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Showing: 361 - 380 of 983 results
  1. Oh, The Places You Can Go: Careers in Science Communication - Product Development

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    Blog Post
    ...teaches you how to design a course, how to design good lesson plans, how to design test questions, and...and how to design lectures. I really built a course from the ground up.”  Science writing and editing These... was for Cactus Communications, a company that provides scientific editing services. “I was working during...
  2. Addgene @ Keystone: Thoughts on Precision Genome Engineering and Synbio

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    Blog Post
    ...fly fishing, and local grizzly bear attacks. He described one such recent attack as "hilarious". Welcome... Mehmet Fatih Bolukbasi from Scot Wolfe's lab described a chimeric Cas9 that is improving the nuclease... and foremost, from the custom software used to design complex genetic circuitry to the downstream output...each, and Tim Lu even compared his "memory" gene codes to a Turing machine (also discussed in the book)...also got to show off our new CRISPR page (which describes how to plan your CRISPR experiment for our new...
  3. The Stingy Scientist: How the Baby Gel Box Was Born

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    Blog Post
    ...smaller gel apparatus until I settled on using glass slides. With just the right amount of agarose, I could...right amount so the agarose doesn’t pour over the sides.  These tiny gels and tiny lanes required less agar...satisfying?  With practice, I got good at this despite the fact that my lab mates thought this was hilarious...minimize the required area and buffer volume.  So, I designed my own gel box (see illustration above) and bribed...plastic and solder this thing together.  One of the downsides—there was no cover so you had to be careful not...
  4. Viral Genome Sequencing - A One Stop Shop for AAV Identity and Serotype Confirmation

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    Blog Post
    ...our AAV preparations. We recently published a description of the VGS process and use cases in Human Gene...ligation and tagmentation preparation approaches described previously require a preliminary double stranding... the expression cassette that we want, it also includes a small amount of spurious DNA from the packaging...plasmids. We decided to use this to our advantage by designing a Python script that looks for pre-defined serotype...signature sequences in the data. Unlike previously described thermodynamics-based methods of serotype confirmation...
  5. Celebrate Open Data Day with Addgene’s AAV Data Hub!

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    Blog Post
    ...technical data. These data focus on experimental design and usage of these tools, which aren’t always easy...experiment, use these questions as a guide for designing your future injection experiments. Have your data... exactly where to get that strain. Experimental design & methods: These questions are focused on injection...activate receptors? If you’re in the process of designing your experiment, read our blog post on important...to give proper attribution.  We hope that this provides a clear overview of what you need to submit data...
  6. RUBY-Red Siliques

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    Blog Post
    ... Antibiotic selection would only then kill the desired plants! PCR or fluorescent markers are currently... have similar drawbacks, often requiring the destruction of plants or tissue for GUS staining or are not...from heterozygous individuals. Only 1/4 of the descendants of the heterozygous plants, therefore, are useful...from these plants will be green, containing the desired mutation but lacking both RUBY and the construct...compared to other markers lends itself well to nondestructive selection. If RUBY was integrated into a CRISPR...
  7. Typing CRISPR Systems

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    Blog Post
    ..., J. C., Kyrpides, N. C., Banfield, J. F., & Doudna, J. A. (2018). Programmed DNA destruction by miniature...hierarchy: class to type to subtype to variant. Despite the seemingly complicated steps to arrive at this...largely underutilized compared to Class 2. Class 1 Despite their incredible abundance, Class 1 CRISPR systems...accessory Cas proteins in the Cascade complex. Despite a tenuous grasp on how type III systems function... III-E effector was developed, called Cas7-11. Despite being in Class 1, Cas7-11 is a single protein effector...
  8. Special Delivery: Fluorophore Targeting for FRET Studies

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    Blog Post
    ...package. One important concept in FRET experimental design is that the targeting specificity requirements ...codon (often amber i.e. UAG) engineered into a desired site. During translation, the novel tRNA/unnatural...so small, one can insert them in virtually any desired location in a target protein, though predicted ...it all together The FRET donors and acceptors described above can be paired together to measure a wide...combinations of labeling strategies. FRET experimental design lends itself to creativity and innovation, valuable...PMCID: PMC2802762. 2. Dumas, Anaëlle, et al. "Designing logical codon reassignment–Expanding the chemistry...
  9. Hot Plasmids - September 2019 - CRISPR, Auxin Inducible Degradation, MerMAID Channelrhodopsins, and Genome Looping

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    Blog Post
    ...almost complete desensitization when exposed to continuous bright light. Desensitization is mediated by...discovered Marine, Anion-conducting and Intensely Desensitizing ChRs) differ from currently used ChRs in that...regulation of many genes. A number of groups have designed means of studying the effects of endogenous looping... they call the LADL Anchor. Using specifically designed gRNAs, they can then recruit these LADL Anchors...
  10. Optimizing Donor DNA for Enhanced CRISPR Genome Editing

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    Blog Post
    ...DNA post-cut. Using substrate DNA labeled on both sides of the break, we determined that Cas9 held tightly... single or double stranded donor DNA with other design parameters. Example single stranded donor DNA and...approaches. Moreover, the cost of reagents is relatively modest, requiring expressed Cas9 protein, transcribed ... Blog Brush Up on Your HDR Basics Learn How to Design Your gRNA Find the Ideal CRISPR Software for Your...Plasmids for Your Research Check out Our List of gRNA Design Tools ...
  11. Management for Scientists: Delegating is Key

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    Blog Post
    ...Clearly articulate the desired outcomes. Begin with the end in mind. Specify desired results. Are you delegating...expect that one person will write all the copy, design every icon, curate all of the appropriate plasmids...criteria for delegating tasks appropriately: Are the desired goals and outcomes clear? If you don’t have clear...results. What does success look like? Agree on desired outcomes. Concern yourself with what is accomplished...
  12. Sharing is Caring: But How to Distribute Open Hardware?

