We narrowed to 963 results for: APP
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TypeBlog Post...When possible, the PE3b/PE5b approach is recommended over the PE3/PE5 approach. Figure 7: Nicking...its design changes for every new prime editing application. And optimizing its sequence is important, as...with BioRender.com. PE3b and PE5b: In this approach, the nicking sgRNA is designed to bind only after...BioRender.com. MMR inhibitors PE4 and PE5: These approaches inhibit MMR to improve editing efficiency, but...
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Hot Plasmids February 2024
TypeBlog Post..., its dimeric nature can interfere with some applications. Several labs have been working to produce monomeric... for molecular fusion and membrane-targeting applications. Nature Methods, 1–9. https://doi.org/10.1038...successful in primates. The authors used a multispecies approach to generate and screen a library of AAV9 variants...proven itself a good option for essentially all applications. Addgene’s plasmid collection includes over ...clone (M2) has been widely used in a variety of applications. Find anti-DYKDDDDK recombinant antibodies here... -
High Complexity Golden Gate Assembly with NEB’s DAD
TypeBlog Post...circular assembly, with the 52-piece approach yielding approximately ~800-fold fewer plaques than the 10...thought otherwise! They suspected a data-driven approach might allow for an increase in the complexity....to sets of up to 6-8 overhangs, the data-driven approach was needed to massively expand complexity. The...Overhang Ligation Fidelity by T4 DNA Ligase and Application to DNA Assembly. ACS Synthetic Biology. https... -
Viral Vectors 101: Virus Safety
TypeBlog Post...to take, and if something does happen, ensure you can receive appropriate treatment and/or monitoring. ...protection are key to lab safety and the same principles apply to viral handling. Gloves are always required and...start an experiment, just in case something does happen. Finally, the best way to be safe is to know ...valuable tools without endangering yourself or others. Happy transducing! Resources Resources on Addgene.org... -
A New Generation of Adenine Base Editors Improves Editing in Primary Human Cells
TypeBlog Post... editing in primary human cells Cell therapy approaches can use base editors to correct mutations in ... reduced off-target editing frequencies. For applications that require high DNA editing specificity, for... for example for potential therapeutic approaches, the authors recommend mRNA delivery, the V106W version...deamination, an important attribute for therapeutic application. ABE8s demonstrate an overall improved base editing...editors with increased activity and therapeutic application. Nature Biotechnology. https://doi.org/10.1038... -
Quickest Way to Deposit Plasmids: The Deposit Spreadsheet
TypeBlog Post...information to Addgene Material Transfer Agreement (MTA) approval Send plasmids to Addgene Quality control In...can also directly paste sequence data into the appropriate full and partial sequence cells. *Note: If you...descriptive plasmid name and match the name as it appears in its publication or as it is commonly known in...descriptive purpose focuses on the practical application of the plasmid and will help a scientist outside... account username. In order for the plasmids to appear in your Addgene account under My Plasmids, we need... -
Overcoming the Challenges of Lentiviral Production
TypeBlog Post...end-users, size of the transgene, and downstream applications should all be considered when choosing the correct...example, in our hands we find that a double harvest approach at 48 and 72h produces high titer virus for transfer...procedure for a single 10 cm2 dish can be easily applied to multiple dishes, remember that handling multiple... as resources available, cost and downstream applications. For example, while the PEG precipitation method... When assessing lentiviral titer, don't compare apples to oranges After choosing a packaging system and... -
Story of a SynBio Startup: RevBio's Epiphany (or Lack Thereof)
TypeBlog Post.... We both had an applied science bent, so the engineering aspect of this job appealed to us. However, ...possibilities in life for employment? It never happened – there was never a “moment”. But there were a...about continuing with the business. We ended up applying to a business accelerator freely stating that ...your thoughts with us in the comments below. We’re happy to answer questions about this transition (so far... -
Viral Vectors 101: Producing Your rAAV
TypeBlog Post...contain rAAV. To minimize contamination, use appropriate decontamination procedures (Korte et al., 2021...surfaces that come into contact with the rAAV and apply common cell culture practices diligently throughout... toxic transfection reagents and keep the cells happy. Harvesting virus Once you have transfected your...al., 2010). For certain in vitro and in vivo applications, you can consider using unpurified AAV from ..., 2017). You can learn more about common AAV applications by reading our Viral Vectors 101 series! This... -
Cloning Mammalian Cells with the Agarose Method
TypeBlog Post...carefully) holding plates up to the light, where they appear as opaque dots (colonies should contain at least...only 1.5 ml of each are used). This solution is capped, swirled and tested for the correct temperature...and not spread out onto the plate. We test the (capped) 1:1 agarose/DMEM solution against a part of the...densities, then dispose of the plates that do not appear to be yielding well-spaced clones. For rapidly ...population of transfected clones. The technique is applicable to a wide variety of cell lines, from HEK to ... -
Addgene's Cancer Collection Pages Connect the Research Community
