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Showing: 341 - 350 of 1045 results
  1. RNA Extraction Without A Kit

    Type
    Blog Post
    ...enzymes that degrade RNA, are especially hardy proteins that are found in and on everything, including...solution and spun down the homogenate to remove the insoluble material. Then, the homogenate was loaded onto... hours to separate the intact RNA from DNA and proteins. Although very effective at isolating total RNA...RNA could be effectively separated from DNA and proteins by a simple extraction protocol with guanidinium...in a guanidinium thiocyanate solution. However, instead of RNA separation using cesium-chloride gradients...in the top, aqueous layer, while DNA and other proteins are retained in the interphase and bottom, organic...into one step. After homogenization in TRIzol®, insoluble material is removed via centrifugation and the...
  2. Plasmid Tools for Microbiome Studies

    Type
    Blog Post
    ...suite of plasmids (pGT) with various replicative origins that can be used for broad or narrow range of microbial...longitudinal studies of the gut microbiome, James Collins’s lab developed a paper-based method that can be...concentration within a sample. Using this system, the Collins lab was able to detect mRNA from 10 bacteria of...methods, the ability to detect mRNA transcripts of toxins and other transcripts of interest is a benefit ...with broad host-range (Meyer, 2009). The vector retains the oriT for delivery into recipients by conjugation...microbial population dynamics in the gut can provide insight into how the microbiome responds to infection, ... (DCDC), relies on the assembly of fluorescent proteins into one bright particle that segregates into ...
  3. CRISPRainbow and Genome Visualization

    Type
    Blog Post
    ...researchers have used fluorescently tagged DNA-binding proteins to label certain loci, but this approach is not...Cas9 (dCas9) cannot induce gene editing, but it retains its gRNA-directed targeting capacity. By using ...two hairpin sequences, which recruit fluorescent proteins BFP, GFP, and RFP fused to the respective hairpin...and red. In contrast, a gRNA with two different hairpins will produce a secondary color cyan, yellow, or... individual colors to 6. A gRNA with all three hairpins generates white light. All 6 gRNAs can be expressed...composite. gRNAs with two identical hairpin binding domains produce blue, green, or red fluorescence, depending...Learn Some of the Pitfalls When Using Fluorescent Proteins Control Protein Activity with GFP Resources on...
  4. Enhancing CRISPR Targeting Specificity with eSpCas9, SpCas9-HF1, & HypaCas9

    Type
    Blog Post
    ...However, instead of weakening interaction sbetween the non-target strand and Cas9, Kleinstiver et al disrupted..., researchers from the Zhang lab at the Broad Institute, the Joung lab at Harvard Medical School, and ...groove formed by the Cas9 HNH and RuvC nuclease domains 2. Interactions between the target strand and ...specificity. Design and testing of SpCas9-HF1 Kleinstiver et al and the Joung Lab similarly thought that...mutations N497A, R661A, Q695A, and Q926A (SpCas9-HF1 contains all four mutations). Although the precise mutations...from Addgene here! Future possibilities for Cas proteins With their enhanced specificity, eSpCas9, SpCas9...25079318. PubMed Central PMCID: PMC4176945. 4. Kleinstiver, Benjamin P., et al. "High-fidelity CRISPR–Cas9...
  5. Adenoviral Vector Production and Troubleshooting

    Type
    Blog Post
    ...icosahedral capsid made of 3 types of proteins: fiber, penton and hexon proteins. The viral genome DNA is further... which contains the adenoviral genes necessary for virus production. For detailed instructions on how ...consisting of a capsid surrounding an inner core which contains the adenoviral genome. The genome itself is a ...further protected by histone-like proteins forming the nucleocapsid. B) Three generations of adenoviral ...ceases relatively quickly due to immune response against AdV. Importantly, recombination-competent adenovirus...helper adenovirus is required to provide the viral proteins in trans. The Gutless AdV have generated high ...
  6. Hot Plasmids May 2018 - Optogenetics, Decaffeination, Biosensors, and Fluorescent Protein Tools

