    Published
    Oct. 12, 2017, 2:26 p.m.
    ...SapI yields 2 sites- the first site accepts the sgRNA target sequence for U6 promoter expression and the...screen, it is expensive and time consuming to individually generate gRNAs and homology arm repair templates...
  12. CRISPR 101: Multiplex Expression of gRNAs

    Type
    Blog Post
    Published
    Sept. 10, 2020, 11:45 a.m.
    ...many reasons to multiplex gRNAs, some being: Using dual nickases to generate a knockout or edit. This can...Mutagenesis Using Transgenic Expression of Cas9 and sgRNAs.” Genetics 200(2) (2015): 431-441. PubMed PMID:...Assembly. Using BsaI, gRNAs are cloned into one of 12 pYLsGRNA plasmids, which contain various promoters and ...
  13. 22 Hot Plasmid Technologies from 2014

    Type
    Blog Post
    Published
    Jan. 6, 2015, 5:21 p.m.
    ...genome-wide knockout screens. These vectors and sgRNA libraries expand upon the CRISPR family of plasmids...plasmids by offering a lentivirus-based mechanism for sgRNA delivery and providing a means for large scale functional...vector in transgenic mice, the lab established a dual-color RNAi “sensor” mouse strain in which Cre expression...distinct differences of red-to-green fluorescence in individual mitochondria in the networks marks the differences...in a Golden Gate cloning step to assemble the individual components into a destination vector in a predefined...UTRs, coding sequences, terminators, etc) into individual Level 0 plasmids, or choose from a growing number... assembly system, which reduces the number of individual repeat-variable di-residue (RVD) module plasmids...
  14. How to Design Your gRNA for CRISPR Genome Editing

    Type
    Blog Post
    Published
    Sept. 24, 2020, 1:15 p.m.
    ...Shlyueva D, Müller I, Helin K (2016) Optimizing sgRNA position markedly improves the efficiency of CRISPR...2014) Low Incidence of Off-Target Mutations in Individual CRISPR-Cas9 and TALEN Targeted Human Stem Cell...
  15. Generating Mouse Models Using CRISPR/Cas9

    Type
    Blog Post
    Published
    July 12, 2016, 2:30 p.m.
    ...Root DE (2014) Rational design of highly active sgRNAs for CRISPR-Cas9–mediated gene inactivation. Nat...if we could just go in and quickly manipulate individual mouse genes and study their function in health...
  16. Custom CRISPR Screens & the Green Listed Software

    Type
    Blog Post
    Published
    July 11, 2017, 2:30 p.m.
    ...28414855. 2. Doench, John G., et al. "Optimized sgRNA design to maximize activity and minimize off-target...knocked out at the population level, but each individual cell only has a maximum of one gene knocked out...
  17. 15 Hot Plasmids from 2017

    Type
    Blog Post
    Published
    Jan. 9, 2018, 3:02 p.m.
    ... a single, unique, and constitutively expressed sgRNA targeting the 5’ end of each essential gene. Koo...fusion protein retained the PAM properties of the individual Cas9. Kim et al. also mutagenized the cytidine...proposed to be essential in B. subtilis 168. Each individual strain includes a xylose-inducible dCas9 paired...
Showing: 21 - 38 of 38 results