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We narrowed to 987 results for: des

Showing: 201 - 220 of 987 results

  1. Ginkgo Bioworks COVID-19 Collection

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    Collection
    ...Bioworks (Link opens in a new window) used their DNA design and synthesis capabilities, in collaboration with...Truncated for making pseudovirus (Ctrunc) ID Plasmid Description Mutations Tags Industry Additional Resources ...

  2. CRISPR Plasmids for Genomic Visualization

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    ...Resources CRISPR Guide Viral Preps Protocols gRNA Design Tools CRISPR Blog Posts Using catalytically inactive...easy to implement due to the simplicity of gRNA design, programmable for different genomic loci, capable...

  3. Evolution of Lab Techniques

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    Blog Post
    ...the order of nucleotides in a string of DNA (7). Sanger sequencing uses modified nucleotides, called dideoxynucleotides...the widespread use of Sanger sequencing. Building upon this technology, radiolabelled nucleotides were...causes sickle cell anemia. The mutation happens to destroy a sequence recognized by the restriction enzyme...synthesis reaction along with all four regular nucleotides results in the synthesis of DNA strands of all...fluorescence activity as fluorescently labeled nucleotides are incorporated, a method called pyrosequencing...nanopore-based DNA sequencing which reads the nucleotides of a DNA strand as it slips through a tiny pore... the different electrochemical properties of nucleotides (8). Compared to older technologies nanopore-...

  4. CRISPR Plasmids - Purify Genomic Loci

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    ...Resources CRISPR Guide Viral Preps Protocols gRNA Design Tools CRISPR Blog Posts Identifying molecules associated...interest in vivo. For CRISPR-based purification, design your gRNA sequence to direct dCas9 to a specific...

  5. Fluorescent Protein Guide

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    ...Localization Determine where your protein of interest resides by using a well-characterized fluorescent fusion... Medical School Fluorescent Biosensor Database designed by Eric Greenwald and the Jin Zhang Lab at UCSD...

  6. A Needle in a Base-Stack: Cas9 Structural Biology

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    Blog Post
    ...Have you ever designed a CRISPR guide RNA and wondered why it is limited to only 20 bases, or why it’...understand the parameters of CRISPR experimental design. Let’s dive into some structural biology! Major... lobes, REC and NUC, and their subdomains. NUC includes the HNH and RuvC catalytic domains, as well as...as the CTD (also known as the PI), while REC includes most of the bridge helix. Created with BioRender.com...Fact! Even though the Cas9:RNA complex is well described in the closed conformation, recent electron microscopy... does not include stem loop 3, and guide RNA nucleotides 11-20 are not resolved due to structural disorder...2017). Within an interior cavity, Cas9 grips nucleotides 1-10 of the guide RNA, prearranged for base pairing...

  7. DNA Service - Cloning Grade DNA

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    ...Plasmids Available as Cloning Grade DNA ID Plasmid Description Industry PI FAQ What Quality Control analyses...cloning grade DNA into cells? Cloning grade DNA is designed for use in cloning applications. Direct transfection...

  8. All Antibodies

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    ...larger Antibody Plasmid Collection , which also includes other types of affinity reagents such as scFvs...Browse All Antibodies ID Recombinant Antibody Description Source Species Isotype Reactivity Recommended...

  9. Deep Dive: qPCR

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    Blog Post
    ...from Wong, 2018   Primers Design of primers and probes Primer design, of course, could easily be its...useful primer design resources in the References and Resource section. Validation Once designed, your primer.... For example, chemistries that rely on hairpin design of probes/primers often offer higher allelic specificity...Taqman) Low; can be reduced with a double-quencher design Yes, one Yes Yes Agarose gel or uMelt analysis...Reference Genes  Choosing a set of reference genes deserves more attention than it usually receives. Different... multiple reference genes whenever possible (Vandesompele, 2002), and it's possible to multiplex your ...documented in the literature, a geNorm study (Vandesompele, 2002) will help you select the appropriate ...

  10. Zinc Finger Consortium: OPEN Reagents

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    ...10.1038/nprot.2009.98. Epub 2009 Sep 17. PubMed . Description Use of the OPEN method requires OPEN pools (available...using the bacterial two-hybrid system originally described by Hochschild and colleagues ( Dove et al., Nature...

  11. CRISPR Between the Genes: How to Experiment with Enhancers and Epigenomics

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    Blog Post
    ...this article, Quilt CTO Aneesh Karve, shows how to design experiments that work anywhere in the genome. Aneesh's...enhancers! This leads us to a three-step approach for designing an experiment to identify the critical NANOG binding...Find Enhancers that have NANOG binding sites 2. Design a CRISPR screen to target and disrupt the NANOG...anyone can find enhancers with Quilt. Seek and destroy enhancers with CRISPR Armed with the genome math...expression for NANOG enhancers, we’re ready for step 2: design a CRISPR screen to disrupt these enhancers. The...attenuated retrovirus in the same family as HIV. By design, our lentivirii are genetically programmed to CRISPR...Lentivirus from Addgene If you’re interested in designing your own CRISPR screens for enhancers, check out...

  12. Fluorescent Proteins 101: Monitoring Cell Mobility Using Fluorescent Proteins

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    Blog Post
    ...their specificity or from the thymus to the lymph nodes. These methods gave researchers much more information...expressing cells. For example, by harvesting lymph nodes at different times after antigen challenge, scientists... cellular dynamics in lymphoid organs. In lymph nodes, for example, two-photon microscopy allowed scientists...extravasate from the bloodstream to invade lymph nodes and scan antigen presenting cells, but two-photon...interactions in diverse tissues, including lymph nodes, brain, liver, gut and skin. Two-photon intravital... 2016)? How do dendritic cells migrate to lymph nodes to activate T cells (Celli et al 2008, Kitano et...dynamics within the germinal center of murine lymph nodes. However, one must pay attention to time scale when...

