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  1. Antibodies 101: Fc Effector Functions

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    Blog Post
    ...affinity and specificity. Trends in Immunology, 29(2), 91–97. https://doi.org/10.1016/j.it.2007.11.004 ...kill the target cell. If the pathogen is a large parasite, ADCC can be induced through a very similar interaction...
  2. 10 Ways to Share Your Science!

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    Blog Post
    ...but also something about how science really works. 2)   Read science writing in magazines or newspapers...people like a good story and science involves characters – in this case you – on a quest to ask and answer...
  3. CRISPR/Cas9 FAQs Answered!

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    Blog Post
    ...articles, such as: Sander JD & Joung JK, Nature Biotech, 2 March 2014. Or browse the articles related to the ...system, developed by the Zhang lab, which has comparable efficiency to the optimized chimeric design but...
  4. 27 Hot Plasmids from 2016

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    Blog Post
    ...backbone, which expresses the gRNA from a Drosophila U6:2 promoter and Cas9 from the actin 5C promoter. Addgene...backbones for lentivirus LV 1-5 and retrovirus RV 2-5 were constructed. The authors then used GMAP assembly...engineering (MAGE) (1). MAGE uses recombineering (2) to simultaneously incorporate multiple single-strand...number of tandemly expressed gRNAs respectively) and 2) the size of the deletion. Smaller deletions generally... Kroeze et al. developed a new approach termed Parallel Receptor-ome Expression and Screening via Transcriptional...library of approved drugs against the entire kit; a parallel analysis that successfully identified new, highly... generated using slightly relaxed gRNA design parameters. To demonstrate the effectiveness of their library...
  5. A Practical Approach to Choosing the B(right)est Fluorescent Protein

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    Blog Post
    ...closely mimicking the future application. In figure 2 we provide an example of the comparison of the practical...your selection on a small-scale head-to-head comparative study under conditions that best mimic the intended...practical brightness takes all application specific parameters into account, including the specs of your microscope...translated from the same open-reading frame and separated from the protein of interest by a 2A self-cleaving...microscopy (University of Amsterdam). He develops, characterizes and uses genetically encoded fluorescent probes...
  6. Hot Plasmids - February 2022

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    Blog Post
    ...acceptable variations in DR sequences. Figure 2: comparison of Cas 9 vs. Cas 12a expression cassettes...Cas12a’s ability to knock out multiple genes in parallel. Lastly, this Cas12a-based screening method was...gels. A: individually expressed proteins run in separate lanes. B: individually expressed and coexpressed...containing 150 or 250 kD proteins are also available separately. The proteins, which are purified via histidine...or Cas12a. Despite its small size, CasMINI is comparable in efficacy to dCas12a systems in both gene activation...
  7. Hot Plasmids - March 2020 - base editors, GEVI, MoClo, and optogenetics

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    Blog Post
    ...higher quenching of mScarlet emission. Figure 2: Ace-mScarlet is a fusion between the voltage-sensitive... was also between 1013 - 1014 vg/kg, a dosage comparable to those currently used in human gene therapy...response and brightness. They also do not spectrally separate from green sensors and blue-light-activated optogenetic...phytochrome-like fusion proteins from the plant Arabidopsis thaliana. In the presence of red light (650 nm... PCB is no longer present, the fusion proteins separate, inactivating Cre. This is critical for reducing...
  8. Using CRISPR/Cas9 to Edit Disease Out of the Genome

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    Blog Post
    ...cellular physiology.  https://doi.org/10.1002/jcp.30064 2. Barman et al. 2020. “A glance at genome editing with...with a dominant mutation in a gene that causes cataracts could be rescued by coinjection into zygotes of... explore its potential in mice with a dominant cataract disorder caused by a single copy of a gene known...
  9. Multiplexed Overexpression of Regulatory Factors (MORF) collection

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    Blog Post
    ...responsible for that differentiation.   Fig. 2: Single cell RNA-seq clustering of cells transduced...road map, and what was known about previously characterized TFs, the Zhang group were able to classify unknown...studied TFs, this functional association of the uncharacterized TFs is a useful finding. Transcriptional program...
  10. 3 Challenges in Plant Synthetic Biology

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    Blog Post
    ...and open a new conversation about GMOs.  Challenge #2: Technical obstacles to plant synthetic biology In...transformation to testing and a lack of well-characterized genetic tools make it challenging to engineer...understood. Additional work has also identified and characterized mechanisms and components of the circadian rhythm...
  11. Antibodies 101: Isotypes

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    Blog Post
    ...IgM, IgD, and IgG are deleted.     Figure 2: Isotype switching requires DNA recombination of the...isotype? An isotype determines several key characteristics of an antibody as well as the role it plays... regions result in several unique physical characteristics of these five isotypes, such as the number ...IgG4. IgE IgE antibodies help protect against parasites but also play a role in allergies. They are found...
  12. Choosing a CRISPR Nuclease: Site Accessibility, Specificity, and Sensitivity

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    Blog Post
    ...divided by the off-target activity. Figure 2: Specificity is the measure of off-target activity...experimental approaches. One example is CasX, characterized by the Oakes and Doudna Labs, which is both ...research and potentially treatments. Cas12b, characterized by the Zhang (Strecker et al., 2019) and Li ... relative to Cas9. As scientists continue to characterize CRISPR nucleases from a variety of sources, ...
  13. Back to Bacteria: CRISPR gRNA Multiplexing Using tRNAs

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    Blog Post
    ...3570-5. doi: 10.1073/pnas.1420294112. Epub 2015 Mar 2. PubMed. Find the plasmids from this publication ...from Pseudomonas aeruginosa to cleave 4 gRNAs separated by 28 base Csy4 recognition sites from a polycistronic...protoplasts. Each pair of gRNAs targeted genomic sites separated by 350-750 bp, allowing them to examine the frequency...different biological systems. Although Xie et. al characterized the system in plants, PTGs will likely work ...
  14. Antibodies 101: Epitope Tags

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    Blog Post
    ...is the most charged, with 5 negatively charged and 2 positively charged amino acids. FLAG tag has been ...the need for an antibody. Tags can enable the separation of detection of a mutant protein vs. endogenous...
  15. How to Deposit Your Plasmids with Addgene

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    Blog Post
    ...two options to begin your plasmid deposit. Figure 2: Choose to submit plasmid(s) online or by using a ...format. Figure 6: Add sequence, maps, and files. Step 2: Gene and Insert *Note: This page will not appear ... into it. You will have the option to indicate separate promoters, tags, or cloning information for each...
  16. Channelrhodopsins with improved light sensitivity for minimally-invasive optogenetics

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    Blog Post
    ...still depolarize neurons at lower MOIs. Figure 2: ChRgers are delivered by intravenous injection into... “designer” channelrhodopsins with desired characteristics. The model was trained to predict if a channelrhodopsin...these remaining sequences were selected for characterization with patch clamp electrophysiology. All thirty...named ChRger1, ChRger2, and ChRger3, were then characterized further by expression in cultured neurons and...performed well in a tissue culture dish, that doesn’t guarantee their success in vivo. Therefore, the Arnold and...
Showing: 361 - 380 of 486 results