Skip to main content

We narrowed to 822 results for: Tes

Showing: 441 - 460 of 822 results
  1. Viral Vectors 101: Gamma-Retroviral Packaging Systems

    Type
    Blog Post
    Published
    Aug. 6, 2024, 1:15 p.m.
    ... packaging cell line. This system provides the greatest flexibility to pseudotype γ-retrovirus using different...post‐transcriptional regulatory element; sequence that stimulates the expression of transgenes via increased nuclear...U5 and the rest of the provirus. 3’ LTR Terminates transcription started by 5' LTR by the addition...
  2. Antibodies 101: Flow Cytometry Controls

    Type
    Blog Post
    Published
    June 6, 2024, 1:50 p.m.
    ...companies or check the literature. Pro tip! Early gates, like your live/dead markers or commonly used markers...specific cell populations, often used in the later gates, are more likely to require FMOs. Isotypes Isotype...rather than for setting up your initial voltages and gates. Ashlyn has a research background in CD8+ T cells...
  3. Viral Vectors 101: Viral Applications

    Type
    Blog Post
    Published
    April 13, 2023, 1:15 p.m.
    ...be used to express proteins. Viral expression cassettes typically contain a promoter (inducible or constitutive...lineage, and so much more! Libraries allow you to test thousands of elements simultaneously in your system...dose. Vaccine development strategies. Image courtesy of Gorry et. al, 2007.   Clinical applications...
  4. Giving gRNAs a Facelift - Synthetic and Beyond

    Type
    Blog Post
    Published
    Oct. 20, 2022, 1:15 p.m.
    ...repeat region on its 3’ end. This repeat region associates with the trans-activating crRNA (tracrRNA) which...at the same site, is 2’-fluoro (2’-F), which substitutes a fluorine for the hydroxyl group at the 2’ position...coupling several of them together, for example phosphorothioates with 2’-O-methyl modifications, proved more...
  5. Hot Plasmids - May 2022

    Type
    Blog Post
    Published
    May 26, 2022, 1:15 p.m.
    ... both on and off target. Across all loci tested, error rates overall ranged from 0.3% to 10%, in comparison...Importantly, this is true in both mice and nonhuman primates (for AAV.CAP-B10, for example).  Given that the...
  6. Plasmids 101: Screening Strategies Used in Plasmid Cloning

    Type
    Blog Post
    Published
    Sept. 15, 2020, 1:15 p.m.
    ...below). Plating the transformation on ampicillin plates containing X-gal allows you to identify cells that...that when a portion of the gene is deleted, it creates a non-functional 𝛽-galactosidase. Complementing...this deleted portion, for example on a plasmid, creates a functional 𝛽-galactosidase. Blue-white screens...
  7. Fluorescent CRISPR Reporters: SRIRACCHA and GEmCherry2

    Type
    Blog Post
    Published
    May 26, 2020, 1:15 p.m.
    ...can rapidly and efficiently evaluate Cas9 cutting sites and activity (Knudsen et al., 2018).  To create ...lab compared editing at three different genomic sites in the AAVS1 locus using GEmCherry2. In this experiment...again that sgRNA structure and genomic recognition sites play a large role in CRISPR-Cas9 efficiency. They...
  8. Opto-Nanobodies: Using Light to Manipulate Cell Signaling and Protein Purification

    Type
    Blog Post
    Published
    Nov. 19, 2019, 2:08 p.m.
    ... start, the team inserted AsLOV2 into conserved sites in all eight surface-exposed loops of an mCherry...SOS), a guanine nucleotide exchange factor that activates Ras. They expressed this OptoNB-SOS fusion protein...membrane-localized mCherry. With darkness, SOS binds Ras and initiates the extracellular signaling-regulated kinase (...
  9. Q&A with Karen Katz and Carl Paratore, the Newest Members of the Addgene Board of Directors

    Type
    Blog Post
    Published
    Feb. 19, 2019, 1:36 p.m.
    ...information, making it available to everyone, that creates more breakthrough and innovation. With any kind...Suffolk University Law School. Suffolk University graduates on average 20 PhD’s a year and we have a very ...Committee at the Greater Boston Food Bank and participates locally in Read To A Child's "Lunchtime Reading...
  10. 3 Challenges in Plant Synthetic Biology

    Type
    Blog Post
    Published
    July 22, 2014, 5:46 p.m.
    ...infancy. A long timeline from transformation to testing and a lack of well-characterized genetic tools ...excited to see how this exchange of genetic tools facilitates plant science. Challenge #3: Intellectual property...in 2004, she accepted a commission in the United States Air Force. She left active duty to pursue a degree...
  11. Click Biology: How to Click and Play to Explore Biology

