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Showing: 201 - 220 of 543 results
  1. Hot Plasmids and Viral Preps - March 2021

    Type
    Blog Post
    Published
    March 23, 2021, 1:15 p.m.
    ...cloning, the Haynes lab’s Protocols.io protocol describes an elegant system that allows for the assembly...implications for the fusion protein effectivity), and a fluorescent protein tag for visualization (Fig. 1b). While...catalytically inactive dCas9) to modify chromatin. A fluorescent protein can still be included for visualization...quantify protein degradation the Ward lab used fluorescent proteins (FPs) fused to the AID* (minimal 44 ...
  2. PCR Applications for Copy Number Variation Assays

    Type
    Blog Post
    Published
    April 26, 2022, 1:15 p.m.
    ...Green or Taqman for signaling. Sybr Green is a fluorescent dye that works by binding to all double-stranded...while Taqman uses an intercalating dye, with a fluorescent probe and quencher to quantify specific amplicons...materials, and is not particularly sensitive. The fluorescent signal can be affected by AT-rich DNA and the... Sybr Green chemistry. Blue arrows represent fluorescent signaling in the presence of dsDNA. Image courtesy...
  3. Interview: Nicola Patron on Plant Synthetic Biology, MoClo, and More

    Type
    Blog Post
    Published
    June 12, 2014, 3:30 p.m.
    ...sequences for several different fluorescent proteins. Visualizing fluorescence can be challenging in plants...because of the auto-fluorescence of chlorophyll, so we looked at newer fluorescent proteins that get around...
  4. Drew Endy Introduces the Biobrick Public Agreement Plasmid Collection

    Type
    Blog Post
    Published
    Dec. 12, 2013, 3:35 p.m.
    ...made news in March with a publication in Science describing the development of “transcriptors,” transistor-like... and observed that we humans find it useful to describe and interact with the world using words like OR...The future of synthetic biology Addgene: You've described the pieces in these kits as the beginnings of ...regulation of gene expression including growth or fluorescence. There are a few examples of engineered RNA ...
  5. CRISPR 101: Targeting RNA with Cas13a (C2c2)

    Type
    Blog Post
    Published
    Sept. 21, 2017, 2:07 p.m.
    ... the sequence of interest and an inactivated fluorescent RNA reporter. If the target sequence is present...resulting in activation of the fluorophore. The fluorescent signal can be used as an indicator to determine... the collateral RNA cleavage response is well described in bacterial cells, LwaCas13a does not display...programmable RNA-binding protein, creating the fluorescent fusion protein dLwaCas13a-NF for in vivo RNA ...
  6. What's Your Organism? Expanding Genomic Tools via the NSF EDGE Program

    Type
    Blog Post
    Published
    May 2, 2019, 12:41 p.m.
    ...genotype to phenotype studies New organismal systems described at this meeting were extraordinarily diverse. ... manipulated by injected RNA and can express fluorescent proteins. This lab has created an automated tank...transgenic animals. They might be immortal. Manihot esculenta (Blake Meyers) Cassava is the fifth most grown... process is expensive. They are using a cool fluorescent indicator system to rapidly identify recombinants...
  7. Antibodies 101: Reading a Flow Plot

    Type
    Blog Post
    Published
    Feb. 6, 2024, 3:13 p.m.
    ...generally not true. Because of the variations in fluorescent signals, and how the machine reads/interprets...light that “scatters” past the cell, instead of fluorescent markers. There are various types of SSC and FSC...which is comprised of antibodies conjugated to fluorescent markers and/or cellular dyes and stains. These...anti-CD14 and anti-HLA-DR antibodies conjugated to fluorescent markers are used to identify monocytes (upper...
  8. New Acoustic Reporter Genes: Ultrasound Imaging of Gene Expression

    Type
    Blog Post
    Published
    Jan. 24, 2023, 2:15 p.m.
    ...are Acoustic Reporter Genes (ARGs)? Fluorescent and bioluminescent reporter genes are widely used to study...without signs of toxicity or burden relative to a fluorescent protein control. We also added the toxin-antitoxin...mammalian cells. Science 365, 1469–1475 (2019). Maresca, D. et al. Nonlinear ultrasound imaging of nanoscale...
  9. Hot Plasmids - November 2023

    Type
    Blog Post
    Published
    Nov. 14, 2023, 3:35 a.m.
    ...LOV-Turbo plasmids here! Next, Qin and Cheah et al. described TransitID, where two proximity labeling enzymes...slow-growing protein fiber in the cytoplasm and can be fluorescently labeled. Using lentiviral vectors to stably ...different promoters, specific time points appear as fluorescent bands in the fiber, resembling a “ticker tape... treated with a phorbol ester activator gave fluorescent signal in the ticker tape from cFos::GFP-iPAK4...
  10. Viral Production at Addgene

    Type
    Blog Post
    Published
    Oct. 24, 2023, 1:15 p.m.
    ...protocols, titering methods, and quality control are described below. AAV Production AAV distributed by Addgene...Cre-dependent GFP expression was detected with direct fluorescence. GFP was not detected in the absence of Cre....) are generated from lentiviral preparations (described above) that are subject to a concentration step...10.1089/hgtb.2013.131 Wang, Y., Bergelson, S., & Feschenko, M. (2018). Determination of Lentiviral Infectious...
  11. CRISPR-based Genome Editing Systems For Editing in E. coli

