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Showing: 861 - 880 of 1140 results
  1. Streaking for Single Colonies: The Streak Plate Challenge

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    Blog Post
    ...the blog Resources on Addgene.org Find fluorescent protein plasmids at Addgene Find chromoprotein plasmids...a redo :-( @SandTBioSci #CompetitiveStreaking @Addgene pic.twitter.com/mk44J4Gcj9 — Dave W will get vaccinated...found the chromoprotein plasmids available from Addgene, he knew it would be a perfect fit for the streak...biology. “What I'd like to do with the plasmids from Addgene is have the students transform them into different...transformation experiment, he plans to show how different genetic backgrounds of the host strains affect transformation... Youtube:     Additional resources on the Addgene blog Read our other blog posts on fluorescent ...plasmids at Addgene Check out additional written and video protocols ...
  2. New Viral Vectors - March 2024

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    Blog Post
    ...AAV9 Optogenetics Adesnik New viral vector pAAV-nEF-Con/Foff DREADD Gi-mCherry AAV8 Chemogenetics Deisseroth...latest in Addgene's viral vectors services and resources!   More resources on the Addgene blog Addgene's...What's new in Addgene's ready-to-use viral vectors repository? Quite a bit! In this post, we'll share...Table 1: New ready-to-use viral vectors in the Addgene repository  Name Serotype Category Depositor...the full viral services collection or check out Addgene's Data Hub to view viral vector reports from other...
  3. Live and Let Dye: Self-Labeling Protein Tags

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    Blog Post
    ... Ligands GCE4All: Making Genetic Code Expansion Accessible Addgene's Genetic Code Expansion Collection... & Small Molecule Fluorophores. Addgene Blog. https://blog.addgene.org/better-dyeing-through-chemistry-small-molecule-fluorophores... is now the most popular self-labeling tag in Addgene’s collection. CLIP-tag: Also in 2008, Kai Johnsson...specific with a small and minimally-disruptive genetic tag on the protein of interest. Table 1: Summary...are the most popular self-labeling enzymes in Addgene’s collection, so you may be able to get a plasmid... Pick, H., Vogel, H., & Johnsson, K. (2003). A general method for the covalent labeling of fusion proteins...10.1021/acs.biochem.1c00258 More resources from Addgene Better Dyeing Through Chemistry Illuminating Choices...
  4. 500,000 Plasmids Shipped and Counting!

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    Blog Post
    ...shipping look like at Addgene? Here's an inside peak into the daily workings in Addgene's lab. We ship individual... all drive Addgene to succeed and to improve, so thank you. 500,000x Thank You! Addgene's new location...Yesterday we hit a huge milestone here at Addgene – 500,000 plasmids shipped! That's a 1/2 million plasmids...with shipping labels and paperwork. Our stacks of Addgene boxes are now ready to be sent around the world...distributed plasmids as of March 26, 2015. How does Addgene make it happen? Our awesome team of Addgenies! ...Cambridge, MA 02139 Have a question? Email: help@addgene.org Call: +1 (617) 225-9000         ...
  5. Great Results Start with Great Standard Curves

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    Blog Post
    ...resources on addgene.org Addgene's Antibody Guide Addgene's Ready-to-Use Antibody collection Addgene's Recombinant...create and use a standard curve and provide some general considerations for scientists planning to use them...for the known concentrations (standard curve), generating an equation that allows you to determine the ... triplicate. The closeness of the data points generated by replicate values provides useful information.... With the help of graphing software, you then generate a trendline for the data. The appropriate trendline...R2 never dip below 0.95! More resources on the Addgene blog Antibodies 101: ELISAs The Four ELISAs and...
  6. DNA Purification Without a Kit

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    Blog Post
    ...fresh columns, regenerated columns had similar DNA yields. Additionally, columns regenerated up to five times...DNA This kit-free plasmid miniprep protocol from Addgene follows a similar workflow as a column-based plasmid...cellulose dipstick. Image: Zou et al., 2018. Regeneration of silica columns for DNA purification Starting... and Deng labs developed a simple method for regenerating silica columns that come with PCR product purification...before a wash with ddH2O and then ethanol. After regeneration, trace amounts of DNA (3 femtograms/ul) could...in the comments! Additional resources on the Addgene blog Read our Plasmids 101 blog series Find other...our plasmid cloning blog posts Resources on Addgene.org Find protocols for molecular biology and cloning...
  7. Networking and Inspiring Young Scientists at Freshers Fairs

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    Blog Post
    ...touch! Resources at Addgene Read Our Posts on Networking Get Career Advice from Addgene Bloggers Learn How...and some of the great biological societies that Addgene has had the opportunity to work with at Freshers...the the University of Cambridge and within the general public. The society organises talks by prominent...graduate students, postdocs, faculty members, and the general public. Chemical Society in University College ...develop a range of talks for both students and the general public, career events, and networking meetups. ...outside academia. Inspiring future scientists At Addgene, we’re incredibly glad to see these biological ...society or event which would benefit from some Addgene support? Please get in touch, as we aim to support...
  8. The Fluorescent Vegetables in Aptamer Soup

