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Showing: 351 - 360 of 928 results
  1. The CRISPR Software Matchmaker: A New Tool for Choosing the Best CRISPR Software for Your Needs

    Type
    Blog Post
    ...These insights are hard to appreciate without computational support. Indeed, rational sgRNA design is not...experimental applications in CRISPR engineering. When compared to that collective utility, it’s easy to fault...tool unique. The CRISPR Software Matchmaker is composed of these features and enables you to select the... based on their comfort level with operating a computer.  Examples: “offline”, “online”, “CLI”, and “GUI...few offline tools available mostly work on any computer but generally require working knowledge of the... power of each tool they are interested in by comparing their past results to the designs suggested by...pattern at any edit distance. It won’t, however, compute any score other than the edit distance. Added functionality...
  2. Simplify Cloning with in vivo Assembly

    Type
    Blog Post
    ...just one or two recombination events, homemade competent cells of 107 CFU/μg are perfectly fine, yet performing...performing multiple modifications will require ultracompetent (109 CFU/μg) cells. Primer design Using specific...insertions, deletions, and point mutagenesis to complex assembly of multiple genes. Primer design for each...the forward primer by adding a short sequence complementary to the 5’ end of the reverse primer. Mutagenesis...efficiency of assembly decreases as the cloning complexity increases. The efficiency of recombination is...increased with greater homology, so performing more complex procedures can be aided by extending homologous...
  3. Negative Can Be Positive: Open AAV Data with Addgene

    Type
    Blog Post
    ...Sharing data and community concerns AAV vectors are complex biological reagents; many factors, like storage...literature, scientists can use the Data Hub to compare different methods and vectors, and use this data...through word of mouth or old lab notebooks and computer files. If you asked your team members or colleagues...much unpublished AAV data do you have sitting in computers and notebooks right now?, I’m willing to bet the... rat CNS: AAV PHP.EB vector dose–response and comparison to AAV PHP.B. Gene Therapy, 25(5), 392–400. https..., C., & Flotte, T. R. (2015). Stability and compatibility of recombinant adeno-associated virus under ...
  4. Plasmids 101: Choosing an Antibiotic Resistance Gene

    Type
    Blog Post
    ...division. These non-plasmid-containing bacteria can compete with and confound the goal of your experiment —...spectinomycin is the more stable and expensive antibiotic compared to streptomycin. Spectinomycin/streptomycin can...option! Otherwise, since it isn’t universally compatible with all bacteria used in research, it isn’t ...express the Tn5 element, but thankfully, most competent cells do not express this factor. Zeocin is handy...host/plasmid DNA during selection if it’s not completely bound up. While this likely occurs at a low rate...Stability Time Saving?  Works for multiple organisms? Compatible with most bacteria? No satellite colonies? ...
  5. An Introduction to Adenovirus

    Type
    Blog Post
    ...immune system; and reconfiguring of the nuclear compartment, gene expression, and protein translation. Its...producer cells where there is E1 and E3 gene complementation. In target cells that are infected by the vector...virions) are not expressed. Note that replication-competent AdV vectors also exist and are used in certain...topic, which is that natural AdVs, replication-competent viruses with a recombinant genome, and adenoviral...higher than other viral vectors (tens of kilobases; compared to only 4.7 kb for AAV, 9 kb for retroviruses)...Tales: From the Cell Surface to the Nuclear Pore Complex. PLoS Pathog, 11(6), e1004821. https://doi.org/...
  6. Cpf1: A New Tool for CRISPR Genome Editing

    Type
    Blog Post
    ...require a single-component nuclease to mediate cleavage rather than the multi-subunit complex employed by ...repair templates should remove the PAM sequence. Comparing Cpf1 and Cas9 on-target and off-target efficiency...lower than that of the widely used SpCas9 and comparable to SaCas9. As seen with Cas9 orthologs, Cpf1 ...sophisticated genome-wide analysis. At many of its computationally predicted off-target sites, Cpf1 does not mediate...sites, according to Kim et al. Kim et al. also compared the ratio of total off-target to on-target modification...
  7. Advancing Biology with Zebrafish: Genetic Tools for Developmental Studies and More

    Type
    Blog Post
    ...morpholinos. When injected into zygotes, morpholinos complementary to a target mRNA inhibit its translation either...observation unlocked novel research into genetic compensation, a previously unknown mechanism of gene regulation...established body plan including head, eyes, and tail. Compared to the opaque mouse embryo, where similar processes... been tracked using microscopy and advanced computational approaches (Keller et al., 2008). This microscopy-based...generation time and labor-intensive maintenance compared to invertebrate model systems, and their resistance...References El-Brolosy, Mohamed A., et al. "Genetic compensation triggered by mutant mRNA degradation." Nature...
  8. Designing Your Chalk Talk for the Academic Job Interview

    Type
    Blog Post
    ...research proposal will distinguish between competing models. Comparing model A vs. B is more constructive than...about the time and resources required to feasibly accomplish the aims and clarify what type of aim you are...scaffolds with patient stem cells to generate compatible functional livers.” Why are you the best person...exist to solve the problem. What will you have accomplished in 5-10 years? You need to be able to describe...learned and/or now be possible to do? Research accomplishments are remembered for the problem solved, not ...
  9. Bacterial Toxin-antitoxin Systems as Molecular Biology Tools

    Type
    Blog Post
    ... assortment toxins to claim territory or kill competing microorganisms, but did you know bacteria also...subunit of DNA gyrase and trapping it in the cleaved complex. This results in DNA breakage and cell death. Conversely...toxin-antitoxin roles. Restriction modification systems are composed of restriction endonucleases and methyltransferases...populations to retain more of these plasmids as compared to those without the restriction modification ...described, the hok/sok systems consist of three components: Host killing (hok), a long-living toxin that...K. Burley. "Crystal structure of the MazE/MazF complex: molecular bases of antidote-toxin recognition....
  10. Overcoming the AAV Size Limitation for CRISPR Delivery

    Type
    Blog Post
    ...editing is the potential for off-target effects. To compare the off-target effects of SpCas9 and SaCas9, Zhang...normal and liver injury markers were not increased compared to a control AAV-GFP. Not only did the AAV-SaCas9...had modest editing rates in HEK-293T cells when compared to the full-length SpCas9. In 2016, Chew et al...cleavage of HBB and CCR5 genes in human cells using compact expression cassettes. Sci Rep 5: . https://doi....Desmarais J, Nogales E, Doudna JA (2019) CasX enzymes comprise a distinct family of RNA-guided genome editors..., Nureki O (2014) Crystal Structure of Cas9 in Complex with Guide RNA and Target DNA. Cell 156:935–949...
Showing: 351 - 360 of 928 results