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We narrowed to 813 results for: cell

Showing: 701 - 750 of 813 results
  1. The Pleiades Promoter Project

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    Collection
    ...therapies for brain disorders by enabling region- and cell-specific gene-delivery in the mouse brain through...
  2. Optogenetics AAV Preps

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    Collection
    ...Optogenetics AAV Optogenetic tools can be used to control cell activity in living tissue with light. Optogenetics...
  3. Addgene: The First Twenty Years

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    Blog Post
    ...Facebook and Gmail, were launched. And Melina Fan, a cell biology graduate student, was frustrated by the ...to receive the Massachusetts Nonprofit Network Excellence Award for our electronic MTA system. We also ...
  4. Antibodies 101: Fab Fragments

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    Blog Post
    ...fragments for multiplexed super-resolution microscopy. Cell Rep Methods 2(10):100301. https://doi.org/10.1016...
  5. Antibodies 101: Stripping and Reprobing Western Blots

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    Blog Post
    ...protein of interest in a complicated solution like cell lysate. But they can be a lot of work — and what...better than a nitrocellulose membrane. If you have already run your blot using nitrocellulose, you may decide...instructions for the membrane you are using. Dry nitrocellulose membranes are brittle, so proceed with caution...
  6. To Each HIS Own

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    Blog Post
    ...This can be pretty complicated given that a single cell has tens of thousands of proteins functioning in...
  7. Progress Towards a PAM-Free CRISPR

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    Blog Post
    ...Precise and efficient scarless genome editing in stem cells using CORRECT. Nat Protoc 12, 329–354 (2017). DOI...
  8. Lab Automation at Addgene

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    Blog Post
    ...our set up. The cooling block is used to keep our cells from warming up too much and dying.  Also, we added...
  9. 6 Tips for Grant Writing

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    Blog Post
    ...Cambridge University where he studied mechanisms of cell division. Recently Seán got the entrepreneurial ...research (either because of expertise, equipment, or excellence of the institution). Likewise, if you’re staying...
  10. Transferable Skills: Negotiation

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    Blog Post
    ...request? Your colleague is if someone can feed their cells this weekend - why? Do they have an important plans...
  11. Academic vs. Industry Postdocs

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    Blog Post
    ...Scientist at AstraZeneca. She has a background in cell and developmental biology and is applying this towards...
  12. Anatomy of a Plasmid Page at Addgene

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    Blog Post
    ...such as some of our viral vectors, in NEB Stable cells. Resource information: This section contains information...analyzed using Addgene’s Analyze Sequence tool. Excellent, how can I check if the plasmid will be within...
  13. Career Insights: Technical Support Specialist

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    Blog Post
    ...issue was with a custom-made reagent to manipulate cells (manufactured by one of the larger biotech companies...Specifically, roles in technical support make excellent use of the skills developed by life science PhDs...about novel developments in the fields of gene and cellular therapies.     Additional Resources on the Addgene...
  14. Light Sheet Fluorescence Microscopy

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    Blog Post
    ... Weber, M. Mickoleit, J. Huisken. (2014) Methods Cell Biol.123, 193-215. Pubmed. W. Spalteholz. (1914)...transparent are enabling microscopes to visualize the cellular architecture of whole tissues in 3D with unprecedented...
  15. Plasmids 101: Broad Host Range Plasmids

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    Blog Post
    ...ability to establish and maintain itself within host cells.  The plasmid has multiple ori that are functionally...eutrophus, Bartonella bacilliformis, Bordetella spp., Brucella spp., Caulobacter crescentus, Escherichia coli...
  16. Using Video to Share Your Science: We Share Science

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    Blog Post
    ... the 926 video abstracts identified. The journal Cell had the largest average view count per video abstract.../wesharescience.com/pin/7472 Article: http://www.cell.com/current-biology/abstract/S0960-9822(16)30873...
  17. CRISPR-mediated Plant Base Editors

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    Blog Post
    ...homology-directed repair (HDR) pathway which occurs in cells at low frequencies and relies on the efficient delivery...Later the resultant U-G pair is either repaired by cellular mismatch repair machinery making an original C-G...’ to ‘I’ (inosine), which is treated as ‘G’ by cellular polymerases. Subsequently, an original genomic... is converted to a G-C pair (Figure 1). As the cellular inosine excision repair is not as active as uracil...
  18. Gamma-Retroviral Vector Guide

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    Guide
    ...-activated cell sorting (FACS) is used to sort cells expressing GFP and later, sorted cells are expanded...actively dividing cell types, whereas gamma-retroviruses can only infect mitotically active cell types. This...Using Packaging Cell Lines Gamma-retroviral vectors can be packaged using helper-free cell lines (Figure...-retroviral packaging cell line developed by Garry Nolan at Stanford. These cell lines contain gag-pol...and rat cells), or an amphotropic envelope, Phoenix-AMPHO (for the infection of mammalian cells). Using...make stable cell lines, VSV-G is often put under an inducible promoter. Depending on the cell type, there... — T and B cell transduction Murine Leukemia Virus (MuLV) and HIV glycoprotein — CD4+ cell transduction...
  19. Plan Your Experiment

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    Guide
    ...difficult-to-transfect cells. You can direct expression to specific cell types by using cell-specific promoters...human embryonic kidney 293 (HEK293) cells. For more difficult cell types, you may need to look into other...are good choices for more difficult cell types like primary cells. For CRISPR delivery, lentiviral and...deliver to target cells through microinjection or electroporation. The target cells translate the mRNA...complexes directly into your target cells. In this case, your target cells are not transcribing DNA to mRNA...possible genotypes within the resulting cell population. Some cells may remain wild type due to either (1...modifications . Cell Population The first step of validation is determining the type of cell population you...
  20. Lentiviral Vector Guide