    Type
    Blog Post
    ...at the Korea Advanced Institute of Science and Technology (KAIST) and Institute for Basic Science (IBS...protein. After fusing the CRY2 and CIB1 domains to separate proteins of interest, a researcher can cause ...robust and efficient oligomerization of target proteins in response to blue light. This tool, CRY2clust...2017. PubMed PMID: 28288122. New fluorescent proteins for use as FLIM-FRET acceptors  Listen to the...(YFP) with an excitation peak of 519 nm. These proteins have improved photophysical properties and can...maturation kinetics than other dark fluorescent proteins, it has good signal stability allowing for minimized...
  7. Plasmid-based Recombinant Monoclonal Antibodies: What They Are and Why You Should Be Excited About Them

    Type
    Blog Post
    ...detect, purify, quantify, deplete, and visualize proteins of interest (Greenfield, 2014). Traditionally,...Therefore, researchers from over 100 scientific institutions have proposed a shift to recombinant DNA-based...expression. If starting from a protein sample (for instance, affinity purified antibodies from a patient’s...the line and subsequent cloning of the antibody chains (Crosnier et al., 2010; Andrews et al., 2019). ...well in animals because of similarities to host proteins. After the antibody of interest has been cloned...non-antibody based affinity reagents (e.g., monobodies, DARPins) (Helma et al., 2015).    The Many Benefits of...and sequences for antibodies are not shared. For instance, through open plasmid sharing, the CRISPR community...
  8. Nanoblades: Tiny CRISPR Ninjas for Genome Editing Difficult Cells

    Type
    Blog Post
    ...precise insertion of a DNA sequence ranging from a single nucleotide change to large insertions like the...MLV)-like particles loaded with Cas9-gRNA ribonucleoproteins (RNPs). According to the authors, they named...polyprotein Nanoblades are formed when viral structural proteins, such as the MLV protein Gag, multimerize and ...cleaves the proteolytic site connecting the two proteins, thus releasing Cas9. Nanoblades can also deliver...loaded with 1-4 different gRNAs. Viral envelope proteins To alter the cell tropism of Nanoblades, different...alternative method for generating transgenic mice strains and for non-invasive in vivo gene editing. The ...viral-derived Nanoblades loaded with Cas9-sgRNA ribonucleoproteins." Nature communications 10.1 (2019): 45. ...
  9. BeHeard Award 2018: Diseases of Glycosylation, Arginine Mutagenesis, & Neural Development

    Type
    Blog Post
    ...Arg-mutant proteins in living baker’s yeast cells, including Arg-mutant yeast homologs of human proteins that...past, we've been working with the Rare Genomics Institute to provide plasmid grants to researchers working... his lab’s research is the mechanisms by which proteins assemble into functional multi-subunit macromolecular...function of even a small fraction of Arg-mutant proteins could improve health outcomes for millions of ...treatment for rare diseases caused by Arg-mutant proteins, but there is currently no evidence of Arg-mutant...large number of other disease-linked Arg-mutant proteins both in yeast and human cells in order to determine...rescue of a variety of disease-linked Arg-mutant proteins in the lab, clinicians might consider prescribing...
  10. Quickest Way to Deposit Plasmids: The Deposit Spreadsheet

    Type
    Blog Post
    ...shipping materials (i.e., a deposit kit) with instructions on how to send liquid DNA or bacterial streaks...lab. Plasmid Type Choose from: Encodes one insert, encodes gRNA/shRNA, or empty backbone. Purpose...plasmid will work for them. Species of Gene or Insert Choose from: H. sapiens (human), M. musculus ...luciferase, cre/lox, yeast expression, worm expression, insect expression, plant expression, mouse targeting, ... cannot be propagated in any of these standard strains, choose other, indicate strain in the “Growth Strain...showing the first eight columns and a pop-up instruction box for the “Purpose” field. If you ever have...should go into a cell, hover over the cell and instructions will pop up. When you’re finished filling out...
Showing: 341 - 350 of 1045 results