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Showing: 381 - 400 of 460 results
  1. Mouse Modeling, Part 2: Breeding and Crossing Mice

    Type
    Blog Post
    Published
    Aug. 6, 2019, 12:55 p.m.
    ...one locus (e.g. Cre) and heterozygous at the other. 3. Breed your F1 generation Now, your goal is to generate...homozygous alleles at both of your genes of interest. About 1 in 4 mice will be homozygous for the mutation ...Find our Plasmids 101 blog posts Read blog posts about using Cre-lox Read our genome engineering blog posts... posts Resources on Addgene.org Find more about Cre-lox Read our Genome Engineering Guide Learn more...
  2. Plasmids 101: FLEx Vectors

    Type
    Blog Post
    Published
    April 28, 2016, 2:30 p.m.
    ...Genetic Analyses in Mice. 2004. PubMed PMID: 14723844. 3. Atasoy D, Aponte Y, Su HH, and Sternson SM. 2008.... Blog  Read about Other Means of Genome Engineering Using FLEx AAV Vectors? Learn about Viral Vector ...12665802. 2. Branda, CS and Dymecki, SM. Talking about a Revolution: The Impact of Site-Specific Recombinases...
  3. Tips for Titering Your Lentiviral Preps

    Type
    Blog Post
    Published
    March 15, 2016, 2:30 p.m.
    ...PMID: 16836756. PubMed Central PMCID: PMC1534021. 3. Zhang, Bing, et al. "The significance of controlled...drawback of this approach is that it can be quite labor intensive. Target cells are transduced with serial...
  4. 7 Simple Strategies to Resolve Conflicts with Difficult Supervisors

    Type
    Blog Post
    Published
    Jan. 21, 2015, 1:30 p.m.
    ... make it easy for your supervisor to support you. 3) Explain the problem and leave your emotions out of... I heard about supervisors in all of the above categories. In addition, I also learned about two other...Complainers, who spend most of their time moaning about their troubles, Silent or unresponsive clams, ... students and postdoctoral fellows are hesitant about expressing their ideas, especially if their supervisors...it is interfering with your work. Avoid talking about your emotions, such as frustration or anger, because... like the problem to be resolved You know more about your work than your supervisor does. You can save...Listen to your supervisor’s viewpoint and brainstorm about mutually beneficial solutions Your supervisor might...
  5. Lab Automation at Addgene

    Type
    Blog Post
    Published
    March 22, 2018, 1:28 p.m.
    ...two 96 well plates in just under 3 hours or one 96 well plate in about an hour. Automating vial fiIling... work into finding robots that’ll take a little labor off our hands. Good news! There is probably a machine...96 transformations in one run compared to doing about 50 transformations in the same amount of time by...machinery we have been able to transform 96 samples in about 4 hours with a greater than 95% success rate! Automating...35 minutes compared to a lab assisstant filling about 200 vials in 45 minutes by hand. How can you start...on each tube by hand. We’ll be sure to tell you about more lab updates as we develop them. In the meantime...
  6. Plasmids 101: In-house NGS Plasmid Quality Control Now at Addgene

    Type
    Blog Post
    Published
    April 6, 2021, 12:30 p.m.
    ...Originally published Aug 3, 2017 and last updated Apr 6, 2021 by Will Arnold. Introducing NGS in 2017...ask the depositing laboratory to review the discrepancies. If the depositing laboratory confirms that these...finish the library preparation process only takes about one day, even for six plates (576 individual plasmids... we perform a 2x251 run on our MiSeq that takes about two days to complete. After the run completes, we..." In some cases, there will be more information about our sequencing results in the Depositor Comments...to note the appropriate barcode for each sample. About 24 hours later we unload the FASTQ data from our...
  7. CRISPR 101: Mammalian Expression Systems and Delivery Methods

