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We narrowed to 839 results for: LEA

Showing: 401 - 440 of 839 results

  1. Top Requested Lentivirus and AAV of 2016

    Type
    Blog Post
    Published
    Jan. 6, 2017, 3:56 p.m.
    ...Additional Resources on the Addgene Blog Learn More About Lentivirus Learn more About AAV Get the Scoop on Our...of 2016. The top viruses of 2016 were (drumroll please)... Top Lentivirus: lentiCas9-Blast Most of Addgene... to perform unique editing tasks, classic Cas9 nuclease, which introduces double stranded DNA breaks, ...

  2. Plasmids 101: Blue-white Screening

    Type
    Blog Post
    Published
    June 4, 2015, 1:03 p.m.
    ...β-galactosidase mutation. An unsuccessful cloning reaction leaves the α-peptide intact, and therefore the cell will...artifact that disrupts the α-peptide DNA will also lead to a white colony. And also false negatives: These... fragment is inserted in-frame, read-through can lead to a functional β-galactosidase enzyme and a blue...Blog Read Our Post on Common Lab E. coli Strains Learn to Use Yeast Two Hybrid Systems Browse All of Our...

  3. RANbodies: Reporter Nanobody Fusions

    Type
    Blog Post
    Published
    April 10, 2018, 12:56 p.m.
    ... suited for particular applications. Read on to learn more about each reporter or check out table 1 for...nanobody that would make a useful RANbody, consider leaving a link to its sequence in the comments below. ...29440485. Additional Resources on the Addgene Blog Learn more about using the secondary nanobody toolbox ... plasmids can be found here Watch this video to learn more about nanobodies Additional Resources Looking...

  4. Antibodies 101: Affinity Reagents

    Type
    Blog Post
    Published
    April 14, 2022, 1:15 p.m.
    ....) Fab fragments are created through enzymatic cleavage of the variable region (the antibody region that...to the antigen) from existing antibodies. Each cleaved antibody will produce two ~50kD Fab fragments, ...fragment but created through engineering instead of cleavage. They are comprised of the variable heavy and ...Whatever affinity reagents you use, one thing is clear: it’s an exciting time to be a scientist looking...

  5. Announcing the Winners of the 2021 Michael Davidson and Roger Tsien Commemorative Conference Awards

    Type
    Blog Post
    Published
    Aug. 5, 2021, 12:15 p.m.
    ...This biosensor changes fluorescence based on the release of glutamate from neurons and this new version ...than its predecessors. Currently, Aggarwal, and colleagues Filip Tomaska and Tim Hanson, are characterizing...iGluSnFR3 in vivo and have used it to detect glutamate release from hundreds of synapses at once. “This work has...Aggarwal.In addition to the biosensors, Aggarwal and colleagues are working on developing new surface display...

  6. Uncertainty about Labor Law Brings More Uncertainty to Postdoc Wages

    Type
    Blog Post
    Published
    Jan. 11, 2017, 3:30 p.m.
    ...week could expect to see their salary raised to at least a new legal minimum of $47,476 per year, under updates...universities with the FLSA in our online resource leading up to this date, as discussed in a previous Addgene...planning unionization at their institutions. One clear message that institutions have sent, with the lack...the Advocating for Science Symposium and Workshop Learn about a Variety of Science Careers Resources on...

  7. Plasmids 101: CcdB - The Toxic Key to Efficient Cloning

    Type
    Blog Post
    Published
    Dec. 8, 2016, 3:30 p.m.
    ...does it play in modern cloning, and why should you learn more about it? Read on to find out how ccdB can ...restriction enzyme-mediated disruption of ccdB, leading to positive identification of desired clones. ...most appropriate method for your own experiments. Please check out Addgene’s Choosing a Molecular Cloning...CcdB protein induces efficient ATP-dependent DNA cleavage by gyrase.” J Mol Biol. 1993 Dec 5;234(3):534-...

  8. Addgene's Tips for Plasmid Quality Control

    Type
    Blog Post
    Published
    Jan. 14, 2016, 3:30 p.m.
    ...Troubleshooting DNA Sequence Learn Additional Ways to Verify Your Plasmid Learn How Addgene Uses Barcodes.... All of our incoming plasmids are sequenced at least twice, and sometimes more depending on the number...read. You can expect to recover around 750 bp of clean sequence from a typical reaction, or about 250 amino...

