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  1. Delivery Methods for Generating iPSCs

    Type
    Blog Post
    Published
    April 17, 2018, 1:37 p.m.
    ...plasmid will get diluted faster when cells are actively dividing. The typical drawbacks of using transfection...of time than traditional plasmids due to lower activation of DNA-silencing mechanisms. While minicircles...integration Insertional mutagenesis, transgene reactivation, residual expression Lentivirus Integrating...silencing of transgenes is a concern as well, and reactivation of Myc or other oncogenes after differentiation.... This can complicate comparisons made between samples, i.e. transgene expression and hence the extent...Cre-lox lentiviral vectors: This approach is the same as using a standard lentiviral vector, but transient...
  2. Viral Vectors 101: Viruses as Biological Tools

    Type
    Blog Post
    Published
    March 21, 2023, 1:15 p.m.
    ...Central PMCID: PMC413431. 2. Bukrinsky MI, et al. “Active nuclear import of human immunodeficiency virus ...designed to make you sick…well, you feel it. But the same features that make these familiar viruses such a...a DNA/RNA cargo into their targets makes them attractive and tractable tools for genome engineering. Scientists... into an organism. This feature makes them an attractive tool for human subject delivery, as immunogenicity...
  3. Sharing is Caring: But How to Distribute Open Hardware?

    Type
    Blog Post
    Published
    Feb. 28, 2023, 2:15 p.m.
    ...now routine, open-source software projects that actively engage with the community are particularly successful...very difficult to adapt the device to one's own samples and limits the use of microscopy in open science...
  4. Viral Vectors 101: Gamma-Retroviral Packaging Systems

    Type
    Blog Post
    Published
    Aug. 6, 2024, 1:15 p.m.
    ...the provirus). Contains sequences necessary for activation of viral genomic RNA transcription. R; Repeat...While both lentiviruses and γ-retroviruses use the same gene products for packaging (Gag, Pol, and Env),...produce additional virus. Are γ-retroviruses self-inactivating (SIN)? They can be. Plasmids that encode SIN...
  5. CrispyCrunch: High-throughput Design and Analysis of CRISPR+HDR Experiments

    Type
    Blog Post
    Published
    Feb. 7, 2019, 2:16 p.m.
    ...HDR may inadvertently re-create a match for the active guide. With these constraints in mind, we implemented...scientists design and analyze batches of CRISPR samples. We invite you to jump in and try it out, or take... databases, including primer3, biopython, bwa, samtools, bowtie, UCSC genome browser, Ensembl, and others...currently Crispor and Crispresso, that adhere to the same principles listed here. It employs biological best...productivity in the Biohub. We hope it will do the same for you. Send us your questions or comments to gdingle...
  6. Story of a SynBio Startup: RevBio's Epiphany (or Lack Thereof)

    Type
    Blog Post
    Published
    June 5, 2014, 3:32 p.m.
    ...commission in the United States Air Force. She left active duty to pursue a degree in a synthetic biology ... synthetic biology lab Keira and I worked in the same lab for four years. It was a cutting-edge synthetic... on the detector plants, we expected to see that same anger. Instead, social media comments were more ...
  7. Antibodies 101: Conjugation

    Type
    Blog Post
    Published
    March 26, 2024, 1:15 p.m.
    ...each of these enzymes allow you to detect enzyme activity (and therefore your antibody) either through a... antibody will have been verified to perform the same as its unconjugated version, but if you find yourself...
  8. Mouse Modeling, Part 1: Genetically Engineered Mice

    Type
    Blog Post
    Published
    July 11, 2019, 1:26 p.m.
    ... include tetracycline or doxycycline mediated activation of Cre to either induce or repress Cre expression...repair is a random process, zygotes edited using the same nuclease may not result in genetically identical...
  9. Adenoviral Delivery of CRISPR/Cas9 Aims to Expand Genome Editing to Primary Cells

    Type
    Blog Post
    Published
    Dec. 10, 2020, 1 p.m.
    ... Doench CRISPR-Cas9: Tips for Optimizing sgRNA Activity by John Doench All CRISPR Posts  ...Beatty et al., 2012). These features make AdV an attractive candidate for in vivo delivery of advanced genome...achieved by isogenic AdVs encoding TALENs targeting the same chromosomal region. The CRISPR/Cas9-derived RNA-...in a second paper published in Nature Methods the same year that delivering RNA-guided nucleases or TALENs...
  10. Fluorescent Tagging of Endogenous Genes with SapTrap

    Type
    Blog Post
    Published
    Oct. 12, 2017, 2:26 p.m.
    ...Beyond simply monitoring protein localization and activity, CRISPR tagging systems can be modified to assay... 2-3). Since donor plasmids of the same type will produce the same unique SapI 5’ overhang, different ...about Fluorescent Protein Timers Check out Photoactivatable Fluorescent Proteins Use Rosella to Monitor...
  11. Your Lentiviral Plasmid FAQs Answered

