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Showing: 181 - 200 of 274 results
  1. CRISPR 101: Targeting RNA with Cas13a (C2c2)

    Type
    Blog Post
    Published
    Sept. 21, 2017, 2:07 p.m.
    ...overhangs Cas13a (C2c2) 2x HEPN crRNA RNA 3' A, U, or C (not required by all orthologs) Specific RNA cleavage...spacer sequence and consists of a single A, U, or C base pair. In bacteria, once Cas13a has recognized...Class 2, candidate 1, 2, or 3). C2c1 and C2c3 are related to Cpf1, but they require both a tracrRNA and crRNA...
  2. Adenoviral Vector Production and Troubleshooting

    Type
    Blog Post
    Published
    June 14, 2018, 11:44 a.m.
    ...8.2 kb, and in vivo transgene expression ceases relatively quickly due to immune response against AdV. Importantly...4. Mittereder, Nanette, Keith L. March, and Bruce C. Trapnell. "Evaluation of the concentration and bioactivity...
  3. Polymerase Chain Reaction Overview and Applications

    Type
    Blog Post
    Published
    Aug. 10, 2021, 1:15 p.m.
    ...agarose gel to confirm product presence, size, and relative quantity. End point PCR is most commonly used ...     References and Resources References Shen C-H (2019) Amplification of Nucleic Acids. In: Diagnostic...reagents and several heating and cooling steps. PCR relies on heat resistant DNA polymerase from the thermophilic...
  4. Interview: Nicola Patron on Plant Synthetic Biology, MoClo, and More

    Type
    Blog Post
    Published
    June 12, 2014, 3:30 p.m.
    ...Nicotiana benthamiana. N. benthamiana is a tobacco relative and a good model for plant disease because it ...assembly of multigene constructs. Weber E, Engler C, Gruetzner R, Werner S, Marillonnet S. PLoS One. 2011...tools work in any plant? Patron: The MoClo kit is entirely for dicots, not grasses and wheat, but we do work... have your parts. That was the motivation for releasing a large parts kit. Once you have so many parts...
  5. Hot Plasmids Spring 2024

    Type
    Blog Post
    Published
    May 23, 2024, 1:15 p.m.
    ...specificity of GFP expression for the indicated ssAAV5s. C) Quantifications showing high microglia transduction... microglia-targeting AAV plasmids here! Serrano, C., et al. (2023). Simple and Highly Specific Targeting...fast-spiking neurons. The same A-to-D mutation in the related voltage indicator Ace2N-mNeon also led to similar...dCas9-VPR, prime editing, and delivery of disease-relevant large proteins. They demonstrated REVeRT in various...
  6. Proximity Labeling: A Powerful Tool for Protein Complex Purification and Proteomic Mapping

    Type
    Blog Post
    Published
    Dec. 2, 2019, 2 p.m.
    ...these methods a try.  References:  Branon, Tess C., et al. "Efficient proximity labeling in living cells...1837. PubMed PMID: 30676735. Kim, D. I., Jensen, S. C., Noble, K. A., KC, B., Roux, K. H., Motamedchaboki...array of biological contexts.  Proximity labelling relies on the labelling of neighboring proteins within...interactions in vivo (Ge et al., 2019). This technique relies on an S. auerus transpeptidase sortase A variant...
  7. Let There Be LITE Plasmids

    Type
    Blog Post
    Published
    Nov. 21, 2013, 3:56 p.m.
    ...groups making use of the new optogenetic tools in C. elegans and in Plasmodium. For those who do want ...those optogenetic controls, gene expression levels reliably increased in vitro by a factor of 10 to 20. A ...modifications in the genome,” Zhang said in MIT’s press release. In an accompanying Nature News & Views Andreas...
  8. A Needle in a Base-Stack: Cas9 Structural Biology

    Type
    Blog Post
    Published
    June 4, 2024, 1:15 p.m.
    ...similar nuclease folds found in other proteins. The C-terminal domain (CTD) of the protein also belongs ...https://doi.org/10.1038/s41586-022-04470-1 Cofsky, J. C., Soczek, K. M., Knott, G. J., Nogales, E., & Doudna...Sternberg, S. H., Redding, S., Jinek, M., Greene, E. C., & Doudna, J. A. (2014). DNA interrogation by the...the enzyme needs cellular recycling factors to release its handiwork (Sternberg et al., 2014). New discoveries...
  9. Antibodies 101: Single Chain Fragment Variables (scFvs)

    Type
    Blog Post
    Published
    June 3, 2021, 1:15 p.m.
    ...solubility (Monnier et al., 2013). The linker keeps the C-terminus of one variable domain and the N-terminus...10.3390/antib2020193  Khantasup K, Chantima W, Sangma C, Poomputsa K, Dharakul T (2015) Design and Generation...to avoid animal use by using semi-synthetic or entirely synthetic VL and VH sequences. Phage display also...scFvs are also used for eye diseases, such as age-related macular degeneration (AMD) since direction injection...of the CAR facilitates signal transduction and release of cytotoxic granules from the T cell. When a CAR... CAR has an scFv that binds cancer-related antigens, binding of the scFv part of the receptor can activate...
  10. How to Write a Scientific Review Article