TypeBlog Post...uncontrolled cellular proliferation. We have appreciated for some time the causes of this uncontrolled...cellular machinery necessary for division. This approach also kills dividing non-cancerous cells, such ... University of California, San Francisco, is approaching the Ras problem by exploiting the different mutant...genes from the Ras signaling pathway. Its major appeal is that it enables the simple construction of vectors...any of these genes through several different applications such as fluorescent protein fusion studies and... -
Google Forums Round Up: First Impressions of NgAgo
TypeBlog Post...been excitedly testing NgAgo's genome editing applications. So, how does NgAgo stack up thus far? A few...tips. Based on the discussions in the forums, it appeared that many researchers were having difficulty achieving... target site. Overall, 64% of researchers were unhappy with the new method and 65% wanted to wait until... the comments section below. Keep pipetting and happy genome editing! Check Out Other Argonaute Plasmids... S. Lander, and Feng Zhang. "Development and applications of CRISPR-Cas9 for genome engineering." Cell... -
Plasmids 101: Choosing an Antibiotic Resistance Gene
TypeBlog Post...common antibiotic resistance genes and which applications are best (or worst) for each antibiotic. The... after it has been heat-shocked or electrically zapped. As a result, a shorter recovery period of 30 minutes...is expensive (relative to amp), and for some applications, the benefit it offers is marginal. Fortunately...antibiotic resistance ultimately comes down to your applications and needs. The more niche and specific your ...recap of the pros and cons of each antibiotic and happy selecting! Antibiotic Resistance Stability... -
Getting to Know Expansion Microscopy
TypeBlog Post...with an abundance of protocols and examples of applications from across disciplines now available. In this...Tissue expansion is not compatible with in vivo applications and there’s just not much to be done about that...and Stiles, 2022). Fourth, signal continuity can appear reduced in ExM, which could impact how you interpret...pre-expanded samples can sometimes take on a fragmented appearance post-expansion, but that doesn’t mean we should...especially when paired with complementary experimental approaches. Since it arrived on the scene, ExM has helped... -
Uncovering Ancestral Bias in CRISPR Research
TypeBlog Post...variations in gene expression, they found that for approximately 40% of the identified genes, the genes were ...lines from individuals of African descent have approximately 20% more single nucleotide polymorphisms (SNPs...ancestry-associated cancer dependencies are undercounted by approximately 20%. In some cases, this may lead researchers...map. Now, any data that came from CRISPR guides mapped to a SNP would be ignored. Working with Lia Petronio...8 Lewis, Anna CF, Santiago J. Molina, Paul S. Appelbaum, Bege Dauda, Anna Di Rienzo, Agustin Fuentes, ... -
SciComm: Taking Science to Elementary and Middle Schools
TypeBlog Post...lot of activities (try for a dozen!). The best approach may not be “let’s try to make this STEM activity...that would compliment the STEM curriculum. As it happened, I’d met some of the 8th grade science teachers...opinion, it was more important to communicate the applications of CRISPR over the details of how it worked....analogy that involves student participation, make it happen! How should we use CRISPR? How shouldn’t we use... I came out of the experience with a renewed appreciation of our science teachers’ difficult-but-rewarding... -
AAVs in Retinal Gene Therapy
TypeBlog Post...in the limelight. On December 19, 2017 the FDA approved Luxturna™ the first gene therapy for the treatment...AAV-based gene therapy treatment for a genetic disease approved by the FDA is for a rare eye disease and not another...trial started, and 10 more years to obtain FDA approval and make history in the form of Luxturna™. A ...medicine. References and further reading 1. FDA approves gene therapy for blindness 2. Gene Therapy emerges...-1250015778 7. Yu W and Wu Z., 2018. In vivo Applications of CRISPR-Based Genome Editing in the Retina... -
Twenty Years of Sharing: Addgene's Viral Vector Service
TypeBlog Post...viral vector service in 2016. We realized we could apply the lessons learned from our plasmid lab to develop... tools we make available. This prioritization happens for good reasons. We began offering our viral vector...remains the more requested option, and jGCaMP8 appears to be growing in requests faster than jGCaMP7 (...viral vectors. This process builds on our former approach and involves reading primary literature, soliciting...redesigned Data Hub in 2022. It’s influenced the way we approach our viral vector educational resources, from eBooks... -
Plasmids 101: Plasmid Incompatibility
TypeBlog Post...In this Plasmids 101 post, we’ll cover why this happens, how it might affect your work, and how understanding...rely on chance (or random diffusion) to make this happen. There are several different versions of the plasmid...way to bacterial cloning glory, scientists have applied these concepts to deal with the more sinister plasmids...pestis using plasmid incompatibility. Letters in Applied Microbiology 47:235–240 . https://doi.org/10.1111...Bacterial plasmid partition machinery: a minimalist approach to survival. Current Opinion in Structural Biology... -
Transferable Skills Guide: Career Planning Resources
TypeBlog Post...connection you made at the job fair when you formally apply for the position. This post on Business Insider ...re likely to find current job openings. A good approach is to do this first for companies at which you...connection. That way, once you’ve identified an appropriate job opening, you can send your contact an email...the assistance of recruiters for identifying appropriate job candidates. If you do receive such a call...those relationships. Then when you are ready to apply for your dream job, you’ll be in the best possible...