    Type
    Blog Post
    Published
    April 23, 2014, 1:08 p.m.
    ...proteins that target specific tissues are areas of active study (for a review click here). Alternative envelopes...often: Q1: Are retroviruses and lentiviruses the same thing? Can I package lentivirus with retroviral ...both lentiviruses and gamma-retroviruses use the same genes for packaging (that's gag, pol, and env), ...initial infection. SIN is shorthand for self-inactivating, which is achieved by deleting a large portion...
  12. Viral Vectors 101: The Retroviral Lifecycle

    Type
    Blog Post
    Published
    July 27, 2023, 1:15 p.m.
    ...lines in which each cell has the capacity to be activated to produce infectious murine leukemia virus. Virology...instructions in the same producer cells as the virus. Because it is made at the same time as the other ... a retroviral particle, which is essentially the same for viruses and viral vectors. Key to the wild-type...
  13. Negative Can Be Positive: Open AAV Data with Addgene

    Type
    Blog Post
    Published
    Sept. 6, 2022, 1:15 p.m.
    ... one’s work. As a community, we must therefore actively work to remove the stigma around sharing negative...well for a neighboring cell type, even within the same brain region or nucleus. Just optimizing AAV expression...vectors, many from people trying to answer the exact same question I was: What AAV vector is best for my specific...wanted to see more negative data (Figure 2.) At the same time, when scientists who support open science, ...
  14. Negotiating Work and Life: How to Find the Joy

    Type
    Blog Post
    Published
    March 20, 2014, 3:04 p.m.
    ...one area at a time and try to say “no” to other activities. Take care of yourself. Take a vacation alone...whatever works for you, but most days go home at the same time. Use time management tools and tactics to plan...need to match up exactly when you fold them. The same with sheets – wash them and put them right back ...family by forming a social circle of people in the same situation. Go to church, join a club, meet the neighbors...
  15. Using AAV for Neuronal Tracing

    Type
    Blog Post
    Published
    Aug. 9, 2018, 1:04 p.m.
    ... reciprocal, forming a neuronal loop which is activated and strengthened during memory formation and memory...connections that are functionally relevant, i.e. activity-dependent neuronal tracing. Apart from mapping...al., 2008) AAV6 (Towne et al., 2010), AAV8, -9 (Masamizu et al., 2011); AAV5 (Aschauer et al., 2013). Anterograde...PMCID: PMC5529245. Choi, V.W., McCarty, D.M., and Samulski, R.J. (2005). AAV Hybrid Serotypes: Improved Vectors...PMC2895694. Hollis, E. R. 2nd, Kadoya, K., Hirsch, M., Samulski, R. J., and Tuszynski, M. H. (2008). Efficient...PMID: 25374356. PubMed Central PMCID: PMC4269290. Masamizu, Y., Okada, T., Kawasaki, K., Ishibashi, H., Yuasa...PubMed Central PMCID: PMC5572074. Salegio, E.A., Samaranch, L., Kells, A.P., Mittermeyer, G., San Sebastian...
  16. Adeno Associated Virus (AAV) for Cell and Gene Therapy

    Type
    Blog Post
    Published
    Nov. 7, 2017, 1:59 p.m.
    ...host chromosomes, further minimizing potential activation of innate immunity. AAV vectors are also capable... PubMed Central PMCID: PMC3152950. 3. Jacobson, Samuel G., et al. "Improvement and decline in vision with...
  17. Overcoming the Challenges of Lentiviral Production

    Type
    Blog Post
    Published
    Aug. 7, 2018, 12:31 p.m.
    ...system incorporates the Tet-off transcriptional activation system to drive high levels of expression of ... 10 cm2 dishes. While this option is attractive because the same procedure for a single 10 cm2 dish can...systems such that it no longer requires the viral transactivator, Tat. For more information on the different...
  18. The AAVantages of AAV in CRISPR Screens

    Type
    Blog Post
    Published
    Feb. 4, 2025, 2:15 p.m.
    ...wide variety of screens, including interference, activation, and knockout. Most CRISPR screens rely on ...expression of lentiviral vectors make them an attractive option. However, safety requirements and expression...vivo. The general process of these screens is the same: Deliver CRISPR library to cells of interest. Select...Low, S. H., François, A., Suárez-Amarán, L., & Samulski, R. J. (2022). AAV vectors: The Rubik’s cube of...
  19. Plasmids 101: Secondary Nanobody Toolbox

    Type
    Blog Post
    Published
    Feb. 27, 2018, 2:04 p.m.
    ...State University Use Nanobodies to Control Protein Activity Learn more about protein tags Read about E. coli...figures 4A-C). And since they have limited cross-reactivity between different IgG subclasses and different...primary antibody-nanobody mix can be added to your sample, thus eliminating the secondary antibody incubation...568, or Alexa Fluor 647 before application to the sample. Staining with this multi-color staining workflow...
Showing: 201 - 220 of 293 results