  13. Plasmids 101: Modular Cloning Applications and Kits

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    Blog Post
    ...many MoClo kits are designed with specific model organisms in mind, others are designed for flexibility. ...Synthetic biology in bacteria MoClo is commonly used to design TUs and multi-TU constructs for synthetic biology..., biofuels, and natural products without the undesirable side products generated during chemical synthesis.... phaffii, then the MoClo YTK Kit specifically designed for S. cerevisiae is at your service (Lee et al...chromosomal integration and gene expression, the system includes a toolkit to express recombinant proteins within... are endless: genetic circuits with multiplexed guides, mini screening libraries, direct edit optimization.... The Fragmid kit described above works in both mammalian systems and Drosophila. Similarly, the Multi-Kingdom...

  14. New Tools Enable CRISPRa for Neuroscience Applications

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    Blog Post
    ...Patrick Miller-Rhodes from the University of Rochester Medical Center. Patrick Miller-Rhodes is currently...This post was contributed by Patrick Miller-Rhodes, a Ruth L. Kirschstein NRSA Predoctoral Fellow at ...this technological gap, a trio of recent papers describe the development of CRISPR activation (CRISPRa)... large size of Cas9 activators, which largely precludes delivery by adeno-associated vectors (AAV). This...packaging capacity than AAV. Such an approach was described recently by the Day Lab, who developed neuron-... selected the immediate-early gene Bdnf, which encodes brain-derived neurotrophic factor (BDNF). Bdnf ...High-throughput screening strategies Although the tools described above make CRISPRa more accessible to neuroscientists...

  15. Plasmids 101: Shuttle Vectors

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    ...affects all kingdoms of life. Of course, that includes you. Besides the risk to the researcher, Zeocin has been...most yeast vectors and many mammalian vectors are designed to shuttle between species. Figure 1: Shuttle...host’s replication machinery. A shuttle vector designed for unrelated bacteria should include oris for...target species. Fun fact! Plant vectors are usually designed to shuttle between E. coli and Agrobacterium tumefaciens...protects against any of them. But different aminoglycosides work on different host species: kanamycin targets...media that supplies the key nutrient. The vector provides the missing synthesis machinery, and the cells...image for individual analysis. A shuttle vector designed for this approach in a mammalian cell experiment...

  16. Supporting Reproducibility with a Connected ELN

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    ...reproducibility than others. Unfortunately, most ELNs are designed as closed ecosystems and act as data silos because...RSpace ELN supports reproducibility RSpace was designed in response to requirements that emerged from ...used in research, and data repositories. Below I describe how each of these kinds of connectivity facilitates... in institutional and lab servers specifically designed to hold large amounts of data. Although it may... use of other tools they use in research. This includes chat apps like Slack, Microsoft Teams, and Google...individual documents or more complex datasets into the desired repository. They also support entry of required...deposits will be made. The Dataverse integration is described in this video and the Figshare integration in ...

  17. Plasmids 101: Positive and Negative Selection for Plasmid Cloning

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    Blog Post
    ...property by including ccdB on its destination plasmids. In the destination plasmid, the ccdB gene is flanked... rest do not grow. While there are many ways to design your positive selection strategy, here are a few...straightforward in cases where the inserted DNA includes an antibiotic resistance marker. After transformation...grow. However, often times, the plasmid backbone includes an antibiotic resistance cassette and you aren...backbone contains your gene of interest. Auxotrophy Besides antibiotic selection, you can select for a successful...prototrophy come into play during cloning if you’ve designed your experiment using an auxotrophic strain of...sites. To introduce a gene of interest into the destination plasmid, recombination sites must first be added...

  18. Serotype Testing AAV

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    ...Serotype Testing pAAV-CAG-GFP (Plasmid #37825) Description : Ready-to-use AAV in various serotypes suitable... Add to Cart pAAV-hSyn-EGFP (Plasmid #50465) Description : Ready-to-use AAV in various serotypes suitable...

  19. The Fluorescent Vegetables in Aptamer Soup

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    ...Aptamer Fluorophores describes the enrichment process used to evaluate oligonucleotides for binding affinity...of Spinach. In doing so, they identified the nucleotides that contribute to the instability of Spinach...similar levels of fluorescence when bound to DFHBI despite being approximately half the length (Warner et ...also smaller than any form of Spinach - only 49 nucleotides in length - and is better able to maintain its... of colors, so do aptamers! Corn was recently described in 2017 (Song et al., 2017). Corn naturally dimerizes... Red and orange fluorescent aptamers Corn was described in the same study as Red Broccoli and Orange Broccoli...Broccoli, and share similar properties to Broccoli despite binding to a different small molecule. Notably,...

  20. Site Directed Mutagenesis by PCR

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    Blog Post
    ...for the desired modification. Finally, the positive clones are sequenced to confirm the desired modification...Primer Design As a rule of thumb, 11 bp of complementary sequence on either side of the desired mutation...introduced to plasmids using primers (with the desired mutation) in a PCR protocol that amplifies the ...mutated clones. Forward and reverse primers are designed to be complementary, but each primer may extend...Polymerase To ensure that you don’t introduce undesired mutations through the PCR process, you need a ...The resistance marker from the parental plasmid provides a mean for selecting for transformants which have...mutagenized plasmids Once constructs containing the desired modification have been identified (and confirmed...
Showing: 201 - 220 of 987 results