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    Blog Post
    ...provide the construction plans or CAD (computer aided design) drawings of their devices, which makes it very...has allowed the community to regularly replicate designs worldwide. Distributing hardware via globally established...similar way to the biological protocol, and assembly designs based around the use of commercially available ...users outside the project to modify the raw and design files, allowing the device to take on a community-driven...of work from universities and research centers provides a potential conflict between traditional IP-based...
  13. Clear and Accessible Writing

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    Blog Post
    ... to our website through the use of alt text to describe images in online spaces. Alt text is used by screen...example. Remember, our goal is to use words to describe the image in a way that helps visually impaired... your alt text, use all of this information to describe the image helpfully. You and your readers are ...learned a lot from listening to others' alt text descriptions, and we’d love to hear yours as well.  More ...write alt text for any image you’re struggling to describe in the results. And many journals accept alt text...
  14. GPCRs: How Do They Work and How Do We Study Them?

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    Blog Post
    ...new receptors were termed Designer Receptor Exclusively Activated by Designer Drugs (DREADDs) (Roth, 2016...What do smell, taste and sight have in common, besides being one of the five senses? GPCRs or G-protein-coupled...photons or odorants, to elicit downstream signaling cascades.  So let’s break down the name "G-protein coupled...then induce or inhibit intracellular signaling cascades as a response to the extracellular stimuli. Ligand...
  15. Choosing a CRISPR Nuclease: Site Accessibility, Specificity, and Sensitivity

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    Blog Post
    ...Requirement and Expanding CRISPR Beyond SpCas9 described the PAM specificity of Cas9s isolated from different..., and NGCG). Since then, the Osamu Nureki Lab described a rationally engineered Cas9, SpCas9-NG, which...Nishimasu et al., 2018). The David Liu Lab similarly described xCas9, which displayed the ability to target multiple... also high off-target activity, which may be undesirable in many applications. At the time of our first...post on choosing a Cas9, the Feng Zhang Lab had described eSpCas9, while the Keith Joung Lab had developed...
  16. How to Keep a Lab Notebook for Bioinformatic Analyses

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    Blog Post
    ...instance, your Desktop directory contains the folders and files that you see on your desktop. The location...immediately write a text document with a brief description of the directory contents, at a minimum. This...for a single use, save the script as originalName_descriptionOfEdit in the same directory where it was ...Your Next Experiment Find Our List of CRISPR gRNA Design Tools ...
  17. Pooled CRISPR Libraries Offer Genome-Wide Control for Large-Scale Functional Screens

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    Blog Post
    ...first generation of CRISPR-Cas9 plasmids were not designed with gene activation in mind. “We had not managed...Konermann and her colleagues in Feng Zhang’s lab describe just such a system, which they call CRISPR/Cas9...from the structure to guide and improve activator design,” she said. “Before it was a little like tapping...instead of at the protein’s C terminus. With that new design in place, Konermann immediately saw an order of...consistency and validation with >80% effectively enriched guides per gene hit, and 100% validation of the top 10...
  18. Plasmids 101: Yeast Vectors

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    Blog Post
    ...element. This link provides a more extensive list of yeast auxotrophic markers and includes the associated...differ from the bacterial elements previously described. Why do scientists use yeast vectors? Yeast are... that come with working with prokaryotes. This includes but is not limited to: rapid growth, ease of replica...most commonly used selection markers in yeast and provides the element needed to overcome the auxotrophy ...
  19. Summer SciComm: Preprints

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    Blog Post
    ...been common in fields like math and physics for decades (see: arXiv.org), but have been only adopted by...course, preprints don’t replace journals and other modes of scientific communication. Researchers often post...to receive deposits of plasmids that have been described in a preprint. In fact, over 1,500 plasmids in...Depositing plasmids that were used in a preprint provides all the same benefits as sharing those plasmids...resources on the Addgene blog Summer SciComm Series: Modes of Communication Intro to Our Summer SciComm Series...
  20. What's New in CRISPR - November 2021

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    Blog Post
    ...different labs have recently published work that provides a solution to this problem. A miniature CRISPR-Cas...miniature CRISPR-Cas12f nuclease Quanjiang Ji’s lab describes an effective miniature Cas system that utilizes...Nature Biotechnology paper showcases an improved design of the guide RNA that caps the 3’ end with a structured...that mismatch repair (MMR) interfered with the desired resolution of prime editing intermediates. Building...sequence. As with other prime editing tools, the desired edits are templated by the 3′ extension of the ...
Showing: 361 - 380 of 983 results