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Showing: 281 - 300 of 778 results
  1. The Fluorescent Vegetables in Aptamer Soup

    Type
    Blog Post
    Published
    Jan. 29, 2019, 2:27 p.m.
    ...locations using Cas9 and track the localization of the complex. Broccoli, the other green fluorescent aptamer,... RNA. Fluorescence is observed when these RNAs complex and the entire aptamer can hybridize and fold. ...uniqueness of the photostability of the Corn-DFHO complex. For dessert (last but not least), the only fruit-named...Other groups have used Mango to study RNA-protein complexes (Panchapakesan et al., 2017) and short non-coding...mango aptamer-fluorophore: a bright, high-affinity complex for RNA labeling and tracking." ACS chemical biology...transcription using a photostable RNA–fluorophore complex." Nature chemical biology 13.11 (2017): 1187. PubMed...
  2. Filming Science Videos in the Age of Social Distancing

    Type
    Blog Post
    Published
    May 20, 2021, 1:15 p.m.
    ...tough. Is the content accurate? Are we conveying complex ideas in the easiest way possible? Are the shots...Magic Pocket Cinema Camera 4K. It’s wonderful and simple to use, but when you need to juggle filming and...perfect height (Fig. 2). We recorded video using a simple, external video recorder and a mic clipped to her...video conferencing software. Interviewees could simply boot up Zoom and record themselves talking to their... and availability, a traditional solution was completely out of reach for Addgene.  So, onto research!...  Figure 4: The remote directing setup, complete with wireless video receiver, camera control, ...
  3. Targeting HIV-1 with CRISPR: Shock and Kill or Cut it Out?

    Type
    Blog Post
    Published
    May 10, 2016, 2:30 p.m.
    ...CRISPR may be the way to accomplish this tough job! Kamel Khalili’s lab at Temple University has demonstrated...the T-cell line 2D10. PCR amplification and Sanger sequencing of pooled samples showed that most of the ...undetectable in the blood. But the virus doesn’t completely disappear; it just hides in latently infected...the immune response. The second strategy is the simple removal of the HIV-1 genome from infected cells...
  4. Thoughts on the Future of Research 2015 Boston Symposium

    Type
    Blog Post
    Published
    Nov. 25, 2015, 4 p.m.
    ...postdocs. Unfortunately, even when universities have simple postdoc numbers sorted out there can be gaps in...Postdoc: An Institutional Perspective. This lack of complete information does not, however, prevent us from...scientifically minded, and able to communicate complex information - all traits you are likely to find...important take-away from this session was the idea that simply satisfying a percent requirement for diversity ...difficult question but not one that should be abandoned simply because it is difficult and is key to the continued...research. Panelist Moon Duchin provided a concrete example of how underrepresented individuals are discluded...
  5. What's New in CRISPR - May 2019

    Type
    Blog Post
    Published
    May 28, 2019, 12:49 p.m.
    ...oligodeoxynucleotide HDR template covalently attached to the Cas9-gRNA RNP complex via the fused HUH endonuclease...genome-wide CRISPR inhibition Covalent tethering of DNA template to Cas9 SECURE base editors Nme2Cas9 CRISPR interference...inhibition library Covalent tethering of DNA repair template to Cas9 Homology-directed repair (HDR) can be ...Neisseria meningitidis, Nme2Cas9, that recognizes a simple dinucleotide PAM (N4CC), lending to high target...
  6. 6 Tips for Analyzing and Troubleshooting Sanger Sequencing Results

    Type
    Blog Post
    Published
    June 26, 2014, 2:23 p.m.
    ...results Above (top right corner of this post) is an example of a seemingly clean DNA sequence (no Ns in sight...less and you might suspect contamination in your sample or consider asking your sequencing facility to ...to apply a special protocol for a difficult template. Anything more and you’re venturing into the uncertain...Use a silica spin column for purification of the samples you send for DNA sequencing If your sequencing ...requires you to perform your own Big Dye PCR amplification reaction (as opposed to using the all inclusive...
  7. Finding Your Perfect Job After University