  9. The Future of Research Symposium Boston 2015

    Type
    Blog Post
    Published
    Oct. 20, 2015, 2:30 p.m.
    ...on the symposium as a whole and for registration please go to http://futureofresearch.org/boston/. The ... data and the Labor Market. On this topic it is clear that many important questions, areas for informed...biomedical_research_wgreport.pdf Resources at Addgene Learn More about Careers in Science in Our Career Posts...Meetings from Addgene Executive Director Joanne Kamens Learn how to be a successful manager with our Management...

  10. Plasmids 101: Golden Gate Cloning

    Type
    Blog Post
    Published
    Aug. 27, 2015, 2:30 p.m.
    ... "traditional" restriction enzymes in that they cleave outside of their recognition sequence, creating... BbsI), that are located on the outside of the cleavage site. As a result, these sites are eliminated ...a few advantages over other cloning methods. Exonuclease-based methods like Gibson assembly require 20...multiple DNA fragments to create TAL effector nucleases. These plasmids were designed to utilize the BsaI...

  11. A New Generation of Adenine Base Editors Improves Editing in Primary Human Cells

    Type
    Blog Post
    Published
    May 7, 2020, 1:15 p.m.
    ...the promoter region of gamma hemoglobin (HGB1/2) leads to continuous expression of fetal hemoglobin even...efficiency, respectively) and outperformed ABE7.10 by at least 1.4 fold. The ability of ABE8.20-m to edit primary...editing of A•T to G•C in genomic DNA without DNA cleavage. Nature 551:464–471 . https://doi.org/10.1038/...Addgene blog Find more blog posts about base editing Learn about another evolved base editor: ABE8e Read about...

  12. Educational Planarian Tools for Teaching Developmental Biology Techniques

    Type
    Blog Post
    Published
    May 24, 2018, 1:20 p.m.
    ...Arabidopsis in Education Learning Synthetic Biology with BioBuilder 3D Models for learning about CRISPR Resources... subsequently destroyed by Argonaute-catalyzed nuclease activity or their translation disrupted through...protocols and want to share pictures, feedback etc. please write to [email protected] and if you make...

  13. Pathways Over Time Plasmids Engage Students in Functional Genomics Research

    Type
    Blog Post
    Published
    May 22, 2018, 1:38 p.m.
    ...Addgene Blog Learn about Synthetic Biology with BioBuilder Use Addgene Videos to Learn about Basic Lab...genes in other species, but these studies generally leave questions about gene function wide open. What if...Check Out Our Molecular Biology Reference Pages Learn Simple Lab Techniques in Our Protocol Videos ...

  14. Getting Started with Behavioral Neuroscience: Standardizing Experiments and Using Viral Vectors

    Type
    Blog Post
    Published
    Aug. 20, 2019, 12:31 p.m.
    ...spectrum. The experimental apparatus should be cleaned thoroughly between animals as olfactory stimuli...animal (ex: urine) can be distracting. If it is not cleaned, animals tested towards the end of an experiment...coordination to more complex situations such as learning and memory or emotional states, for example anxiety...Guide to Viral Vectors Resources on Addgene.org Learn about Addgene's viral service Find viral protocols...

  15. Viral Vectors 101: Virus Safety

    Type
    Blog Post
    Published
    June 22, 2023, 1:15 p.m.
    ...adenovirus, and adeno-associated virus (AAV). The least risky of these four viruses is AAV – it is not known...propensity to integrate into proto-oncogenes, which can lead to cancer. These viruses need to be handled in a...thoroughly decontaminated after use, typically with bleach (plastic) or ethanol (other surfaces). For AAVs...and isopropyl alcohol, 0.5% peracetic acid, 10% bleach, or 1% iodine are useful. Some organizations or...

  16. Hot Plasmids and Viral Preps - March 2021

    Type
    Blog Post
    Published
    March 23, 2021, 1:15 p.m.
    ...target DNA without cleavage until it's activated by light. Once activated, Cas9 cleavage can induce DSBs ...probes and editors. A probe array may consist of at least two sensor modules targeting a specific chromatin...complex binds to the degron sequence ultimately leading to the degradation of the AID-tagged protein. To...

