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  1. Google Forums Round Up: First Impressions of NgAgo

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    Blog Post
    ...is very tricky to use and fussy to optimize. One reason could be the instability of the supposedly alien...many may find this inconvenient. Another possible reason for the trickiness of NgAgo is the inability of... not snipping DNA, he tries random things (101 lessons on Spanish, C++, guitar, photography) and often...
  2. Experimenting with New Careers while in Grad School

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    Blog Post
    ...next thing. If I made a mistake, I evaluated what lessons I had learned – call it “troubleshooting.” Trying...I asked some colleagues to share valuable life lessons they have learned during their scientific training... them in a blog post on Born to Science: Life Lessons from Scientific Training More and more voices ...
  3. Light Sheet Fluorescence Microscopy

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    ...Praparaten. Leipzig: S. Hierzel.
 J.A Dent, A.G. Polson, M.W. Klymkowsky. (1989) Development, 105.61-74... Ross A, J. Hecksher-Sorensen, R. Baldock,  D. Davidson. (2002) Science, 296, 541-545. Pubmed. A. Ertürk.... Kim, S. Kalyanasundaram, A.S. Andalman, T.J. Davidson et al. (2013) Nature, 497, 332-337. Pubmed. R....
  4. The Effect of COVID-19 on Liu Lab Plasmid Requests From Addgene Data

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    ...the statistical independence assumption of the Poisson process. This modification also eases the interpretation...orders.  Our model factors the likelihood in our Poisson process into two components: 𝜃x(t) and 𝜓z(t)....contains an intractable integral of the product of a Poisson and multivariate log-normal likelihoods. Effects...
  5. Droplet Digital PCR for AAV Quantitation

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    ...qPCR runs before a new one is needed. For these reasons, we are in the process of transitioning our titering...for the detection of low copy numbers. For this reason, it can be used in the detection of rare sequences...PMID: 24328707. PubMed Central PMCID: PMC3991984. Song, Neng, et al. "Detection of circulating Mycobacterium...
  6. An Introduction to Adenovirus

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    ...genes that apparently contribute to virulence (Tollefson et al., 1996) – cell death has been reported when...6301263. Servellita, V., Sotomayor Gonzalez, A., Lamson, D. M., Foresythe, A., Huh, H. J., Bazinet, A. ...10.1182/BLOOD-2007-02-062117. PMID: 17510320. Tollefson, A. E., Scaria, A., Hermiston, T. W., Ryerse, ...
  7. Tips for arabidopsis transformation

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    ...Arabidopsis is a fantastic model organism for many reasons, not the least of which is ease of transformation...a protocol for antibiotic selection, check out Harrison et al., 2006. Tips: Don’t plate seeds too densely... 24032037. PubMed Central PMCID: PMC3759027. 2 Harrison, S. J. et al. (2006) ‘A rapid and robust method...
  8. AAVs CREATed for Gene Delivery to the CNS and PNS

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    ...gross comparison of AAV.PHP.eB and AAV.PHP.S to their parental vectors. To quantify this comparison, capsids...PubMed PMID: 28671695. 2. Deverman BE, Pravdo PL, Simpson BP, et al. Cre-dependent selection yields AAV variants...
  9. The PAM Requirement and Expanding CRISPR Beyond SpCas9

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    ...Fuller CK, Cameron P, Fazzio TG, Zhu LJ, Wolfe SA, Sontheimer EJ (2018) NmeCas9 is an intrinsically high-fidelity.... Kim E, Koo T, Park SW, Kim D, Kim K, Cho H-Y, Song DW, Lee KJ, Jung MH, Kim S, Kim JH, Kim JH, Kim ...Topkar VV, Nguyen NT, Zheng Z, Gonzales APW, Li Z, Peterson RT, Yeh J-RJ, Aryee MJ, Joung JK (2015) Engineered...
  10. Binning Singletons: Tackling Conference Networking When You Don’t Know Anyone

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    ...meeting who felt isolated at a conference for any reason was a Singleton. Figure 1: The Binning Singletons...Gorski, Mark O. Martin, Maureen Berg, Michael D. L. Johnson, Tiffany Lowe-Power, Eric Griffis, Janet Iwasa,...Dunivin, Jen Greenwich, Susanna Harris, Heather Hendrickson, Jonathan Jacobs, Mo Kaze, Christina Kellogg,...
  11. Viral Vectors 101: Preparing Pooled Libraries

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    ...screening! This blog was written by Addgenie Hannah Dotson.  Resources and references References Genome-...protocols.  References McDade JR, Waxmonsky NC, Swanson LE, Fan M. Practical Considerations for Using Pooled...  Hannah Dotson...
  12. New CRISPR Tools: Cas7-11 and PASTE

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    ...mammalian cell lines. However, in those same comparisons, the AbuGoot lab reported no detectable effect...and can be easily programmed for new genes. In comparison with other large insert techniques like HITI ... Rachel Leeson...
  13. Advancing Biology with Zebrafish: Genetic Tools for Developmental Studies and More