    Type
    Blog Post
    Published
    Sept. 24, 2015, 2:30 p.m.
    ...directly back to your specific goal. When thinking about step 3, however, you may be surprised at the number...Delivery methods for mammalian cell lines As mentioned above, the expression system you choose in many ways dictates.... The user should review the current literature about their preferred model.  If your expression system... Check out our CRISPR Featured Topic Page Learn about CRISPR Delivery Using Ribonucleoproteins (RNPs) ...
  8. Synthetic promoter AAVs for cell-type specific expression in retinal cells

    Type
    Blog Post
    Published
    March 12, 2020, 1:15 p.m.
    ...expression and high cell-type specificity.  Strategy #3 (ProC): Create promoters by repeating mouse cell type...Addgene blog Read more about using AAV for retinal gene therapy Find more about precise neuronal targeting...injected into macaques and postmortem human retinas. About 25% of these AAV synthetic promoters successfully...
  9. Quickest Way to Deposit Plasmids: The Deposit Spreadsheet

    Type
    Blog Post
    Published
    March 8, 2017, 3:15 p.m.
    ...deposit spreadsheet to complete Step 1. Steps 2 and 3 are usually very easy — our tech transfer team will...streptomycin, tetracycline, combinations of the above, or other. High or Low Copy Choose from: high...the “Purpose” field. If you ever have a question about what should go into a cell, hover over the cell ...Addgene and contact your technology transfer office about the MTA. Pro Tip! Download a new spreadsheet each...
  10. Tips for Using BLAST to Verify Plasmids

    Type
    Blog Post
    Published
    May 29, 2014, 1:29 p.m.
    ...more advantageous for your search. Timesaving Tip #3: Note that protein databases available are unlikely...such as full plasmid sequences provided by the laboratories that deposit their plasmids with us or other...mismatches and gaps in the alignment. If you are curious about the differences in the blastn programs, check out...Inside Look at NGS Plasmid Quality Control Learn about our Snapgene-powered plasmid maps. Resources on...
  11. Illuminating Epigenetics with A FRET Based Biosensor

    Type
    Blog Post
    Published
    Nov. 19, 2015, 3:30 p.m.
    ...PMID: 24552514. PubMed Central PMCID: PMC3929550. 3. Kaati, Gunnar, Lars O. Bygren, and Soren Edvinsson... the histone protein of interest (in the figure above, H3 at K9 or K27). Joined to this by a flexible ... in Your Experiments Post Read Other Blog Posts about Fluorescent Proteins  ...
  12. CRISPR 101: Ribonucleoprotein (RNP) Delivery

    Type
    Blog Post
    Published
    Sept. 6, 2018, 12:02 p.m.
    ...PMID: 25357182. PubMed Central PMCID: PMC4289409. 3. Rouet, Romain, et al. "Receptor-Mediated Delivery...scientists to make genomic alterations, bringing about a revolution in genome engineering, with new techniques...available by both the Jacob Corn and Alex Schier laboratories. Delivering Cas9-gRNA ribonucleoproteins  An...delivery of RNPs is electroporation (A in the figure above), which generates pores in the cell membrane, allowing...as lipid-mediated transfection (B in the figure above), are in the early stages of development. David ...proteins harboring receptor ligands (C in the figure above), which result in the internalization of Cas9-gRNA...show promise for in vivo studies, little is known about the immunogenicity and stability of the Cas9 protein...
  13. A Guide to Starting Your Own Journal Club

    Type
    Blog Post
    Published
    Feb. 6, 2020, 3 p.m.
    ...important is letting people know it’s happening. Aim for 3-4 weeks advance notice for the first meeting so that...think about. Choosing a topic and gauging interest The first thing to do if you’ve thought about starting... discussions. Beyond the excitement of learning about new cutting edge science, researchers of all varieties...help stay current on new and emerging work by collaboratively discussing recent publications in a specific...up. At Addgene, we wanted to think more closely about the wealth of high-throughput sequencing (HTS) data...the paper.  Before the first journal club, think about the meeting itself A journal club should aim to ...published science. They also serve as a way to learn about work outside of one's own field in a structured ...
  14. Drew Endy Introduces the Biobrick Public Agreement Plasmid Collection