  17. 5 Tips for Troubleshooting Viral Transductions

    Type
    Blog Post
    Published
    Aug. 11, 2016, 2:23 p.m.
    ...unfortunate experience of witnessing…nothing. For some unclear reason, cells are not getting transduced. Here,...reducing the culture volume into which the virus is released, a more concentrated virus solution can be obtained...PMC330758. Additional Resources on the Addgene Blog Learn All about Adenovirus Associated Virus New to Virus...Virus? Check out Our Primer for Beginners! Learn All about Lentiviral Vectors Additional Resources on ...

  18. The Scientific Conference Poster Session: Tips for Success

    Type
    Blog Post
    Published
    Aug. 29, 2019, 12:50 p.m.
    ...remember what to say and provide your audience with a clear picture of your work. Practice, practice, practice...with people inside and outside your field. Your colleagues, lab mates, and PI can provide feedback on your...Anticipate questions: When practicing with your colleagues, ask them to brainstorm potential questions you... of a member of the Addgene depositor community Learn about careers at Addgene ...

  19. Mobile-CRISPRi: Bringing CRISPRi to Diverse Bacteria

    Type
    Blog Post
    Published
    April 4, 2019, 12:53 p.m.
    ...Addgene blog Learn about other CRISPR methods for bacterial genome engineering   Learn about human CRISPRko...environmental isolates. For example, Peters and colleagues used Mobile-CRISPRi to knockdown individual genes...-CRISPRi. As a proof of principle, Peters and colleagues constructed a 40-member library targeting 20 ...

  20. Viral Vectors 101: Producing Your rAAV

    Type
    Blog Post
    Published
    July 16, 2024, 1:15 p.m.
    ...serotype, as some rAAV serotypes are abundantly released into the culture media, while others remain cell-associated...and non-genome-containing (empty) capsids, thus leading to an overestimate of transducible units in the...and dehydration (Howard & Harvey, 2017). You can learn more about common AAV applications by reading our...Wilson, J. M. (2010). Efficient serotype-dependent release of functional vector into the culture medium during...

  21. PhD Applications After COVID

    Type
    Blog Post
    Published
    Jan. 5, 2023, 2:15 p.m.
    ...communication. But first, take a deep breath; at least you know you have an answer to that previous nosy... complicated process even more difficult. I’ve learned that some of the technologies that helped us navigate...application process and usually occurs in the few months leading up to applications opening. With virtual options...be a great opportunity to introduce yourself and learn more about your schools of interest. Benefits of...

  22. Tips for a 1st time AAV user (by a Rookie AAV user)

    Type
    Blog Post
    Published
    Oct. 23, 2018, 11:49 a.m.
    ...four times in a 95% ethanol and dry ice bath to release the virus particles from the cells. Cell lysates...batch-to-batch variability. Check out this post to learn more about different ways to titer AAV. Do you ...you have any AAV production tips or tricks? Please share them in the comments below! Special thanks ...first time CRISPR user Resources on Addgene.org Learn how Addgene produces AAV and lentivirus Check out...

  23. Golden Gate Assembly Upgrades: More Fragments, Faster Assembly, and Higher Fidelity

    Type
    Blog Post
    Published
    Oct. 11, 2018, 12:30 p.m.
    ... blog Learn the basics of Golden Gate assembly Check out NEB's work on ligase efficiency Learn about ...assembly, ligation of mismatched pairs of overhangs can lead to incorrect assemblies, so care must be taken to...is a molecular biologist and a Development Group Leader overseeing a team bringing new products to market...

  24. Plasmids 101: Knockout/Knock-In Plasmids

    Type
    Blog Post
    Published
    Dec. 1, 2016, 3:30 p.m.
    ...desired recombination event will remove NeoR only and leave exon 2 floxed, as seen in line 4 of Figure 4. Since...tools for creating knockout animals or cell lines, please consider sharing them by depositing with Addgene... with CRISPR through Non-Homologous End Joining Learn How the FLEx Switch Can Be Used to Turn Genes On...Mammalian Expression Vectors Find Cre-Lox Plasmids Learn More about CRISPR  ...