    Type
    Blog Post
    Published
    Jan. 12, 2016, 3:30 p.m.
    ...This was particularly interesting as I had just completed my thesis on the study of e2Fb, which is a tumour...each advertised job received many applications, employers were requesting that only scientists with an MSc...cancer and I loved the practical aspects of testing samples in the lab, but I really struggled with the large...strong point. Working in industry: virology On completing my MSc, I again had to look at what type of work... solution attempted was more meetings, but this simply seemed to create more bureaucracy. As with any ...to a Work-Travel VISA, which means I can gain employment for up to 6 months in Australia or another country...
  8. Stepping into a Virtual Internship: My Experience at Addgene

    Type
    Blog Post
    Published
    Aug. 13, 2020, 1:21 p.m.
    ... to an internship on the journey to full-time employment. I have always been interested in the ways that...the forefront, no longer allowing myself to just simply exist without creating a storm. Given all the options...Canva, and I was able to create cute and on-brand templates for these posts. Some of recent Meet an ...what it was like to work at Addgene. This is exemplified in my work interviewing fellow Addgenies. I spoke...company that cares - not only in terms of its employees but in general about anyone who steps foot through...
  9. Management for Scientists: Seeking Feedback

    Type
    Blog Post
    Published
    Jan. 8, 2015, 2:34 p.m.
    ...from at least some employees. Watch out for "information allies" – these are employees in your group that...feel that giving feedback will be perceived as complaining. They may worry that it seems like "tattling"...have understood the speaker accurately. Thank employees who volunteer constructive feedback and suggestions...influenced by feedback. If you don't do this, employees will stop providing feedback pretty quickly. ...
  10. A Practical Guide to Optimizing AAV DIO and FLEx Vector Expression

    Type
    Blog Post
    Published
    Nov. 2, 2021, 1:15 p.m.
    ...recombination that are typically employed during viral plasmid amplification (Fischer, KB. 2019). This means...expression profile at multiple steps from plasmid amplification in bacteria to transgene expression in vivo....of spontaneous reversion during AAV plasmid amplification. On the left homologous pairs of scrambled cre-recombinase... set of injections into your animal model. For example, in a recent study by the Wickersham lab (Lavin...essential that every new vector, whether it be a completely new transgene or merely a new lot, be thoroughly...
  11. Antibodies 101: Fc Effector Functions

    Type
    Blog Post
    Published
    May 18, 2023, 1:15 p.m.
    ...response to a viral infection a) antibody-dependent complement deposition (ADCD) b) antibody-dependent cellular... Erp, et al., 2019.    Antibody-dependent complement deposition (ADCD) Antibodies can bind to a pathogen... known as opsonization. In antibody-dependent complement deposition (ADCD), opsonization of IgG and IgM...pathogen activates the immune system's classical complement pathway, starting a cascade of events that results.... PMID: 10742152. Dunkelberger, J., Song, WC. Complement and its role in innate and adaptive immune responses...
  12. CRISPR 101: Drug discovery and CRISPR

    Type
    Blog Post
    Published
    May 4, 2023, 1 p.m.
    ... models. In complex diseases, it can aid in generation of multiple edits or implementation of expression...change in pathology. If the disease pathology is complex, a model may be most effective. Once drug candidates... all diseases are fully characterized or have a simple pathology. In these cases, preliminary identification...made this control step extremely accessible. For example, let’s say you identified gene target X for BRCA-deficient...
  13. Plasmids 101: Positive and Negative Selection for Plasmid Cloning

    Type
    Blog Post
    Published
    Aug. 22, 2019, 12:43 p.m.
    ...medium containing the corresponding antibiotic. For example, if the DNA you’re inserting into the plasmid backbone...an essential amino acid), and a plasmid that complements the auxotrophy (i.e., synthesizes the critical... resistance spontaneously arises in yeast. For example, Markus Ralser’s lab created a yeast prototrophy...prototrophy kit containing 23 plasmids to complement auxotrophy. Negative selection: Cells that have lost a specific... gene. SacB can be used similarly to CcdB. For example, in the gene expression plasmid pGTvL1-SGC from...
  14. Chemogenetics vs. Optogenetics: Which Method Should I Choose?

