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We narrowed to 818 results for: cell

Showing: 191 - 200 of 818 results

  1. CRISPR Guide

    Type
    Collection
    ...with Haploid Embryonic Stem Cells Carrying a Guide RNA Library. Cell Stem Cell . 17 (2), 221–232. PMID: ...in the same cell. This is called multiplexing , and increases the likelihood that any cell containing ...can increase efficiency. Synchronizing cells or modulating the cell cycle can help as HDR takes place during...expressing stable cell line. After applying your screening conditions to your transduced cell population, you...tracking of RNA in live cells, including orthogonal RNA/DNA labeling in the same cell. Figure 11: Overview...promiscuity is unique to bacterial cells and does not occur in mammalian cells. SHERLOCK , developed by the ...genomic loci in living human cells by an optimized CRISPR/CAS system. Cell . 155 (7), 1479–1491. PMID: ...

  2. 27 Hot Plasmids from 2016

    Type
    Blog Post
    ... HEK293FT cells expressing a single gRNA targeting a single gene. The gRNA expressing cells were then ...plasmid to generate a population of mutant cells. The mutant cells were treated with WNV at a dose and duration...regulate the ability of WNV to induce cell death in infected cells (SEL1L, UBE2J1, EMC3, EMC2, DERL2, UBE2G2...AID-tagging system to essential genes in human cells and mouse ES cells because it was difficult to fuse the AID...-to-study genes in hard-to-study cell types. Natsume T, et al. Cell Rep. 2016. PubMed PMID: 27052166 ...small GTPases involved in cell signaling pathways that control many cellular processes such as differentiation...therefore varies with cellular location: it is both red and green through much of the cell, but turns more ...

  3. Five Popular Model Organisms

    Type
    Blog Post
    ... properties and processes with our own cells. Like human cells, yeast DNA is packaged into chromosomes...differentiation of β-cells in the the developing zebrafish pancreas. They first tagged these cells using plasmids...recapitulate the complex interactions between cancer cells, therapeutic drugs, and the rest of the body than...than studies in other model organisms or cell culture. For example, Scott Lowe’s lab utilized mice to study...to identify a set of mutations that made cancer cells more resistant to chemotherapy. You can find these...to optimally control gene expression in specific cells of the fly (Pfeiffer et al., 2010). Yeast (Saccharomyces...is very amenable to genetic manipulation. Yeast cells are great model organism not only for the reasons...

  4. Hot Plasmids September 2018 - Optogenetics, RNA Localization, Fluorescent Protein, and Base-editing Tools

    Type
    Blog Post
    ...manipulations on cells, and has potential use for a wide range of applications in cellular biology. Van ... of a microtubule-associated protein to regulate cell growth dynamics Article contributed by Klaus Wanisch...of the modified EB1 protein are overexpressed in cells, microtubule growth can be switched off with blue...paper demonstrated that the migration of a cancer cell line equipped with photodissociable EB1 could be...Van Haren J et al. Nature Cell Biology 2018 Pubmed PMID 29379139. The “Riboglow” platform for visualizing...used to visualize RNA localization in mammalian cells. These tools consist of cobalamin-binding riboswitches...proteins (FP) with improved tissue penetrance and live cell imaging capabilities. Upon developing a new imaging-based...

  5. Sequencing Options for CRISPR Genotyping

    Type
    Blog Post
    ...Digenome Seq 0.1% Cell-free (in vitro) Works across all cell types Must be verified with cell-based method ...Requires large cell population, senstive to time since cell fixing HTGTS Not reported Cell-based Identifies...method IDLV 1% Cell-based Programmable, can detect DSBs in live cells Not as senstive as other unbiased methods... use single cell clones for in vitro CRISPR experiments. The likelihood that a single cell clone derived...picture of the impact of CRISPR editing in the model cell line or organism. Several options exist for unbiased...Osborn et al. 2016) and HTGTS (Frock et al. 2015) for cell-based experiments. These strategies can be used ...off-target editing events. Two of the most common cell-based methods are genome-wide, unbiased identification...

