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Showing: 141 - 160 of 508 results
  1. Hot Plasmids - June 2020 - Barcoded CRISPR Library, Sparse Cell Labeling, Calcineurin Reporter, and DNA Staining Dye Alternative

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    ...barcodes within the gRNA sequences. This allowed tracing of the performance of each gRNA multiple times ...protein phosphatase that responds to rising intracellular calcium levels within the cell. When levels ...required for virulence in pathogenic fungi, it is an attractive drug target. Calcineurin reporters allow scientists... wild type (top panels) and cells with high intracellular Ca2+ (bottom panels) equipped with destabilized...
  2. The MTA at Addgene

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    Blog Post
    ...centralized tracking when biological reagents are shared — both at what time and with whom. Tracking these ...read on!  What is the MTA?  An MTA is simply a contract or agreement that states the terms of use for ...meaningful progress depends on things being organized, tracked, and clearly communicated. And that’s where MTAs...
  3. Rosella: A Fluorescent pH-Biosensor for Studying Autophagy

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    ...autophagosomal membranes, so tagging it with GFP allows for tracking the localization or accumulation of pre-autophagosomal...an autophagy-independent manner. Additionally, tracking Atg8p or LC3 doesn’t provide information about...easier to study the mechanisms behind autophagy by tracking what’s being transported to the yeast vacuole ...vacuole (i.e. cytosol, mitochondria), rather than tracking generic autophagy markers. It’s particularly useful...
  4. Giving gRNAs a Facelift - Synthetic and Beyond

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    ... the crRNA or the tracrRNA. Of course, in a single guide system (crRNA and tracrRNA as a single molecule...region associates with the trans-activating crRNA (tracrRNA) which interacts with the Cas9 protein. These ...you to visualize transfection efficiency and even track localization in cellular experiments. There are ...
  5. Overcoming the Challenges of Lentiviral Production

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    Blog Post
    ...concentrated by a variety of methods such as ultracentrifugation, centrifugation on a sucrose gradient, spin...number of 10 cm2 dishes. While this option is attractive because the same procedure for a single 10 cm2...relatively inexpensive and does not require an ultracentrifuge, PEG will precipitate all proteins in a solution...high-titer lentivirus preparations without ultracentrifugation. Sci Rep. 2015; 5:13875. PubMed PMID: 26348152...
  6. Getting Started with Behavioral Neuroscience: Standardizing Experiments and Using Viral Vectors

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    ...behind from a preceding animal (ex: urine) can be distracting. If it is not cleaned, animals tested towards...experiment series would behave very differently (distracted) from the ones tested at the beginning. Variability...Both AAV and lentiviral vectors are used for intracerebral injections. AAV particles are smaller and may...liquor of the cerebral ventricles (ICV, intracerebroventricular) to minimize tissue damage; however, the...
  7. Deep Dive: Fixing and Permeabilizing for Immunofluorescence

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    ...better access to intracellular targets. If your target is already on the extracellular side of the membrane...is suitable for antibodies that bind to the extracellular portion of a protein. B) Permeabilizing with...antibodies into the cell where they could bind to intracellular epitopes. C) Permeabilizing with a non-ionic...
  8. Cpf1: A New Tool for CRISPR Genome Editing

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    ...and requires only one RNA rather than the two (tracrRNA and crRNA) needed by Cas9 for cleavage. In certain...target. Cpf1 also does not require an additional tracrRNA. Once they had determined the minimal elements...favored by SpCas9. Since Cpf1 doesn’t require a tracrRNA, crRNA guides are only ~42 nt long. Direct synthesis...significantly cheaper than that of the ~100 nt crRNA/tracrRNA hybrid guides needed for Cas9 function. Since ...
  9. CRISPR 101: Targeting RNA with Cas13a (C2c2)

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    ...C2c3 are related to Cpf1, but they require both a tracrRNA and crRNA to cleave target DNA (Cpf1 requires ...PAM (PFS) Cleavage Mechanism Cas9 HNH, RuvC TracrRNA, crRNA DNA 5' NGG Specific blunt ended DSB...endogenous CRISPR/Cas9 system, Cas9 uses both a tracrRNA and crRNA to facilitate binding and cleavage of...have utilized dCas13 fusion proteins for imaging, tracking, modulating splicing, and regulating expression...
  10. Plasmids 101: E. coli Strains for Protein Expression