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    ...vertebrate embryogenesis. To illustrate some of the reasons that zebrafish have been embraced as a model organism...examine the consequences of manipulating genes. One reason for the success of zebrafish as a model organism... 2016). One common and robust strategy uses a transposon called Tol2 to randomly integrate foreign DNA...
  14. Antibiotic Resistance: An Old Solution but a New Problem

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    ... can arise, and has arisen, for many different reasons. Exposure to antibacterial drugs provides a selection...households by observing proper cleanliness and personal hygiene standards. Handwashing is an essential...spread of antibiotic resistant bacteria from one person to the next. For more information and tips on preventing...
  15. Getting the Most from Your Lentiviral Transduction

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    Blog Post
    ...lack of documentation and high turn-over of lab personnel. If you are unsure of the background of the lines... such as serum, other cell lines, or infected personnel and can persist undetected; unlike infections ..., Kassem H.S., Pepper S.D., Hey Y., Ward T.H., Margison G.P. “Mycoplasma infection significantly alters...
  16. Antibodies 101: Introduction to Immunofluorescence

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    ... a fluorophore (Figure 1).   Figure 1: Comparison between how direct immunofluorescence and indirect... will focus on this technique here. One of the reasons that indirect IF is more common is that secondary...primary, resulting in signal amplification. Another reason is cost effectiveness. Generating and validating...
  17. Hot Plasmids: Summer 2024

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    ...samples during cryo-EM grid plunge freezing By Rachel Leeson Cryo-EM samples can be damaged at the air-water...  Anzalone, A. V., Gao, X. D., Podracky, C. J., Nelson, A. T., Koblan, L. W., Raguram, A., Levy, J. M....Adriaens, C., Ramadoss, G. N., Shi, Q., Hung, K. L., Samelson, A. J., … & Weissman, J. S. (2021). Genome-wide...
  18. Transferable Skills Guide: Time Management

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    Blog Post
    ...different projects, you might not be able to make any reasonable progress on any one of them. That’s why, as I...recently started using Trello to manage larger, multi-person projects. Day-to-day, flexible to-do lists. Because...Bored and Brilliant” for learning more fantastic reasons to remove yourself from distractions every once...
  19. Evolution of Lab Techniques

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    ...be quantified by the strength of the signal in comparison to a control sample. Southern blotting applications... sequencing of many samples at once for later comparison. These next-generation sequencing techniques ...Sanger, Frederick, Steven Nicklen, and Alan R. Coulson. "DNA sequencing with chain-terminating inhibitors...
  20. Finding Your Perfect Job After University

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    Blog Post
    ...being mentally challenged. For these and other reasons, I started  looking for other career options after...government loans to study a MSc, so I had to take out a personal bank loan. I saved money from my role in Industry...or another country of the Commonwealth. Another reason why I chose Australia was because it is an English...
  21. Building Global Connections with the International Mentorship Program USA-EUROPE

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    ...cross country boundaries for both professional and personal development, is essential to excelling in the ...adapt their mentoring styles to the mentee’s personality and professional needs at any time. In its Pilot...advisor. For their own part, mentors receive immense personal gratification as they witness their student’s ...
  22. RNA Interference in Plant Biology: New Tools for an Old Favorite

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    ...that contains sequence complementary to the dsRNA (Wilson and Doudna, 2013). RNAi consists of two non-exclusive..., Deans RM, Li A, Bassik MC (2016) Systematic comparison of CRISPR/Cas9 and RNAi screens for essential...:dev186452 . https://doi.org/10.1242/dev.186452 Wilson RC, Doudna JA (2013) Molecular Mechanisms of RNA...
  23. Mycoplasma Contamination: Where Does It Come From and How to Prevent It

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    ...difficult to trace. These include the laboratory personnel, the serum, the cell culture media, water baths...your cell cultures because you are not the first person to face this kind of problem. Educate others when...Sung H, Kang SH, Bae YJ, Hong JT, Chung YB, Lee CK, Song S (2006) PCR-based detection of mycoplasma species...
  24. Tips for a 1st Time CRISPR User (by a 1st Time CRISPR User)

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    ...better plan your transductions and use a range of reasonable MOIs. 2. Create a monoclonal Cas9-expression ... gRNA plasmids on our website. There are a few reasons to target different regions of the gene with multiple...testament to how far genome engineering has come. For comparison, in 2007 it took about 3 months to knockout a...
  25. Lambda Red: A Homologous Recombination-based Technique for Genetic Engineering

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    ...commonly used for recombineering can be found in Thomason et al and Sharan et al (a few strains can also...ecosalplus. PubMed PMID: 27223821. 4. Sharan SK, Thomason LC, Kuznetsov SG, Court DL. Recombineering: A ...19180090. PubMed Central PMCID: PMC2790811. 5. Thomason, L. C., Sawitzke, J. A., Li, X., Costantino, N...
  26. Important Considerations When Using AAVs

