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Showing: 381 - 400 of 832 results
  1. Quickest Way to Deposit Plasmids: The Deposit Spreadsheet

    Type
    Blog Post
    Published
    March 8, 2017, 3:15 p.m.
    ...glycerol stock. Choose from: ampicillin, apramycin, blasticidin, bleocin (zeocin), chloramphenicol, erythromicin...box for the “Purpose” field. If you ever have a question about what should go into a cell, hover over the...Distribute pending QC. The name of the Principal Investigator and Organization where your plasmids were first...in March 2017 and updated by Angela Holmes and Christina Mork in February 2024.    Additional Resources...
  2. Split-BioID: An Improved Method for Studying Protein-Protein Interactions

    Type
    Blog Post
    Published
    May 1, 2018, 1:57 p.m.
    ...and overlapping complexes that have distinct functions. Many existing methods for identifying PPIs, such...additional interacting factors. Problems with Existing Methods for Studying Protein-Protein Interactions... biotinylated. This makes it’s impossible to distinguish proteins that directly interact with the bait...
  3. Plasmids 101: In-house NGS Plasmid Quality Control Now at Addgene

    Type
    Blog Post
    Published
    April 6, 2021, 12:30 p.m.
    ...changeover had no impact on our ability to provide requesting scientists high quality data! Addgene's new ... example, the CAG promoter, a hybrid promoter consisting of a CMV enhancer, chicken beta actin promoter... that is useful, but not 100% complete, we will still make this data available as a partial sequence with...develop a PCR strategy suitable for the library in question. We will order primers that can amplify the insert...
  4. Hot Plasmids and Viral Preps - March 2021

    Type
    Blog Post
    Published
    March 23, 2021, 1:15 p.m.
    ... to modify chromatin. A fluorescent protein can still be included for visualization purposes, but the ...flexibility of the single-pot system will allow investigators to rapidly create multiple synthetic chromatin-modifying...CRISPR plasmids for Borrelia burgdorferi from Christine Jacobs-Wagner’s lab produce different levels of...pooled library from Keith Joung’s and Benjamin Kleinstiver’s labs are now available. These libraries encode...
  5. Adenoviral Vector Production and Troubleshooting

    Type
    Blog Post
    Published
    June 14, 2018, 11:44 a.m.
    ...transduced cells and loss of transgene expression (Interestingly, the strong immunogenicity of AdVs is what makes...virion is a non-enveloped particle of ~100 nm, consisting of a capsid surrounding an inner core which contains...use of this system. New and improved systems are still being developed. A detailed protocol for production...mL of sample. The purity of the sample can be estimated by looking at the ration of DNA (260nm) versus...
  6. Twenty Years of Addgene Sharing: CRISPR

    Type
    Blog Post
    Published
    April 18, 2024, 1:15 p.m.
    ...kinds of CRISPR tools people were depositing and requesting each year (Figure 2). We did a similar analysis...2012 to 2023; data are smoothed using locally estimated scatterplot smoothing. (C) Number of requests ...continue to develop and share new tools, while our requesting labs continue to request and use new tools. Because... each country. Countries shown are the top 10 requesting countries. FR=France; KR=South Korea; CH=Switzerland...
  7. 3D Printing Meets CRISPR Cas9

    Type
    Blog Post
    Published
    Oct. 17, 2017, 12:55 p.m.
    ...impressive, full-color images of proteins. But they are still flat. To truly appreciate the 3D structure of these...models function as thinking tools – eliciting questions like “what does this model representt?" ... "how...creating physical models of proteins that are being investigated in their labs. Soon after we began working with...of the night dreaming about the conformational gymnastics that this protein must undergo as it interrogates...
  8. Academic vs. Industry Postdocs

    Type
    Blog Post
    Published
    Nov. 13, 2018, 1:22 p.m.
    ...have specific web sites for postdoc listings, so the method of posting varies between companies. Like most...that they were having a positive experience, I was still incredibly nervous about leaving academia. A lot...seen listed as a requirement on some industry job postings. Also, if you work in industry for any length ...
  9. Tips for a 1st time AAV user (by a Rookie AAV user)

    Type
    Blog Post
    Published
    Oct. 23, 2018, 11:49 a.m.
    ...Restriction digest screening for ITR deletion is still necessary. To save time and money, I like to miniprep...Production protocol, I take a lazier approach for harvesting my AAV. I skip the PEG precipitation of the HEK293...PEG solution. PEG takes several hours on a heated stir plate to dissolve and requires monitoring so that...autoclaving, which also takes time. Rather than investing all of this effort in preparing reagents, I choose...
  10. Hot Plasmids and Viral Preps - May 2021

    Type
    Blog Post
    Published
    May 18, 2021, 1:15 p.m.
    ...within a multi-tRNA synthetase complex, the team investigated whether the generated antibodies could bind ...myo-inositol oxygenase), providing enzyme protection while still allowing substrates and products to diffuse freely...encapsulated enzyme produced 20% more D-glucaric acid, suggesting that MPyV system can improve metabolic pathway... a ready-to-use viral prep in serotype AAV1. Distinguish dendritic neurites from axonal neurites with ...
  11. Transferable Skills: Negotiation