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    ...not recommended for toxic proteins BL21-A1 Tetracycline Arabinose-inducible expression of T7 RNAP; IPTG...T7RNAP-tetA General protein expression  BLR (DE3) Tetracycline RecA-deficient; best for plasmids with repetative...proteins Origami2 (DE3)** Streptomycin and Tetracycline Contains highly active thioredoxin reductase...troubleshooting measures that can help get you back on track: Compatibility: Double-check your plasmid backbone...
  11. Replacing Paper: Tips for Choosing an Electronic lab Notebook

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    ...that bring more to the table in terms of data traceability and reproducibility of research. Electronic ...work. It is already becoming impossible to keep track of it all in paper notebooks. Following these findings...one place, easily retrievable, searchable and traceable. However, switching from paper to an electronic... place and therefore make it easier for them to track and find data and information. If an employee leaves...
  12. Hot Biosensors 2022: Year-End Roundup

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    ...fluorescence unit fused with TRansmembrane region-to-IntrAcellular loop linkers” (MTRIA for short), where a fluorescent...inserting a circularly-permuted GFP into an intracellular loop of various G-protein-coupled receptors....fluorescent sensor for real-time measurement of extracellular oxytocin dynamics in the brain. Nat Methods....  Find B-gTEMP plasmids here!   Lu K, et al. Intracellular Heat Transfer and Thermal Property Revealed ...
  13. Plasmids 101: Common Lab E. coli Strains

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    ...1885. E. coli are mainly found in the intestinal tract of animals. There are many different naturally occurring... streptomycin Tn10   Confers resistance to tetracycline Additionally, Table 2 provides a quick reference...galE15 galK16 rpsL(StrR) endA1 λ- XL1 Blue Tetracycline Blue/white screening and routine cloning, nalidixic...lacIq Δ(lacZ)M15] hsdR17(rK- mK+)  XL10 Gold Tetracycline and Chloramphenicol High competency cloning ...
  14. Technologies Enabled by NanoLuc® Luciferase

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    ...luminescence. Intracellular Calcium Sensor Yang, J. et al. (7) wished to trigger intracellular Ca++ release...biosensors utilizing NanoLuc® luciferase Many intracellular sensors of events like calcium release have ...Luciferase. CalFlux VNT responds to changes in intracellular calcium and is useful for direct imaging of ...
  15. Viral Vectors 101: AAV Variables That Matter

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    ...your gene of interest. This can cause issues in tracing studies, where it could potentially label cells...2002). Lack of an Immune Response against the Tetracycline-Dependent Transactivator Correlates with Long-Term...vector-mediated transduction of the corticospinal tract: Comparison of four promoters. Gene Therapy, 28(...dual presynaptic inputs using cFork anterograde tracing system. Experimental Neurobiology, 29(3), 219–229...
  16. Custom CRISPR Screens & the Green Listed Software

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    ...smaller validation screen using selected gRNAs extracted from the same or another library. These different...in animal model systems. Use Green Listed to extract gRNAs that target your list of selected genes. ... design. With Green Listed you can also easily extract gRNAs for the same gene from several libraries,...have different names, and the software can only extract gRNAs for genes using the name that is used by ...
  17. The CRISPR Software Matchmaker: A New Tool for Choosing the Best CRISPR Software for Your Needs

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    ... that we can invest our time into learning and extract the most value? This is only one of many decisions...tools assess repair events by type (NHEJ/HDR) and track indels at a single locus, usually the target site...on downstream results. Examples: “HTML”, “visual track”, “plot”, “tabular”, “interactive”, and “save”. ...on your needs. We will likely begin to see a contraction of available tools with more and more features...
  18. Mapping the 4D nucleome with CRISPR/Cas9

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    ...could then be used to examine both inter- and intrachromosomal dynamics, and how they change in response ...turned their attention to mapping pairs of intrachromosomal loci. The technique successfully resolved ... this work represents the first mapping of intrachromosomal loci, a major benchmark in characterizing ...
  19. 9 Tips to Achieve Success in Academia

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    ...have: working to deadlines, writing up clear and attractive reports, being good at presentations and of course...studies. They suggest that you make time for extracurricular activities both to develop new skills and to...information about the benefits of pursuing extracurricular activities. Success evolves from passion True...
Showing: 141 - 160 of 508 results