    Type
    Guide
    ...production cell line, typically human embryonic kidney 293T (HEK293T) cells. Standard HEK293T cells are sufficient...fluorescence-activated cell sorting (FACS) is used to sort cells expressing GFP and later expanded into a cell line. More...in a variety of cell types and models. Lentiviral vectors can target non-dividing cells, enable stable ...actively dividing cell types, whereas gamma-retroviruses can only infect mitotically active cell types. This...transfected into HEK293T cells using your preferred transfection method. The HEK293T cells will produce the viral...make stable cell lines, VSV-G is often put under an inducible promoter. Depending on the cell type, there...clinical tools. Stable Cell Lines Lentiviral vectors can be used to make stable cell lines due to their integration...
  21. Adeno-associated virus (AAV) Guide

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    Guide
    ...based on other human cell lines, such as HeLa and A549 cells, and even insect Sf9 cells , have also been ...able to infect cells and replicate autonomously. Human embryonic kidney 293T (HEK293T) cells are the most...HEK293T cells are then extracted and purified for their use as viral vectors to deliver genes to cells in ...persist in non-dividing cells for a period of years without damaging the host cell. Episomal stability allows...broad range of cell types in vivo. AAV-DJ has been optimized further for specific cell and tissue types...co-delivered to the host cells. The full-length transgene is later reconstructed within the cell via different mechanisms...main cell body, or soma, towards the synapse at the axons. Blood-brain barrier (BBB) Layer of cells that...
  22. Antibody Guide

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    Guide
    ... produced. Cells - Antibodies can also be produced in cell cultures using hybridomas, cell cultures created...created by fusing B cells with myeloma cells (immortalized B cells). The genetic reorganization that creates...identify and sort cells from a mixed population. Overview of application Collect cells from cell culture or ...specificity occurs in the B cell itself prior to antibody production; therefore, each B cell only produces one ... specific hybridoma cells into plasmids. Plasmids are then transfected into cells and induced to express...determines the isotype of the antibody. B cells, the immune cell responsible for producing antibodies, can...mature B cell can clone itself to enable higher production of a single antibody, but each B cell can only...
  23. Guide to Using Pooled Libraries

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    Guide
    ...200x the number of cells as plasmids in the TKO library. Using large numbers of cells minimizes the effects...selection Most cells die or do not pass selection (in the case of a reporter) Sort “winning” cells Sequence ...library Apply selection; most cells will survive Perform NGS on the surviving cells Compare NGS results between...identify those cells that do not survive the selection mechanism. You’ll infect two sets of cells and subject...libraries, plasmid DNA can be delivered directly to the cells of interest. With others, notably pooled lentiviral...subsequently used to deliver the plasmids to the cells of interest. In either case, next-generation sequencing...Pooled Library Screens In pooled library screens, cells are infected at a very low multiplicity of infection...
  24. Adenovirus Guide

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    Guide
    ...enters the host cell, and encode proteins necessary for viral DNA replication and host cell manipulation....expressed by the packaging cell line, normally the human embryonic kidney 293 (HEK293) cell line. There is a rare...transformed into AdEasier-1 cells (Addgene #16399) , which are BJ5183 E. coli cells containing pAdEasy. pAdEasy... construct flanked by ITRs. Cells from the packaging HEK293 or HER911 cell lines expressing E1 are transfected...HER911 cells throughout viral vector production. During experiments, GFP can be used to sort cells infected...transfected into HER911 E4+ cells for rAdV vector production, as HEK293 cells do not contain E4. Download...immune cells and antibody production that develops after exposure to an antigen. AdEasier-1 cells BJ5183...
  25. CRISPR Guide

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    Guide
    ...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: ...
  26. Molecular Biology Reference

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    Guide
    ... plasmid DNA is replicated upon cell division, and each daughter cell receives at least one copy of the...segregated to the resulting daughter cells. These daughter cells are called clones, since they contain..., which take up plasmids and amplify them during cell division. Because bacteria are easy to grow, divide...long-term, either as purified DNA or within bacterial cells that have been preserved as glycerol stocks. Function...including plants, worms, mice, and cultured human cells. Have diverse applications — Although plasmids were...can be specific to a certain species, tissue, or cell type. The strength of the promoter can control the...reference page . Selectable Marker Used to select for cells that have successfully taken up the plasmid and ...
  27. Chemogenetics Guide

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    Guide
    ...targeted to specific tissues, cell types or even subcellular regions of a neuron. Cell-specific expression of...actuators for specific cellular pathways, receptors, or ion channels targeted to specific cell populations (most...signaling, therefore allowing precise control over the cell population they are targeted to. Read this guide...coupled receptors (GPCRs) . The largest class of cell surface receptors, GPCRs are seven-pass transmembrane...Common promoters in chemogenetics plasmids Promoter Cell Specificity hSyn1, CaMKIIa Neurons GFAP Glia CD68... AAV-delivered constructs can be controlled with cell-type specific promoters. Table 4 lists some common...found in chemogenetic receptor constructs and the cell types in which they drive expression. Different ...
  28. Optogenetics Guide

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    Guide
    ...subpopulation of cells within the injection site of the viral vector, rather than in all cells. For example.... Molecular and cellular approaches for diversifying and extending optogenetics. Cell, 141 (1), 154–165...integrates optics and genetic engineering to manipulate cells (frequently neurons) and their governing biomolecular...wavelength, the pore opens, cations flow into the cell (yellow dots), and the neuron is activated. In the...actuators used for optical control of proteins and cells, including microbial opsins and optical switches...which conducts the flow of ions into or out of the cell. Scientists have identified a variety of naturally...adding trafficking signals to localize opsins to the cell membrane. Microbial opsins, such as those described...
Showing: 701 - 750 of 813 results