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We narrowed to 1,006 results for: CAL

Showing: 741 - 760 of 1006 results
  1. Overcoming the AAV Size Limitation for CRISPR Delivery

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    Blog Post
    ...SpCas9 and SaCas9, Zhang’s group used an approach called BLESS (direct in situ breaks labeling, enrichment...post-injection. Livers from these mice were histologically normal and liver injury markers were not increased...enough to deliver with AAV. This system fuses catalytically dead dCas13b to the catalytic domain of RNA ...
  2. The PAM Requirement and Expanding CRISPR Beyond SpCas9

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    Blog Post
    ... D1135E variant is far more selective for the canonical S. pyogenes PAM sequence NGG compared to wild-...novel CRISPR proteins has and will continue to dramatically increase the number of CRISPR applications. ...Wolfe SA, Sontheimer EJ (2018) NmeCas9 is an intrinsically high-fidelity genome-editing platform. Genome...
  3. Four Base Editing Reporters to Monitor and Enrich Editing in Real-time

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    Blog Post
    ...are subject to excision and ssDNA cleavage by canonical base excision repair enzymes. At the same time...targeted by a cytidine deaminase base DNA editor. Specifically the BFP mutant (BFPH66) contains a histidine...markers, and other enzymes such as Cre-recombinase drastically expanding the base-editing reporter toolbox. ...
  4. CRISPR 101: Which Cas9 Do I Choose for My CRISPR Experiment?

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    Blog Post
    ...uses a “nicking” Cas9, in which one of Cas9’s two critical enzymatic residues has been converted to an alanine...deaminases edit A-to-G.) In short, the impaired Cas9 localizes the deaminase to where the edit is desired, and...to dCas9.  This technique has been exploited to localize factors such as transcriptional activators and...
  5. Binning Singletons: Tackling Conference Networking When You Don’t Know Anyone

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    Blog Post
    ...by Joe James from Binning Singletons. The sheer scale of a large conference can be intimidating. And it...when we bring all the bins together at a mixer. We call this Quorum Sensing, after the phenomenon in bacteria... career scientists, students, and those from historically underrepresented groups. Through such mentoring...
  6. Antibodies 101: Reading a Flow Plot

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    Blog Post
    ...generate a dot plot (Figure 1). Clustered events are called a population.                             ...of markers you use to define your population is called your “gating strategy.” This series of markers ...around clusters to define populations. This shape is called a ‘gate’; it tells the machine that everything ...
  7. Viral Production at Addgene

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    Blog Post
    ... relative to empty particles (black arrowhead). Scale bar = 100 nm.   AAV resources Browse AAV preps... a concentration step prior to being frozen. Specifically, lentiviral particles are collected from the... strain of E. coli. In addition, plasmids are typically prepared using endotoxin-free plasmid purification...
  8. Four Ways to Package Transgenes That Exceed the Size Limit of Adeno-associated Virus

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    Blog Post
    ...even when larger vector genomes are packaged, the physical size of the genomes is still ~4.7kb. But despite...overlapping strategy has a region of homology, typically ~400-1400 bp long between part A and B of the ...overlapping split vector had an improvement in muscle physiological performance.  2. Trans-splicing Overview: For...
  9. CRISPR 101: Validating Your Genome Edit

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    Blog Post
    ...clones from that population. You can additionally calculate the minimum number of clones you would have to...consider using a version of Cas9 that has been specifically engineered for reduced off target editing, such...Resources at Addgene: Read our CRISPRGuide Get practical help from our CRISPR Protocols Find gRNA Design...
  10. Transferable Skills Guide: Time Management

    Type
    Blog Post
    ...blocking off time for different tasks. I use google calendar for this and try to give myself flexibility by...activities that are needed to accomplish these goals. Practically speaking, this means I write everything in a ...down? It’s more viscerally appealing for me to physically cross things out (it just feels good) and I remember...
  11. CRISPR 101: Engineering the Plant Genome Using CRISPR/Cas9

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    Blog Post
    ...here). Cas9 is commonly tagged with a nuclear localization sequence to enhance targeting to the nucleus...interest (GOI) into plant cells. A) The system typically consists of a Ti plasmid, into which the GOI is...(2020) Targeted delivery of nanomaterials with chemical cargoes in plants enabled by a biorecognition ...
  12. Site Directed Mutagenesis by PCR

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    Blog Post
    ...used to mutate the PAM sequence (an NGG sequence critical for Cas9 cleavage), thereby rendering the resulting...unique sites and allows for the introduction of specifically designed mutations (not limited to frame shift...temperature in the polymerase chain reaction." Analytical Biochemistry 209.2 (1993): 284-290. PubMed PMID...
  13. Targeting HIV-1 with CRISPR: Shock and Kill or Cut it Out?

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    Blog Post
    ...vitro, and what obstacles must be overcome for clinical success. ART and HIV-1 reservoirs HIV-1 infects...these methods represent exciting advances in preclinical HIV-1 research that should be pursued in animal... field, the lessons learned in pursuing one technological application can benefit many others and accelerate...
  14. Thoughts on the Future of Research 2015 Boston Symposium

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    Blog Post
    ... incredibly important to the stability of the biological research enterprise going forward, in this post...Addgene), that need people who are data oriented, scientifically minded, and able to communicate complex information...underrepresented groups under their mentorship with the same critical eye they place on others within their labs - as...
  15. CRISPR 101: Epigenetics and Editing the Epigenome

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    Blog Post
    ...sequences. Non-editing CRISPR applications direct catalytically dead dCas9 fused to a variety of epigenetic ...from Addgene. For most of these constructs, catalytically dead modifiers are also available as controls...Resources on the Addgene Blog Cas9 Activators: A Practical Guide CRISPR Between the Genes: How to Experiment...
  16. Viral Vectors 101: AAV Variables That Matter

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    Blog Post
    ...Using AAV vectors in complex biological systems can be tricky at best, and downright infuriating at worst...promoter in vivo. Molecular Therapy - Methods & Clinical Development, 3, 16062. https://doi.org/10.1038... Expression specificity of GFAP transgenes. Neurochemical Research, 29(11 SPEC. ISS.), 2075–2093. https...
  17. Plasmids 101: Using Transposons in the Lab

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    Blog Post
    ...transposition: Class I TEs, also called retrotransposons, and Class II TEs, also called DNA transposons. DNA transposons...in a genome. But there is a type of mobile DNA, called a transposon, that’s a bit hyperactive and likes...
  18. Celebrating the 2024 Nobel Prize in Chemistry

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    Blog Post
    ...understanding of how protein folding works and creating biological tools not found in nature. Dr. Baker’s team was...was not based on any existing protein structures, called Top7. Figure 1: Top7 receives the Nobel ...
  19. Bringing Renewable Energy to Addgene

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    Blog Post
    ...of an “electricity aggregation program” for all local households and businesses. Electricity aggregation... energy expenditure here at Addgene. These are critical systems that cannot be removed or substantially...
Showing: 741 - 760 of 1006 results