  25. When is a Monomer not a Monomer? The Top Three Ways Your Favorite Fluorescent Protein Oligomerizes in Cells

    Type
    Blog Post
    Published
    April 19, 2016, 2:30 p.m.
    ...forming noncovalent dimers. This property of EGFP can lead to significant artifacts. If you're using green ...reportedly monomeric FPs are not actually monomeric, at least in practical terms. The propensity of a particular...FP dimerization coupled with POI dimerization can lead to polymerization of the fusion protein. A dimeric... members (superfolder, Emerald, CFP, YFP, BFP, Cerulean, Turquoise, Venus, and Citrine) can be monomerized...

  26. Isolating Genomic Regions of Interest with the CRISPR System

    Type
    Blog Post
    Published
    May 30, 2019, 12:44 p.m.
    ...numerous discoveries have been made using the Cas9 nuclease in the absence of genomic alterations. These studies...sequence via a targeting gRNA. But dCas9 does not cleave the DNA. Much of the research using dCas9 has focused...research conducted in the Hodaka Fujii Laboratory, please also see our interview with Dr. Fujii. References..., et al. "A programmable dual-RNA–guided DNA endonuclease in adaptive bacterial immunity." Science337.6096...

  27. Summer SciComm Series: Modes of Communication

    Type
    Blog Post
    Published
    July 1, 2022, 1:15 p.m.
    ...finding how-to videos on YouTube long before he learned (somewhat successfully) how to text or use Facebook... communication that you enjoy and that plays at least slightly to your strengths. Otherwise, you’re going...cost or freeware alternatives and how steep of a learning curve it will be to get to the necessary level...balance out cons. Flexible. Can allow people to learn in multiple ways from the same experience.  Can ...

  28. An Introduction to Adenovirus

    Type
    Blog Post
    Published
    Oct. 3, 2023, 1:15 p.m.
    ...innate immune system; and reconfiguring of the nuclear compartment, gene expression, and protein translation...responses that inactivate viral genomes or otherwise clear the virus from the cell population (Kafri et al....Adenovirus Tales: From the Cell Surface to the Nuclear Pore Complex. PLoS Pathog, 11(6), e1004821. https...stages of infection for efficient cell lysis and release of adenovirus from infected cells. J Virol, 70(...

  29. CRISPR Between the Genes: How to Experiment with Enhancers and Epigenomics

    Type
    Blog Post
    Published
    Aug. 9, 2016, 2:30 p.m.
    ...research interests include proteomics, machine learning, and visualization for big biology. GPS for the...are critical? One hypothesis: the enhancers! This leads us to a three-step approach for designing an experiment...database. Aneesh's research interests span machine learning, proteomics, and user interfaces for math.     ...Catch Up on Your CRISPR Background with CRISPR 101 Learn about CRISPR Delivery Methods Validate Your Genome...

  30. Tips for Screening with Yeast Two Hybrid Systems

    Type
    Blog Post
    Published
    Oct. 22, 2015, 2:30 p.m.
    ...and controls (see Tips below), and by validating leads with other methods. More common are false negatives...levels of bait and prey proteins - overexpression can lead to false interactions. Lowered expression levels...techniques! Minimizing false negatives: Interactions leading to detectable reporter signals depend on a number...problems with one or more of these parameters can lead to a high number of false negatives in Y2H screens...

  31. The Importance of a Fun Workplace: Company Culture at Addgene

    Type
    Blog Post
    Published
    Sept. 3, 2015, 2:30 p.m.
    ...a cooler. Chances are one of your colleagues has a frisbee at least. Use it! 8. Organize If you’re doing...make an effort to build relationships with their colleagues. It can be easy to get caught up in the minutia...true. If your event requires a lot of set up or cleanup, ask for volunteers to help out. Delegate- it will...

  32. A Career in Grants: How To Become a Grant Professional

    Type
    Blog Post
    Published
    Aug. 20, 2015, 2:30 p.m.
    ..., and they stepped up to apply for a grant which lead to their new career path.  A part of the career ...story for most established grant professionals is learning to succeed in grants through trial and error, ...increased their demand for stronger budgets with clear budget narratives, logic models, established partnerships... Throughout these moves and program changes, I learned to write grants for health, housing, economic development...