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    ... were suitable for our needs for the following reasons: Safety: Since AAVs are nonpathogenic, we are...Ready-to-Use Retrograde AAV Preps at Addgene 2) Comparison of genetically engineered receptors (i.e. chemogenetics...applications, we may also be able to use these comparisons to enhance our understanding of receptor physiology...
  27. Typing CRISPR Systems

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    ...P. C., Shmakov, S. A., Silva, C., Tolstoy, I., Johnson, D. B., Koonin, E. V., & Quatrini, R. (2021). Evolution...https://doi.org/10.1093/nar/gkz1197 Samai, P., Pyenson, N., Jiang, W., Goldberg, G. W., Hatoum-Aslan, ... Hallmark, T., Keiser, D., Bondy-Denomy, J., & Jackson, R. N. (2021). Positioning diverse Type IV structures...
  28. Special Delivery: Fluorophore Targeting for FRET Studies

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    ... is FRET and what's it good for? Fluorescence resonance energy transfer (FRET) is a biophysical interaction... excited, it can transfer energy directly via resonance to the second fluorophore (the acceptor) if the...PMID: 17512008. 4. Fessenden, James D. "Förster resonance energy transfer measurements of ryanodine receptor...
  29. A Needle in a Base-Stack: Cas9 Structural Biology

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    ...heteroduplex transitions back to DNA duplex, and it’s the reason guide sequences have a maximum length of 20 bases...Sternberg et al., 2015).     Figure 8: Comparison of Cas9:RNA crystal structure (left, PDB ID 4ZT0..., Dangerfield, T. L., Jung, K., McCool, R. S., Johnson, K. A., & Taylor, D. W. (2022). Structural basis...
  30. CRISPR 101 eBook...en español

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    ...repositorio. Este increíble regalo permitirá que más personas accedan a recursos útiles para sus experimentos... Rachel Leeson...
  31. New FLIS Plasmid (April Fools 2022)

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    ... research, for decades. Its short life cycle, reasonably close genetic homology to humans, and small size... Rachel Leeson...
  32. Congrats to the 2019 Deck The Lab Winners

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    ... of holiday spirit still linger (despite the unseasonably warm weather we had last weekend). We’ve spent...DeckTheLab. Getting in the spirit for the holiday season. Santa frog is coming to town. @Addgene @UMich_...
  33. 2021 Deck the Lab Winners!

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    ...today✂️❄️🦠thanks to the awesome templates by @CVRHutchinson @CVRinfo. Check them out: https://t.co/uDEE9PsspD...  Rachel Leeson...
  34. DIY DNA Ladders from Penn State University

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    Blog Post
    ...Addgene. A team of undergraduate students led by Dr. Song Tan at Penn State developed the plasmids, pPSU1 ...1000 Lanes Cost $200-$500  <$10 $20-30 Cost Comparison: While convenient, commercial ladders cost between...
  35. Summer Fun at Addgene!

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    ...Here at Addgene, we’re always inspired by the new seasons, so we've made some big summer plans this year!...                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Rachel Leeson...
  36. Congratulations, Deck The Lab winners!

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    ... to #DeckTheLab with virus snowflakes from @CVRHutchinson #SciArt #STEAM #WinterWonderlab @Addgene Make...We hope everyone has a safe and festive Holiday season. 🙌 🥂 🎄 🎉 😷 Remember wear a mask,↔️social distance...
  37. Editor's Choice, July 2016

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    ...easier to generate mouse models.   Cpf1 Update: Comparison to Cas9 and NgAgo As you might expect given the...Generating Mouse Models Using CRISPR/Cas9 Cpf1 Update: Comparison to Cas9 and NgAgo Special Delivery: Fluorophore...
  38. MassBioEd Career Exploration Day at Addgene

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    ...introduction to plasmids with Director of Biology Lianna Swanson was very popular, with the students excited to ...different career options in science, with Abigail Anderson commenting that “There is not just a scientist...
  39. Designer PUF Proteins for Any RNA Target

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    ... protein that binds an alternate sequence. By comparison, Abil explained, the specificity of other RNA...less reliable results. She also notes that for reasons that are not yet entirely clear some PUF proteins...
  40. Management for Scientists: Seeking Feedback

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    ...honest feedback to the manager for a variety of reasons. They may feel that giving feedback will be perceived... to be too busy to be receptive.   Whatever the reason, it is a fortunate and successful manager that ...
  41. Mapping the 4D nucleome with CRISPR/Cas9

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    ...advantageous. This new technique, developed in Thoru Pederson’s lab, brings us one step closer to mapping the...Naseri A, Reyes-Gutierrez P, Wolfe SA, Zhang S, Pederson T. Proc Natl Acad Sci U S A. 2015 Mar 10;112(10...
Showing: 301 - 350 of 721 results