    Type
    Blog Post
    Published
    Feb. 16, 2017, 3:30 p.m.
    ... all the proteins in the class that showed the relative sizes and the conserved domains. This information...perfect. Good luck! References 1. Haery, Leila, Ryan C. Thompson, and Thomas D. Gilmore. "Histone acetyltransferases... maybe you’re researching a topic for which no relevant or recent review exists. Once you pick a topic...format also has the benefit of exposing you to relevant researchers in the field. Finally, you can sound...from start to finish. Find the information that’s relevant to you, note it, and move on. At the beginning...
  11. Lentiviral Vector Uses and Overview

    Type
    Blog Post
    Published
    May 19, 2016, 2:30 p.m.
    ... deliver a large amount of DNA (~8 kb) with a relatively low immune response, it should come as no surprise..., Andre K, Stein D, Blick G, Greenberg RN, Kinder C, Zolopa A, Binder-Scholl G, Tebas P, June CH, Humeau... co-transfection of these plasmids, 293T cells released transgene-containing lentiviral particles into...
  12. Plasmids 101: Gibson Assembly and Other Long-Homology Based Cloning Methods

    Type
    Blog Post
    Published
    March 1, 2016, 3:30 p.m.
    ...reaction takes an hour or less to complete at 50 °C. After an hour or so, the sample is immediately ready...PMID: 25861928. 3. Jiang W, Zhao X, Gabrieli T, Lou C, Ebenstein Y, Zhu TF. Cas9-Assisted Targeting of CHromosome... traditional restriction enzyme cloning we once relied exclusively on. In this blog post, I will go over...isn’t ideal for synthetic biology standards, which rely up on the re-use of parts between experiments. In...
  13. Deep Dive: Statistical Tests (Comparisons)

    Type
    Blog Post
    Published
    March 7, 2023, 2:15 p.m.
    ... controls how many false positives are allowed relative to true positives. Both metrics can be used to...and plot your data in ascending numerical value relative to quantiles derived from a theoretical distribution...measure this effect, known as covariance. This is the “C” that differentiates these tests from ANOVA/MANOVAs.... Below are several core factors of statistics relevant for many downstream statistical tests.   Independent...significance exists somewhere amongst multiple groups is rarely enough information. A post hoc test, done after...yourself from family-wise error and just perform the relevant comparisons using Dunnett’s test, a test that ...
  14. Antibodies 101: The Basics of Western Blotting

    Type
    Blog Post
    Published
    March 8, 2021, 2:41 p.m.
    ...post-translational modifications, quantify protein levels relative to standards, detect the cellular location of ...thickness of the band provides information about the relative abundance of the protein in the sample. More protein...4354 . https://doi.org/10.1073/pnas.76.9.4350 Yang P-C, Mahmood T (2012) Western blot: Technique, theory,...endogenously expressed protein at physiologically relevant levels. Some vendors will also test their antibody...known to express the protein at physiologically relevant levels (not overexpression systems) while negative...molecular biology protocols Browse other articles related to antibodies Resources on Addgene.org Find written...
  15. Fluorescent Proteins 101: History of Fluorescent Proteins

    Type
    Blog Post
    Published
    Aug. 7, 2017, 1:58 p.m.
    ...expressed GFP in exogenous organisms (E. coli, and later C. elegans) for the first time. After Chalfie’s work... in molecular detail. On the underside of the “umbrella” of A. victoria there is a ring that glows with...
  16. Six Spooky Science Stories and Halloween at Addgene

    Type
    Blog Post
    Published
    Oct. 31, 2019, 1:06 p.m.
    ...PubMed Central PMCID: PMC1559948. Brusca, Richard C., and Matthew R. Gilligan. "Tongue replacement in ...membrane. Vampirovibrio chlorellavorus will not grown in culture alone and relies on its algae host for ...ant’s body. The fruiting bodies then rupture and release spores onto the forest below for the next unsuspecting...stumble upon. Vampire bacteria Vampirovibrio chlorellavorus is a predatory bacteria that attaches to the...adult worms develop in the digestive tract and release eggs in the bird feces, which get eaten by another... the predatory cyanobacterium Vampirovibrio chlorellavorus." PeerJ 3 (2015): e968. PubMed PMID: 26038723...
  17. Evolution of Brainbow: Using Cre-lox for Multicolor Labeling of Neurons

    Type
    Blog Post
    Published
    April 24, 2015, 2:39 p.m.
    ...Sato T, van Es JH, van den Born M, Kroon-Veenboer C, Barker N, Klein AM, van Rheenen J, Simons BD, Clevers...melanogaster. Hadjieconomou D, Rotkopf S, Alexandre C, Bell DM, Dickson BJ, Salecker I. Nature Methods. ...observed in a given area. In 2013, Dawen Cai, et al. released a refinement of the Brainbow technology, Brainbow...
  18. Management for Scientists: Seeking Feedback

    Type
    Blog Post
    Published
    Jan. 8, 2015, 2:34 p.m.
    ...ask at least one question to clarify the situation; C = confirm that you have understood the speaker accurately...brings feedback back to the manager. Team members rarely rush to give honest feedback to the manager for...
Showing: 181 - 200 of 274 results