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Showing: 581 - 600 of 957 results
  1. Transgenic Organisms, Cas9 Gene Drives, and Appropriate Safeguards

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    Blog Post
    ...endonuclease gene within its own cut site1. In heterozygotes, the endonuclease cuts the wild-type chromosome...Both methods are easy to implement and have been tested in yeast5. Ecological confinement involves performing...area where escaped organisms won't be able to find mates2. For example, ongoing experiments attempting to...
  2. Getting to Know Expansion Microscopy

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    Blog Post
    ...to ~4-10x linearly! This expansion physically separates molecules while maintaining their relative positions...understanding of neuronal synapses, centrosomes, parasites, and more (Bertiaux, et al. 2021; Gambarotto, ...new insights into the cytoskeleton of malaria parasites including the conservation of a conoid. PLoS Biology...
  3. Antibodies 101: Producing Recombinant Antibodies

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    Blog Post
    ...Komagataella phaffii (a.k.a  Pichia pastoris) because it secretes fewer of its own proteins, making the purification... the efficacy of our antibodies through stress testing. An aliquot of our recombinant antibodies is stored...aliquots frozen immediately post-harvest. Stress-tested antibodies that are not equally effective are shipped...
  4. Uncovering Ancestral Bias in CRISPR Research

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    Blog Post
    ...dependencies detected. Given this new information, Misek notes that in theory, if the DepMap analysis had an equal...and references References Germline variation contributes to false negatives in CRISPR-based experiments...Appelbaum, Bege Dauda, Anna Di Rienzo, Agustin Fuentes, Stephanie M. Fullerton et al. Getting genetic ...
  5. Droplet Digital PCR for AAV Quantitation

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    Blog Post
    ...detection of the product. As an added benefit, replicates are built into the technology. One well (containing...Have a dedicated bench with a dedicated set of pipettes for ddPCR set-up. Prepare the master mix in a ...low as 1C/s. Increasing the elongation time to 2 minutes and the denaturation time to 1 minute has been ...
  6. Better Dyeing Through Chemistry & Small Molecule Fluorophores

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    Blog Post
    ...to spend their days microinjecting fluorescent conjugates into cells. Fortunately, over the last 20 years... cognate protein. In some cases this property eliminates the need for removing excess dye from the sample...refinements to these systems—smaller tags, brighter conjugates, higher fluorogenicity, photoactivation etc.—...
  7. Tips from the Repository Trenches: Using Barcodes to Track Samples

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    Blog Post
    ... is received in the lab, although this number fluctuates throughout the year (see graph below). Addgene.... Each plate has numbers and letters to give coordinates, from A1 through H12. Each plate is also barcoded...rack that contains five levels that can hold five plates on each level. This rack is located in one of five...
  8. The PAM Requirement and Expanding CRISPR Beyond SpCas9

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    Blog Post
    ...HDR-mediated gene editing is most efficient when target sites are located in close proximity to the region to ...editing than wild-type SpCas9, even when targeting sites that are known to produce off-target editing with...engineering was Cas12a (formerly Cpf1), a nuclease that generates double strand breaks in target genes resulting...
  9. Four Base Editing Reporters to Monitor and Enrich Editing in Real-time

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    Blog Post
    ...base-pair mCherry insertion. Editing of these motifs generates lesions that are subject to excision and ssDNA...-Beier et al., 2019. The team put TREE to the test by infecting HEK-293 cells with the BFP variant,...al., 2020. As a proof of concept the Dow lab tested their hypothesis with GFP fluorescence. To do this...
  10. Lab to Office Culture Shock

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    Blog Post
    ...their best interest to do so, sure, but it also eliminates that feeling of floundering one can have when...case at an office job. I’ve frequently told job candidates over the years that one of the things I enjoy...career options are expanding. As someone who coordinates cross-team projects at Addgene, I find that my...
  11. Supporting Reproducibility with a Connected ELN

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    Blog Post
    ...describe how each of these kinds of connectivity facilitates reproducibility. Connectivity to other data sources...available for public access, review, and query. Gates Open Research and Wellcome Open Research both accept...Framework, Data Dryad, and Figshare. Any ELN that facilitates reproducibility has to make it easy to export...
  12. Changing Labor Laws Bring Increased Postdoc Wages

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    Blog Post
    ...increase from $23,660 to $47,476 per year, under updates to the Fair Labor Standards Act (FLSA). This is... must be above this level, and certain job duty tests must be met. In the Department of Labor’s general...postdocs should be paid according to the National Institutes of Health National Research Service Award (NRSA...
  13. CRISPR 101: Which Cas9 Do I Choose for My CRISPR Experiment?

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    Blog Post
    ...demonstrated that targeting dCas9 to transcriptional start sites was sufficient to repress transcription by blocking...of activators include the SunTag system which facilitates recruitment of multiple activation domains to...2020). Moreno-Mateos, M. A. et al. CRISPR-Cpf1 mediates efficient homology-directed repair and temperature-controlled...
  14. Rett Syndrome: A History of Research and Therapeutic Outlooks

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    Blog Post
    ...role of the MECP2 gene, and highlights some of the latest breakthrough therapeutic approaches. What is Rett... the work of the consortium, two gene therapy candidates advanced into clinical development programs in... syndrome gene therapy improves survival and ameliorates behavioral phenotypes in MeCP2 null (S51.002)...
  15. Bacterial Toxin-antitoxin Systems as Molecular Biology Tools

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    Blog Post
    ...grows resulting in the appearance of unmethylated sites in the chromosome. The more stable endonuclease ...an immune response. As a proof of concept, they tested a lux-mediated bioluminescence reporter in vivo...hok/sok system of plasmid R1: Sok antisense RNA regulates hok gene expression indirectly through the overlapping...
  16. Five Popular Model Organisms, Part 2

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    Blog Post
    ...propagated and have a generation time of around 20 minutes, they are perfect for molecular cloning and metabolic...is far from perfect. One of the most limiting attributes of rats is their difficult to manipulate genome...making them useful for in vivo studies. These attributes make frog eggs some of the most useful tools ...
  17. New Optogenetic Tools for Cytoskeleton and Membrane Control

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    Blog Post
    ...GFP-PASS (green). After 30 minutes of blue light illumination, substantial PA accumulates in the plasma membranes...optogenetics plasmids – and keep an eye out for future updates to the collection! Resources and references Additional...
  18. Antibodies 101: Beyond Surface Labeling

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    Blog Post
    ...advantage of this system is that streptavidin conjugates are commercially available for a wide range of... heterogeneous cell mixes, like bulk lympho-/splenocytes, you might only be interested in one of the various...mummification). Permeabilization, as the name suggests, perforates the cell membrane to allow for antibodies to ...
  19. Transferable Skills Guide: Time Management

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    Blog Post
    ...saying something like, “I’ll be there in a few minutes, I just need to split some cells.” Inevitably, ... Word or google doc that I can comment and make notes on as I progress. I’ve also recently started using...Business Review article on procrastination recommends testing out how much time you can possibly handle doing...
Showing: 581 - 600 of 957 results