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    Blog Post
    ...If you’re been following Addgene on #souptwitter or if you just enjoy a warm meal on a winter day, you...molecule into the cell. The fluorescence that is generated allows for qualitative and quantitative measurement...placing the aptamer downstream of a known promoter. Addgene’s Plasmids 101: Aptamer Fluorophores describes the... we’ll take a deeper dive into the content of Addgene’s aptamer soup by exploring the development and ...and applications of fluorescent RNA aptamers in Addgene’s collection. Green fluorescent aptamers Spinach...s group created Spinach2 using site-directed mutagenesis of Spinach. In doing so, they identified the ...changes in intracellular viral rna." Journal of General Virology 98.5 (2017): 992-1003. PubMed PMID: 28555544...
  9. Viral Vectors 101: Transductions

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    Blog Post
    ...Resources on Addgene.org Generating Stable Cell Lines with Lentivirus Virus Handling and Storage Addgene Viral...Viral Services Resources on the Addgene blog Viral Production at Addgene Viral Vectors 101: What is a Virus...infiltration into a cell. The twist is that the typical genetic cargo — the viral genome — is swapped, at least... viral genome has been swapped for alternative genetic cargo, they can’t reproduce more functional viruses...   Is there an easier way? In fact, there is! Addgene has a number of ready-to-use viral preps available...
  10. Fluorescent Biosensors for Measuring Autophagic Flux

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    Blog Post
    ... autophagy biosensors currently available from Addgene. Rosella autophagy biosensor Rosella is a dual-...-targeted and mitochondria-targeted Rosella at Addgene! Keima autophagy biosensor Keima is a mammalian...Find the mitochondria-targeted Keima variant at Addgene! mRFP-GFP-LC3 tandem fluorescent protein This autophagy... red puncta. Find the mRFP-GFP-LC3 plasmid at Addgene! GFP-LC3-RFP-LC3∆G: A fluorescent probe that releases...translation, this fusion protein is cleaved to generate one molecule of GFP-tagged LC3 for every one molecule... flux.   Find the GFP-LC3-RFP-LC3∆G plasmid at Addgene! References Klionsky, Daniel J., Ana Maria Cuervo...PMCID: PMC5618514. Additional resources on the Addgene blog Beware of fluorescent protein oligomerization...
  11. Hot Plasmids: FRET-Based Biosensors

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    Blog Post
    ...his genetically encoded magnesium sensor, the first of its kind. “I hope by depositing at Addgene, people...Institute for Neurobiology has been working on genetically encoded indicators of calcium and other small...Twitch calcium sensors, which are available at Addgene, can be used for ratiometric in vivo imaging. Griesbeck... of the standard organisms for which extensive genetic tools are available. While he recognizes that some...PubMed) Lindenburg et al. MagFRET: The First Genetically Encoded Fluorescent Mg(2+) Sensor. PLoS One. ...(PubMed) Interested in More Hot Plasmids from Addgene? Check out our Hot Plasmid page, where we highlight...some of the popular & newly available plasmids at Addgene. If you're interested in plasmids for in vivo imaging...
  12. New and Upcoming Viral Vectors - September 2019

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    Blog Post
    ... pAAV.hSynap.iGABASnFR (112159-AAV1) Optogenetics Optogenetics continues to be a useful method for manipulating...viral vectors 101 eBook Resources on Addgene.org Learn about Addgene's viral service Find viral protocols...serotype testing Calcium sensors and GABA sensors Optogenetics Recombinases And more! Control AAV For many...Recombinase AAV Targeting and manipulating specific, genetically-defined neuronal populations with intersectional...pGP-AAV-CAG-FLEX-jGCaMP7f-WPRE (104496-AAVrg) Optogenetics pAAV-hSyn Con/Fon hChR2(H134R)-EYFP (55645-...55645-AAV5)  Additional resources on the Addgene blog Read all of our viral vectors blog posts Find tips...
  13. 25 Work From Home Tips for Scientists

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    Blog Post
    ...began working remotely recently? Most of us at Addgene began working from home last week to flatten the...new. We usually have yoga class twice a week at Addgene HQ, but now we’re sharing links to online yoga ...before bed will help you prepare for sleep. At Addgene, our mindfulness group is sticking with their Headspace...virtually connected with the people in your life. At Addgene, we’ve started virtual activities like team lunches...being safe. @GHP_HarvardChan — Shekhar Saxena (@ssaxenageneva) March 16, 2020 Give back to your community...societies hosting virtual networking events. Download Addgene’s Science Career guide to learn more about career...framework to design your future experiments.  Use Addgene’s AAV Data Hub. You can search the AAV Data Hub ...
  14. Scientific Reproducibility - Focusing on Solutions at the Minisymposium on Reproducibility

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    Blog Post
    ...more. Being that this is the Addgene Blog, I’ll, of course, mention Addgene as a source of sequenced and...event, I gave my own talk on reproducibility at Addgene and here I summarize what I learned both in preparation...31 - 49:45 - Reagent Sharing - Susanna Bachle, Addgene the nonprofit plasmid repository 49:45 0 1:18:45...new ways of understanding how the body works, generating new therapeutics, and sometimes formulating new...viral vectors. When working with a plasmid from Addgene, you can be confident that you’re using the actual...hosted by individuals and by organizations like Addgene (a good example is our series of blog posts on ...Initial positive results and the excitement they generate can, however, bias us. We’ve all heard stories...
  15. Viral Vectors 101: Biosensors