    Type
    Blog Post
    Published
    June 11, 2020, 1:34 p.m.
    ...resolution as receptors can be turned on and off simply with the presence or absence of the correct wavelength...increasingly faster kinetics. The opsin ChETA, for example, is a ChR2 opsin mutated to have faster off kinetics...studies, however, require a permanent intracranial implant to be surgically installed to allow for light delivery...flexible as it relies on designer ligands that can be simply introduced by injection. The main challenge in ...Invasiveness Mice require permanent intracranial implant Noninvasive Controlling Stimulation ExogenousEasily...
  15. What's the Best Way to Elute and Store Your Plasmid DNA?

    Type
    Blog Post
    Published
    June 4, 2020, 1:22 p.m.
    ... last step will influence the stability of your sample over time and determine which experiments you can...most common E. coli strains used for plasmid amplification are endA negative, meaning the gene has been... impact the time you will be able to store your sample without having substantial degradation and which... DNA, it will limit what you can do with these samples. This is because divalent cations are essential...reaction, an effective possibility is to dilute your sample in water to reduce the EDTA concentration. Alternatively...
  16. SunTag and Fluorescent Imaging

    Type
    Blog Post
    Published
    March 28, 2017, 2:30 p.m.
    ...this biological lesson and created a system to amplify fluorescent signals. Named for the "stellar explosion... However, this system is far from perfect. For example, If your fusion protein is expressed at low levels...expressed from a separate plasmid. This system amplifies the intensity of the fluorescent signal and enables...chance of phototoxicity Reduced photobleaching Simplified, long-term single-molecule tracking Caveats ...et al. “A protein-tagging system for signal amplification in gene expression and fluorescence imaging....
  17. CRISPR 101: Cas9 Nickase Design and Homology Directed Repair

    Type
    Blog Post
    Published
    March 15, 2018, 12:59 p.m.
    ...this can be accomplished with either a PAM-in or PAM-out orientation. Just as the names imply, PAM-out designs...Overview of Cas9 nickase We’ll use SpCas9 nickases as examples for this post. The D10A mutation inactivates the...site rather than the optimal <10 nt distance. Employing two gRNA sites that are further away from the ...mutation site. Quick tips for nickase design Ready to employ nickases for your next CRISPR experiments? Here...
  18. CRISPR/Cas9 FAQs Answered!

    Type
    Blog Post
    Published
    March 13, 2014, 4:08 p.m.
    ...for example) on each colony in order to screen for positive ones.  -- OR -- If your HR template has ...4 of the Cong, et. al, 2013 Science paper. For example, if you want to use double nickase, you could express...selection marker to select transfected cells (for example, plasmid with a puromycin resistance cassette, ...system with your homologous recombination (HR) template, you could then: Confirm your HR by doing Restriction...
  19. RUBY-Red Siliques

    Type
    Blog Post
    Published
    March 1, 2022, 2:15 p.m.
    ...method kills the transgene free individual. For example, with CRISPR-Cas9 gene editing, transformation ...GUS staining or are not suited to studying large samples. RUBY Red But recently, something new has been ... events and am currently planning to use it to simplify my work with an Arabidopsis mutant that can’t ...unfamiliar with these mutant plants. Using RUBY to simplify the identification of these mutants will speed...Other innovative uses of RUBY are possible, for example as positive selection of transformed plants to ...
  20. Summer SciComm: Science Storytelling

    Type
    Blog Post
    Published
    Sept. 16, 2022, 1:15 p.m.
    ...until you don't, of trying to understand your completely unexpected findings, or understanding why your...thrice-failed experiment, this paper was actually from a completely unexpected finding in a different experiment,...your conflict, you’ll need two other things to complete your story: an introduction, and a resolution.... big-picture problem, by asking your audience a simple question, like “Have you ever thought about how...conflict to get your audience invested in the more complex story, and then build on that in your resolution...
Showing: 281 - 300 of 778 results