  6. All in a Twist: dsRNA

    Type
    Blog Post
    ...mammalian cells. Here, we will cover how these structures are generated, why it’s important for cells to sense...., Hur, S. Cellular origins of dsRNA, their recognition and consequences. Nat Rev Mol Cell Biol, 23: 286...performs almost all of its biological functions in our cells in the single strand form, but double stranded RNA...with bidirectional transcription. In an uninfected cell, dsRNA rarely circulates, but upon viral infection...Unlike dsRNA, DNA:RNA hybrids are abundant in normal cells and are arise from a ssRNA engaging one strand of...genes is constantly occurring throughout a single cell, so these nucleic acid hybrids are always around...at risk. Consequences of duplexed RNA Mammalian cells have multiple receptors in place to sense dsRNA ...

  7. Antibodies 101: Designing Your First Flow Panel

    Type
    Blog Post
    ...and inside the cells and are thus typically used for distinguishing live from dead cells. The combination...say I am culturing HEK 293T cells in vitro. I transduced the cultured cells with a virus that encodes a...panel. Besides some background cell death constantly happening in cell culture, the transduction process... to some cell death. As a result, there is a high abundance of positively stained dead cells present and...When analyzing your cells using flow cytometry, you are typically measuring the presence or absence of...certain markers on the surface or the inside of your cells. While proteins themselves can emit intrinsic fluorescence...Another way to label proteins is through treating cells with fluorophore-conjugated antibodies that attach...

  8. Overcoming the Challenges of Lentiviral Production

    Type
    Blog Post
    ...transfected into a packaging cell line, usually a derivative of 293T. Packaging cells are incubated and after...fine-tuning selection and expression in your target cell line, researchers often find themselves faced with...impact the transfection efficiency of the packaging cell line and thereby affect the titer of the virus. ...layer flask will require some initial optimization; cell number, media volume, and plasmid concentrations...larger vessel to the 10 cm2 dish and adjusting the cell number, plasmid concentration, and experimental ... consideration when titering a lentivirus is the cell line that is used for titering. Typically researchers...researchers will choose a relatively permissive cell line for titering in order to obtain the best titer possible...

  9. Viral Vectors 101: Systemic Capsids

    Type
    Blog Post
    ... your cell type of interest, while miRNA target sites can be used to prevent expression in cell types ...endothelial cells in rodent CNS AAV-PHP.V1 shows higher transduction in CNS endothelial cells (60%) and ...endothelial cells in the retina and spinal cord (Krolak et al., 2022). Systemic capsids for broad cell type ...delivery across species. Cell, 184(19), 4919-4938.e22. https://doi.org/10.1016/j.cell.2021.08.028 Vormstein-Schneider...capsid, (b) cargo, and (c) delivery method determine cell type- or region-specific transgene expression. (...include variants with broad CNS or PNS transduction, cell type specificity, or retrograde transport in neurons...sequences, denoted by triangles] facilitate tissue or cell type specificity. An on/off genetic switch can be...

  10. CRISPR 101: Targeting RNA with Cas13a (C2c2)

    Type
    Blog Post
    ...thought to activate programmed cell death or a dormant state for bacterial cells that have been infected with...bacterial cells, LwaCas13a does not display nonspecific RNA cleavage activity in eukaryotic cells. They arrived...target RNAs, although its usefulness in bacterial cells will likely be limited by the propensity of Cas13a...pool of RNAs) or studying RNA processing in live cells. Indeed, groups have utilized dCas13 fusion proteins...genotype human DNA, identify tumor mutations within cell-free genomic DNA, and detect COVID-19 (Joung, Ladha...Ladha et al., 2020). Cas13a in mammalian cells The Zhang lab made the exciting discovery that some Cas13a...Cas13a orthologs can function in mammalian and plant cells (Abudayyeh et al., 2017). They characterized Cas13a...
Showing: 191 - 200 of 818 results