    Type
    Blog Post
    Published
    March 3, 2022, 2 p.m.
    ...as a creative problem-solving exercise? Asking questions like the below can help you understand the perspective... related to the actual data collection task but still be beneficial to both.  Coming up with creative ...with the company so they know I’m excited while still being able to take my vacation? I want to learn ... How can I negotiate to show the company that investing in me is also beneficial to them? I have an idea...
  12. Quick Guide to Working with Drosophila Part 1: Getting Started with Flies

    Type
    Blog Post
    Published
    July 13, 2017, 2:30 p.m.
    ...important to isolate females from males while they are still virgins. Females begin mating ~6 hours after hatching...the Classical Genetics Simulator website. One interesting thing to know is that males do not recombine ... of Fly Pushing by Ralph J. Greenspan. It’s a fantastic book for newbies on how to work with flies. ... convince him to use Twitter @jonchowphd but he still reads “#” as a “pound symbol”. Additional Resources...
  13. Tips for Using BLAST to Verify Plasmids

    Type
    Blog Post
    Published
    May 29, 2014, 1:29 p.m.
    ... the “Align two or more sequences” option to drastically reduce waiting time for search results. Optimizing...with the "Align two or more sequences" option and pasting your expected protein sequence into the Subject...webservices/#pairwise_sequence_alignment_psa Happy BLASTing! Do you have any tips for using BLAST to confirm...plasmid sequencing results or comments on our suggestions? Share your thoughts here to help other labs ...
  14. Antibodies 101: Producing Recombinant Antibodies

    Type
    Blog Post
    Published
    Aug. 13, 2024, 1:15 p.m.
    ...2020). Harvest and purification At its core, harvesting recombinant antibodies consists of separating...Created with biorender.com   Another method of harvesting uses magnetic beads. In this method, beads are... the efficacy of our antibodies through stress testing. An aliquot of our recombinant antibodies is stored...assays showed that the majority of antibodies are still equally effective compared to those aliquots frozen...
  15. CRISPR 101: Making a Knock-In Cell Line

    Type
    Blog Post
    Published
    Dec. 22, 2022, 2:15 p.m.
    .... To kick off a knock-in experiment the first questions are where, which, and what. Identify where in ...like to introduce the edit. Finally, you must stipulate what sequence to introduce, which is done through...HDR edit, you can try one or more of the below suggestions. Disable the other repair mechanisms Mammalian...! Cas12a is a Cas family member which generates sticky ends upon cutting. Cas12a may promote HDR by generating...
  16. Simplify Cloning with in vivo Assembly

    Type
    Blog Post
    Published
    Oct. 18, 2018, 12:37 p.m.
    ...is currently investigating the molecular biology of synaptic transmission and plasticity.     Javier García-Nafría...co-transformation with linearized vector backbone. DpnI digestion - 1 μl DpnI is added to the PCR mix to remove ... García-Nafría is an investigator scientist at the MRC Laboratory of Molecular Biology. He is interested...
  17. New Optimized Genome-wide CRISPRko, CRISPRi, and CRISPRa Libraries

    Type
    Blog Post
    Published
    Oct. 4, 2018, 12:44 p.m.
    ...-wide screens to effectively and efficiently investigate gene function. CRISPR libraries can be used to...labs of David Root and John Doench at the Broad Institute have developed human genome-wide CRISPRko (knock...lowly expressed genes or genes that are more drastically affected by gene activation rather than depletion...resistance in A375 cells. The SAM system (CRISPR/Cas9 Synergistic Activation Mediator) uses an improved activator...
  18. Introducing Addgene's New Search - Find Plasmids More Easily For Your Research!

    Type
    Blog Post
    Published
    Dec. 3, 2019, 11:38 a.m.
    ...clicking the ‘Search’ button a new content-aware suggestion dropdown list will let you jump directly to the...types of searches including depositing labs and institutions. For example, search for “Melina Fan” and you... in Parkinson’s disease. Knowing the primary investigator where the plasmid was created can narrow your...plasmids specifically designed for this purpose: Still stumped? Ask an Addgenie The newly launched search...
  19. CRISPR 101: RNA Editing with Cas13

    Type
    Blog Post
    Published
    July 31, 2020, 12:30 p.m.
    ...editor, the lab started with the Cas13 scaffold, testing a whopping 21 Cas13a orthologs, 15 Cas13b orthologs... the plasmids for the RESCUE RNA editors here! Testing and improving RNA editing from the Cas13b REPAIR...knockdown is more precise than shRNA knockdown, it still displays substantial off-target activity. By mutating...Addgene. East-Seletsky, Alexandra, et al. "Two distinct RNase activities of CRISPR-C2c2 enable guide-RNA...
Showing: 381 - 400 of 832 results