  33. Four Base Editing Reporters to Monitor and Enrich Editing in Real-time

    Type
    Blog Post
    Published
    July 7, 2020, 1:15 p.m.
    ...and ssDNA cleavage by canonical base excision repair enzymes. At the same time Cas9n cleaves the opposing...editing of A•T to G•C in genomic DNA without DNA cleavage. Nature 551:464–471 . https://doi.org/10.1038/...and enrichment of DNA editing by APOBEC–Cas9 or cleavage by Cas9 in living cells. Nucleic Acids Research...

  34. Plasmids 101: Plasmid Incompatibility

    Type
    Blog Post
    Published
    March 31, 2020, 1:15 p.m.
    ... around, the plasmids are randomly positioned, leading to plasmid loss (Diaz et al., 2015).  Figure...designed small, high copy incompatible plasmids that lead to asymmetrical plasmid loss of the usually large...Addgene blog Read all of our Plasmids 101 blog posts Learn more about the origin of replication Find blog posts... Leah Schwiesow...

  35. New CRISPR Tools: Cas7-11 and PASTE

    Type
    Blog Post
    Published
    Feb. 17, 2022, 2 p.m.
    ...Cas13, the "collateral" activity of the enzyme can lead to off targets and result in significant, negative...processing pre-CRISPR RNA into mature CRISPR RNA and cleaving RNA at positions defined by the target:spacer ...limited to small deletions and small insertions, leaving a several kilobase-sized gap in the gene editing...Abudayyeh. Drag-and-drop genome insertion without DNA cleavage with CRISPR-directed integrases bioRxiv 2021. ...

  36. Transferable Skills Guide: Creativity

    Type
    Blog Post
    Published
    Jan. 18, 2022, 2:15 p.m.
    ...researchers recognize their MANY transferable skills learned while working in the lab and offering advice on...think of creativity as a form of innovation, it’s clear that creativity is absolutely a transferable skill...get distracted by an email or sidetracked by a colleague. To innovate, you’ll have to focus. Find yourself...(2019). Embrace your weird face your fears and unleash creativity. Gallery Books. Boyes, A. (2019, November...

  37. Fluorescent Proteins 101: Aptamer Fluorophores

    Type
    Blog Post
    Published
    April 11, 2017, 2:30 p.m.
    ... proximity of the fluorophore and subsequently leading to a positive signal. The same effect can be achieved...this approach less sensitive in most applications. Learn About Fluorescent Biosensors Light-up aptamers (...assay. In 1999, Grate and Wilson paired laser cleavage and an RNA aptamer that bound the compound malachite...Addgene Blog Tips for Using FRET in Your Experiments Learn more about GFP Controlling Protein Activity with...

  38. Antibodies 101: Reading a Flow Plot

    Type
    Blog Post
    Published
    Feb. 6, 2024, 3:13 p.m.
    ... Flow data is messy, so learning how to gate takes a lot longer than learning how to read a gating strategy...visualization tool, a quadrant will often be too clean for real-world data. Most plots will have a shape...    Of course, there are many more things to learn about when diving into flow cytometry data. There...

  39. Tips for Writing a Good Cover Letter

    Type
    Blog Post
    Published
    May 21, 2024, 1:30 p.m.
    ... Make it clear that you are interested in the specific position you are applying to. Be clean and professional...letter, and if possible, send it to a mentor or colleague for a second look and helpful feedback!  What ...     Additional Resources on the Addgene Blog Learn to Develop Your Professional Network Become A Good...

  40. pCXLE toolkit: Efficient episomal plasmid-based method to reprogram peripheral blood cells to iPSCs

    Type
    Blog Post
    Published
    Dec. 14, 2017, 2:08 p.m.
    ...A little over a decade back when Yamanaka and colleagues reported that it is possible to reprogram differentiated...fibroblasts and keratinocytes to peripheral blood mononuclear cells (PBMCs). PBMCs isolated from whole blood...Episomal vectors are based on the Epstein-Barr Nuclear Antigen-1 (oriP-EBNA-1) system where each vector... peripheral blood mononuclear cells...
Showing: 401 - 440 of 839 results