    Type
    Blog Post
    Published
    Dec. 12, 2013, 3:35 p.m.
    ...Amplifying genetic logic gates." Science. 340, 599-603 (3 May 2013). Vivek Mutalik et al. "Precise and reliable...Foundation's Linda Kahl explains the Addgene collaboration this way: "Addgene is one of the leaders in ... our core values." Addgene spoke with Endy more about the BIOFAB and BIL gates plasmid kits, the Biobricks...reference to George Boole who in 1854 was thinking about logic and analyzing human language and observed ... freely available? Endy: When we start thinking about languages, humans have two types of languages: one...does; it's free to use and that tends to be true about most successful human-to-human languages. Who owns...signals. Let's say I wanted to detect every primary metabolite in a cell. The only way to do that at scale right...
  15. Capturing a Moment with Marc Zimmer’s “The State of Science”

    Type
    Blog Post
    Published
    July 30, 2020, 1:15 p.m.
    ... of “Do-It-Yourself Science” described in Chapter 3, and of course the rapidly changing world of genome...have been written about CRISPR alone, and Zimmer himself has written entire books about optogenetics. Defining... been thinking about a long time. For the scientists who like to learn everything about one specific topic...wisely makes no such attempt. He is transparent about his own biases--many of which will be shared by ... a massive, expensive project that required collaboration from scientists around the world. The paper ...As a scientist who enjoys learning a little bit about many different things (part of the reason Addgene...
  16. Viral Vectors 101: Chemogenetics

    Type
    Blog Post
    Published
    July 11, 2023, 1:15 p.m.
    ...the IPD of a cation channel, such as the serotonin 3 receptor, will promote depolarization in neurons. ...posts Read blog posts about neuroscience Resources on addgene.org Learn more about chemogenetics in our...as a DREADD agonist due to its ability to be metabolized into clozapine (CLZ). While some scientists argue...
  17. Rabies and Neuronal Tracing

    Type
    Blog Post
    Published
    May 29, 2018, 1:51 p.m.
    ...2013 Mar 19;110(12):E1152-61 Pubmed PMID 23487772. 3. Etessami R, Conzelmann KK, Fadai-Ghotbi B, Natelson...connected to the neck. Shortly after, we learned about organs and the jobs they perform. This became foundational...part of the answer to many biological questions about the brain. To address this, molecular tools to map...
  18. PCR Applications for Copy Number Variation Assays

    Type
    Blog Post
    Published
    April 26, 2022, 1:15 p.m.
    ...quantitative real-time PCR. J Microbiol Methods. 2006 Jun;65(3):476-87. doi: 10.1016/j.mimet.2005.09.007. Epub 2005...controls must be run in triplicate.  The nice thing about qPCR is that since it measures relative quantification...number, albeit within a range of RQ values as noted above.   In both applications, results can be affected...
  19. CRISPR 101: Targeting Non-Coding RNAs with CRISPR/Cas9

    Type
    Blog Post
    Published
    Nov. 14, 2024, 2:15 p.m.
    ...human cell lines. Nucleic Acids Research. 2014;43(3):e17. doi:10.1093/nar/gku1198... to devise an experiment that can tell you more about its function.  Resources and references Resources...
  20. Addgene-Seeding Labs plasmid grant round 3: microbial drug resistance and biofilms, antidiabetic plant components, visualizing brain injury - and a glowing robot fish

    Type
    Blog Post
    Published
    Nov. 27, 2018, 2 p.m.
    ...Bachle and Ina Ersing Seeding Labs and Addgene collaborate to provide scientific resources, equipment, and...discovery, and synthetic biology. Read on to learn more about the five awardees and their promising research projects... to the Addgene blog for updates and future collaborations. Many thanks to all of the awardees, all who...Additional Resources on the Addgene Blog Learn More About the Addgene-Seeding Labs Plasmid Grant Check Out...Expression Systems Synthetic Biology Resources Learn about Global Plasmid Distribution ...
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