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    Blog Post
    ... on the Addgene blog An Overview of AAV Encoded Calcium Biosensors Illuminating Epigenetics with a ... systems that measure biological phenomena by generating an output which is directly proportionate to ...antibody, enzyme, DNA, etc. The receptors job is to generate a quantitative signal upon recognizing the analyte... (fluorescence, pH, etc.). The transducer will generate a numerical value which represents the amount ...: Almost all of the biosensors discussed are genetically encoded, and luckily, we have pre-designed plasmids...disciplines! Most of the sensors designed for calcium generate a fluorescent output, which will turn on, change.... DOI: 10.3389/fncel.2019.00474 Resources on Addgene.org Fluorescent Proteins: Biosensors Viral Service...
  16. Choosing a CRISPR Nuclease: Site Accessibility, Specificity, and Sensitivity

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    Blog Post
    ...and Jennifer Doudna Labs used targeted mutagenesis to generate hyper accurate Cas9 (HypaCas9). This nuclease...frequently used Cas9, spCas9 from Streptococcus pyogenes, this sequence is 3’-NGG. But Cas9s found in other...exhibit enhanced site accessibility In order to generate a genomic alteration at a specific location, it... sites. Using a combined random and directed mutagenesis approach, the Anna Cereseto Lab created pX-evoCas9...the Jungjoon Lee Lab used directed evolution to generate Sniper-Cas9 resulting in a Cas9 with improved ...PMCID: PMC6255809.  Additional resources on the Addgene blog Read our CRISPR 101 blog posts Find more ... Download the CRISPR 101 eBook Resources on Addgene.org Visit our CRISPR plasmids and resources page...
  17. We’re Going Viral This Week!

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    Blog Post
    ...and learn more about Addgene’s viral service. Additional resources on the Addgene blog Download our Viral...service, and now we’re “going viral” again! #AddgeneGoesViral on Twitter Starting today, our Twitter feed... in the graphic below. Follow the hashtag #AddgeneGoesViral to find information on the basics of viral...applications, and some new resources available from Addgene. There’s a lot to talk about! And by the way, there...reagents and data, we’re also publishing research. Addgene’s research team also investigates new strategies... posts Learn more about AAVs Resources on the Addgene website Visit the AAV Data Hub Learn more about...
  18. The Breast Cancer Microenvironment: A Tumor’s Backstage Team

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    Blog Post
    ...are tumor microenvironments made of?  A tumor’s genesis is divided into 3 phases: initiation, progression...that can be transferred to other cells, inducing epigenetic changes in targeted cells. In this case, exosomes...formation by inhibiting cell growth, invasion, and angiogenesis (Allinen et al., 2004). In fact, Sanford H. ...influence tumor microenvironments: immunology and angiogenesis (Witz et al., 2009). Then, scientists began ...Fernando Schmitt. "Microenvironment in breast tumorigenesis: Friend or foe?." Histology and histopathology...PubMed PMID: 20036813. Additional resources on the Addgene blog Read our cancer related blog posts Learn ...about the tumor microenvironment Resources on Addgene.org Visit our cancer research plasmids and resources...
  19. Announcing the Winners of the 2021 Michael Davidson and Roger Tsien Commemorative Conference Awards

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    Blog Post
    ...developed a dual virus system using both optogenetics and chemogenetics to study the activity of parvalbumin...in the lab. He has recently developed a third-generation intensiometric glutamate sensing fluorescent ...catalyzes the desulfuration of 3-mercaptopyruvate and generates an enzyme-bound hydropersulfide that is then transferred...withdrawal before they occur.  First, she used a genetic method to tag neurons activated by opioid withdrawal...light activates the neurons (via oChIEF) and a chemogenetic agonist inhibits the neuron (via hM4D). She ...postdoc at Harvard University where she engineers genetically encoded voltage indicators. Tian developed a ...optimize a red‑shifted archaerhodopsin‑derived genetically encoded voltage indicator which had improved ...
  20. CRISPR 101: Cytosine and Adenine Base Editors

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    Blog Post
    ...mouse inner ear. Fourth-generation cytosine base editors The fourth-generation base editors, BE4, reduce...activity.  Find CRISPR base editing plasmids at Addgene Improving cytosine base editing scope and efficiency...18 bases upstream of the PAM.  David Liu’s lab generated BE3 variants with other deaminases: AID, CDA1,...these three improvements represent the fourth generation of base editors. Compared to BE3, BE4 offers ... phage-assisted evolution selection systems to generate ABE8e(TadA-8e V106W), which edits ~590-fold faster...., 2020). This is important because ABEs have generally been slow, meaning that the Cas9 domain often ... N. M. (2023). Improved cytosine base editors generated from TadA variants. Nature Biotechnology, 41(5...
Showing: 861 - 880 of 1140 results