    Type
    Blog Post
    Published
    Oct. 21, 2025, 1:15 p.m.
    ...the idea of general interfaces and the freedom to test out lots of combinations, to end up finding something... which are useful for connecting proteins in the test tube or in cells. There are also SNAP-tag and HaloTag...template VirD2 HUH-tag For creating DNA-protein conjugates rHUH HUH-tag (RNA) Covalent protein tag for...
  12. Choosing the B(right)est Fluorescent Protein: Photostability

    Type
    Blog Post
    Published
    June 8, 2017, 2:30 p.m.
    ... oxygen concentration may affect photobleaching rates (Shaner et al, 2008). This brings us to the key ...application (Goedhart et al, 2012). The third issue relates to the environment of the fluorescent protein. ...The issues with quantification of photobleaching rates can be summarized as follows: Instead of determining...
  13. CRISPRainbow and Genome Visualization

    Type
    Blog Post
    Published
    Feb. 28, 2017, 3:30 p.m.
    ... cross-talk with the other orthologs. Ma et al. tested their dCas9 variants using gRNAs specific for telomeric...individual colors to 6. A gRNA with all three hairpins generates white light. All 6 gRNAs can be expressed in a...separate vector. Figure 2: CRISPRainbow generates 6 unique colors and a white composite. gRNAs with...
  14. Uncertainty about Labor Law Brings More Uncertainty to Postdoc Wages

    Type
    Blog Post
    Published
    Jan. 11, 2017, 3:30 p.m.
    ...a new legal minimum of $47,476 per year, under updates to the Fair Labor Standards Act (FLSA). This was...22nd a preliminary injunction against the FLSA updates was granted nationwide. Again, we at Future of ...getting paid, which we will be analyzing for future updates. But suffice it to say, salaries are showing surprisingly...
  15. Summer SciComm: Preprints

    Type
    Blog Post
    Published
    Aug. 16, 2022, 1:15 p.m.
    ...Photo courtesy of Henry Mühlpfordt, under a CC BY-SA license. Many scientists and advocates have argued...manuscript is drafted. Preprints were one of the key routes for researchers to share information about the ...
  16. Antibodies 101: Affinity Reagents

    Type
    Blog Post
    Published
    April 14, 2022, 1:15 p.m.
    ...large number of targets, and can require specific conjugates. And, of course, once you have them, you’ll need... along with a higher likelihood of aggregation (Bates, 2019). They are small enough to be produced in ...delivery systems. Elsevier Science & Technology Books. Bates A, Power CA. David vs. Goliath: The Structure, Function...
  17. Antibodies 101: Selecting the Right Antibody

    Type
    Blog Post
    Published
    March 15, 2022, 1:15 p.m.
    ...options. With limited time and budget you cannot test them all, so how do you know which ones to try?  ...immune complexes are smaller than a primary:secondaries:conjugates complex. If you are trying to visualize....  The 5 pillars include genetic strategies that test expression in knock-out or knock-down down tissues...
  18. What's New in CRISPR - November 2021

    Type
    Blog Post
    Published
    Nov. 18, 2021, 2:15 p.m.
    ...with the desired resolution of prime editing intermediates. Building upon the PE2 and PE3 systems of their...introduce epitope tags and RNA transcription start sites. The lab further demonstrated that PRIME-del can...RT), which induces two double-strand breaks and deletes the intervening sequence. As with other prime editing...
  19. Seven Tips for Using LinkedIn as a Scientist

    Type
    Blog Post
    Published
    Oct. 1, 2019, 1:21 p.m.
    ...keep track of how you met the connection, as these notes are saved in the messaging stream. Unfortunately...LinkedIn is not the platform for politics, family updates, or click bait of any kind. For more on inappropriate...However, do comment on other people’s news and updates. Share your own good ideas, events and favorite...
  20. Troubleshooting Your Plasmid Cloning Experiment

    Type
    Blog Post
    Published
    Sept. 24, 2019, 12:55 p.m.
    ...antibiotic in your plate might not work. Check the plates! Streak on them an E. coli  strain known to be ...growing fine, it is probably time to prepare new plates with a fresh stock of antibiotic. Many small colonies... different temperature (30°C) for the growth on plates and in liquid culture. If you don’t get any positive...
Showing: 441 - 460 of 822 results