    Type
    Blog Post
    Published
    April 13, 2021, 1:15 p.m.
    ...CRISPR-associated transposases” or MUCICAT. Here, we’ll describe each of these CRISPR systems. The original pCas... that same year. Her research is focused on the escape mechanism of genome editing in microorganisms which...Yang J, Yang S (2015) Multigene Editing in the Escherichia coli Genome via the CRISPR-Cas9 System. Appl ...system for CRISPR-Cas9-assisted genome editing in Escherichia coli. Acta Biochimica et Biophysica Sinica. https...
  12. Rett Syndrome: A History of Research and Therapeutic Outlooks

    Type
    Blog Post
    Published
    Nov. 19, 2020, 2:15 p.m.
    ...If you’re new to Rett Syndrome, this blog post describes the history of Rett Syndrome research, the role...MECP2 in Rett Syndrome Rett Syndrome was first described in 1966 by Austrian physician, Andreas Rett, who... a portion of the MECP2 protein is necessary to rescue the neurological defects of Rett syndrome (Tillotson...Cobb SR, Bird A (2017) Radically truncated MeCP2 rescues Rett syndrome-like neurological defects. Nature...
  13. Plasmids 101: The Promoter Region – Let's Go!

    Type
    Blog Post
    Published
    April 3, 2014, 8:05 p.m.
    ...insert into RNA. In practice, the term "promoter" describes the combination of the promoter (RNA polymerase...   Primarily used for RNA     transcript     Description Expression Additional considerations CMV General...promoters     Promoter     Primarily used for Description Expression Additional considerations T7 in ...identify the right tissue-specific promoters as described by researchers at the NIH here.  Note: A. Max...
  14. When Fidelity Matters: A frank discussion about ligase fidelity

    Type
    Blog Post
    Published
    March 6, 2018, 1:49 p.m.
    ...Thermus thermophilus DNA ligase, a homolog of Escherichia coli DNA ligase." Journal of bacteriology 173.16...PMC1933048. 16. Cheng, Changming, et al. "Electrochemiluminescent assay for detection of extremely rare mutations... probe DNA-immobilized magnetic beads and chemiluminescence detection." Analytical Sciences 29.7 (2013..."Optimization of a ligase detection reaction-fluorescent microsphere assay for characterization of resistance-mediating...
  15. Tips for a 1st Time CRISPR User (by a 1st Time CRISPR User)

    Type
    Blog Post
    Published
    March 7, 2017, 3:30 p.m.
    ... I thought I could see GFP expression with a fluorescence microscope, but the GFP expression was so low...Plasmid #52962) was a gift from Feng Zhang and is described in Improved vectors and genome-wide libraries ...was a gift from John Doench & David Root and is described in Rational design of highly active sgRNAs for...were gifts from John Doench & David Root and are described in Optimized sgRNA design to maximize activity...
  16. CRISPR Guide Update

    Type
    Blog Post
    Published
    Oct. 10, 2024, 1:15 p.m.
    ...update, we have added new sections to share and describe some incredible new CRISPR technologies developed...much-anticipated prime editing section and additions describing CRISPR’s ability to make large genome edits using...transposases or the Cascade-Cas3 system. We also describe newly engineered Cas9s with more flexible requirements...
  17. Hot Plasmids Podcast Episode 2: New RFPs, AAVs, & More

    Type
    Blog Post
    Published
    Sept. 8, 2017, 7:52 p.m.
    ...Plasmids podcast series, you'll learn about new red fluorescent proteins, AAV tools for targeting the nervous...mCyRFP1 - a new, monomeric, and cyan-excitable red fluorescent protein. Listen to Our Segment on mCyRFP1 Hot...: mScarlet - a new, bright, and monmeric red fluorescent protein.  Listen to Our Segment on mScarlet ...
  18. Streaking for Single Colonies: The Streak Plate Challenge

    Type
    Blog Post
    Published
    March 2, 2021, 2:15 p.m.
    ...challenge. Chromoproteins are a subset of the fluorescent protein family that give off color in ambient...the Addgene blog Read our other blog posts on fluorescent proteins Check out educational resources on the... the blog Resources on Addgene.org Find fluorescent protein plasmids at Addgene Find chromoprotein plasmids...
  19. A Scientist's Guide to Ebola

    Type
    Blog Post
    Published
    Oct. 16, 2014, 3:01 p.m.
    ...Medicine have also recently described how the glycoprotein transforms itself to escape vesicles within host ...It’s pretty hard to escape news and fears of Ebola these days, as the infectious disease once limited...
  20. Download Science-Themed Zoom Backgrounds from Addgene

    Type
    Blog Post
    Published
    April 22, 2021, 1:15 p.m.
    ... interested in our fluorescent protein background. Download the orange fluorescent protein background....If not, you might want to check out Addgene’s Fluorescent Proteins blog topic to learn more about FRET ...
Showing: 201 - 220 of 543 results