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Showing: 881 - 900 of 1089 results
  1. Plasmids 101: How to Verify Your Plasmid Using a Restriction Digest Analysis

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    Blog Post
    ...cleaving sequences which are similar, but not identical, to their defined recognition sequence. Most enzyme... I hope these tips demonstrate that plasmid verification is not just necessary but also an easy process.... Please vist Addgene's resource for plasmid verification to find additional tips and detailed protocols...
  2. Improved Plasmid Maps Powered by SnapGene

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    Blog Post
    ...powered plasmid maps far easier to navigate. These practical and effective changes will give you the ability...promoters, origins, tags, and certain ORFs. Their sophisticated detection algorithm easily and precisely identifies...feature names, locations, sizes, colors used to indicate them on the map, direction (if relevant), and ...
  3. Behind the scenes: Addgene’s new search engine and more

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    Blog Post
    ..., partial words, phrases, partial phrases, or numerical identifiers. We also combine the different terms... higher than matches of the same name in the publication field. Suggestions We provide as-you-type suggestions...PI labs and institutions. There are many more technical details that make our new search engine unique...
  4. Choosing a CRISPR Nuclease: Site Accessibility, Specificity, and Sensitivity

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    Blog Post
    ...off-target activity, which may be undesirable in many applications. At the time of our first blog post on choosing...CRISPR-Cas9 to increase its specificity." Nature communications 9.1 (2018): 3048. PubMed PMID: 30082838. PubMed...CRISPR-Cas12b for human genome editing." Nature communications 10.1 (2019): 212. PubMed PMID: 30670702. PubMed...
  5. Viral Vectors 101: Gamma-Retroviral Packaging Systems

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    Blog Post
    ...transfer plasmid sequences into the host genome. Typically, it is the sequences between and including the...pseudotyping.   Figure 1: Genome of a prototypical gamma-retrovirus.    Frequently asked questions... be used interchangeably. Are γ-retroviruses replication incompetent? Yes, as with lentiviruses, the genes...
  6. Building and Validating Recombinant Antibodies: A Case Study

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    Blog Post
    ...cDNA, which  was used as a template for PCR amplification with a degenerate primer set to amplify IgG ...  While screening by IF-ICC worked well for identification of the correct clones, it was determined that...through functional assays. Following functional verification, the R-mAb expression plasmids were DNA sequenced...
  7. Antibodies 101: Isotypes

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    Blog Post
    ... Isotype controls are used in antibody-based applications including flow cytometry, immunohistochemistry...chain constant regions result in several unique physical characteristics of these five isotypes, such as...their heavy chain constant domains. These are typically numbered, i.e. IgG1, IgG2, etc. Let’s dive in ...
  8. Expanding the Targeting Scope and Editing Efficiency of Adenine Base Editors

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    Blog Post
    ... specific DNA base changes and consist of a catalytically impaired Cas protein (dCas or Cas nickase) fused... SpCas9. In order to expand the gene-editing applications and targeting scope of ABEs David Liu’s lab ...through many rounds of mutations, selection, and replications per day.  The PACE and PANCE systems use M13...
  9. Seven Tips for Using LinkedIn as a Scientist

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    Blog Post
    ... example, I will often see a whole bunch of notifications “a postdoc from this Uni viewed your profile...examples of concrete accomplishments in both the technical and “plus skills” areas. Include a professional...look straight at the camera. Pro tip: Turn off notifications to your network of profile changes. If you are...
  10. Reproducibility for Everyone: Lessons from an Open Science Collaboration

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    Blog Post
    ...Not everyone in the group was able to make it physically to instruct the workshop at the conference, but...mini-grant, which will fund a project to support a dedicated website to host all the materials in one place...for me was to collaborate with this incredibly dedicated team. Many thanks to Tyler Ford, Caroline LaManna...
  11. Channelrhodopsins with improved light sensitivity for minimally-invasive optogenetics

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    Blog Post
    ... the flick of a light switch. Neurons are not typically persuaded to fire when light is shined on them...directed evolution, because channelrhodopsins are typically evaluated with low-throughput methods such as ... midbrain, fiber-optic cannulas were still stereotaxically implanted into the mice’s brains so that light...
  12. Plasmids for Endogenous Gene Tagging in Human Cells

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    Blog Post
    ...s outer membrane and allows the components to physically enter the cells so they can go to work. ...Allen Cell Explorer, where you can also find the certificate of analysis provided with each cell line. The...
  13. Meet an Addgenie: Insights into Grad School, Career Paths, and More

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    Blog Post
    ... and hoping to pursue. The choice to not go to medical school was devastating. At the same time, she has...circumstance. She was working as a research and technical assistant, when her life changed––she had a daughter...to your values While going through the co-op application process, my advisor encouraged me to keep my ...
  14. Lab Automation at Addgene

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    Blog Post
    ...efficient. Here, I’ll discuss transformation, DNA purification, and filling vials with agar. I’ll also provide...greater than 95% success rate! Automating DNA purification We're developing ways to prep large quantities...bacteria through the mail due to laws concerning genetically modified organisms. Since Addgene is very proud...
  15. Plasmids 101: FLEx Vectors

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    Blog Post
    ...using either loxP or lox511 sites, leaving two identical sites on one end of the DNA fragment (Figure 1...recombination event then excises the DNA between the identical loxP or lox511 sites (Figure 1, bottom). Since...presence of Cre recombinase. This plasmid now specifically drives expression of mCherry instead of BFP....
  16. Quick Guide to Working with Drosophila Part 1: Getting Started with Flies

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    Blog Post
    ...directions. Drosophila are very easy to manipulate genetically and have limited genetic redundancy (meaning,...reference of various fly phenotypes, check out the Classical Genetics Simulator website. One interesting thing... from mutations in the gene, and whether any publications have mentioned the gene. The Bloomington Drosophila...
  17. Tips to Make the Most of a Scientific Conference

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    Blog Post
    ...instances. If your poster material is nearing publication, consider uploading your work to a preprint server...time to meet. Some conferences may also have a dedicated app with a social media component, but if it doesn...other posts on scientific sharing, scientific communication, and scientific networking Learn how to set ...
  18. Plasmids 101: Degron Tags

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    Blog Post
    ...their fused protein under certain conditions (typically the addition of an exogenous small molecule). ...in size from several kDa up to ~35 kDa and are typically knocked-in via gene targeting or cloned in-frame... F-box protein must be expressed (inducibly, ectopically, stably… it’s your call). The TIR1 F-box protein...
  19. Plasmids 101: 5 factors to help you choose the right cloning method

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    Blog Post
    ...however, your cost per cloning reaction drops dramatically, as one tube of enzyme should be enough for ...there is no need for restriction digests, gel purifications, or ligations. The general Gateway cloning protocol...Chaokun, et al. "FastCloning: a highly simplified, purification-free, sequence-and ligation-independent PCR ...
Showing: 881 - 900 of 1089 results