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Showing: 521 - 540 of 575 results
  1. RaPID Detection of RNA-protein Interactions

    Type
    Blog Post
    Published
    Aug. 16, 2018, 12:40 p.m.
    ...for RaPID is an RNA motif of interest. See figure 1 below for details on the key components of RaPID. ...novel RNA-protein interactions, Ramanathan et al. designed an RNA bait containing three well conserved but...
  2. Antibodies 101: ELISA (Enzyme-linked Immunosorbent Assay)

    Type
    Blog Post
    Published
    Aug. 24, 2021, 1:15 p.m.
    ... to the use of multiple antibodies. Figure 1: Overview of using Sandwich ELISA to quantitatively...ELISA is a modification of the sandwich ELISA as described here, the direct and indirect ELISA (more details...
  3. Uncovering Ancestral Bias in CRISPR Research

    Type
    Blog Post
    Published
    Nov. 29, 2022, 2:15 p.m.
    ... digging deeply into their data.     Fig. 1: Genomic fraction for each of five major ancestry ... reference?  The CRISPR guides used in the screens they analyzed were designed to have a perfect match...African descent have approximately 20% more single nucleotide polymorphisms (SNPs) that map to guides in the...accounted for in the CRISPR guides they used, leading to mismatches between the guides and the lines’ genomes...modify the CRISpick algorithm to prevent guides from being designed that target regions with high genomic...coming through an unexpected source: the CRISPR guides, short pieces of RNA that bind to a cell’s DNA,...x-axis) which SNPs map to thetargeting sequences of guides across 8 CRISPR libraries. Samples are divided ...
  4. Science communication: 9 Strategies to Get Your Foot in the Door

    Type
    Blog Post
    Published
    Sept. 27, 2017, 1:23 p.m.
    ...started:  Subscribe to Career Blog Posts from Addgene 1) Twitter – Get your voice out there Here’s one thing... Guardian, BBC Breakfast or the Londonist. BBC provides a peak into their day-to-day business with popular...Co-Ordinating Centre for Public Engagement (NCCPE) provides on-site courses in public engagement for institutions...
  5. Reaching out to China: Canton Nucleic Acids Forum (CNAF) 2015

    Type
    Blog Post
    Published
    Dec. 1, 2015, 3:30 p.m.
    ...viruses - 2 cas systems regulate at the DNA level and 1 at the RNA level. Udi Qimron from Tel Aviv University...plasmids, especially those of the CRISPR variety (see slides from my talk below). Largely organized by Dmitry...CRISPR regions of the prokaryotic genome. Then he desribed how P. furiosus has systems to defend against ...
  6. Illuminating Epigenetics with A FRET Based Biosensor

    Type
    Blog Post
    Published
    Nov. 19, 2015, 3:30 p.m.
    ...treatment and improving patients lives. References 1. Ong-Abdullah, Meilina, et al. "Loss of Karma transposon... of the DNA with a high frequency of C and G nucleotides). The conversion of cytosine to 5-methylcytosine..., which binds selectively to lysine-methylated peptides. This construct is in the middle of a FRET pair...
  7. Capturing a Moment with Marc Zimmer’s “The State of Science”

    Type
    Blog Post
    Published
    July 30, 2020, 1:15 p.m.
    ...in restraint. The very first subheading in Chapter 1 asks “What is science?” That’s a very big question... Zimmer provides several. In Part Three of the book, called simply “Old Science,” he describes the now...teaching and communicating science for over two decades, attempts to answer it in five paragraphs, with...recent resurgence of “Do-It-Yourself Science” described in Chapter 3, and of course the rapidly changing... science.”  The three chapters in this section describe the challenges of trusting science in a “fake ...changed significantly over the last decade. He describes the detection of gravitational waves--a story ...collaboration from scientists around the world. The paper describing the waves’ detection had over 1,000 authors. ...
  8. Viral Vectors 101: Chemogenetics

    Type
    Blog Post
    Published
    July 11, 2023, 1:15 p.m.
    ...impacts of neural circuits on behavior. Figure 1: An overview of the chemogenetics system. Why use...DREADDs DREADDs DREADDS, or designer receptors exclusively activated by designer drugs, are G protein-coupled...Relationship Studies for Designer Receptors Exclusively Activated by Designer Drugs. ACS Chemical Neuroscience...Chemogenetics has become a popular tool in the field as it provides a noninvasive method for manipulating cell activity...Roth's and Takafumi Minamimoto's lab called deschloroclozapine (DCZ) shows promise as a CNO alternative ... Gomez J, Ramirez M, Hu X, Galvan A, Basu J, Michaelides M, Sternson S (2019) Ultrapotent chemogenetics...Conditional expression and signaling of a specifically designed Gi-coupled receptor in transgenic mice. Nature...
  9. xCas9: Engineering a CRISPR Variant with PAM Flexibility

    Type
    Blog Post
    Published
    March 28, 2018, 6:52 p.m.
    ... NGT PAM GAA PAM GAT PAM xCas9 3.7 41 (1) 32 (1.6) 13 (2.1) 38 (4.5) 7.2 (5.2) ...insertion site, the corresponding gRNA might be undesirable due to potential off-target sites or low predicted..., resulting in lower overall genome frequency. Despite the progress we’ve made, there is still a need ...bacterial polymerase subunit ω. This construct is designed to activate transcription from the accessory plasmid... stringency and promoting survival of only the broadest-targeting variants. For the final round of evolution...spectinomycin resistance. xCas9 3.7 showed the broadest PAM range, recognizing NG, NNG, GAT, and CAA PAMs...scaffold. With an NGG PAM, xCas9 3.7-VPR constructs modestly outperformed SpCas9-VPR in activating transcription...
  10. Rabies and Neuronal Tracing

    Type
    Blog Post
    Published
    May 29, 2018, 1:51 p.m.
    ... questions of how the brain operates. References 1. Callaway EM. Transneuronal Circuit Tracing with Neurotropic...widely used in neuroscience. In this post, I’ll describe how rabies virus (RABV) can be used in the brain... by modifying the wild-type RABV genome, which encodes a single envelope protein called rabies glycoprotein... neurons integrated into the brain over time (Deshpande et al., 2013). The study found that at early time...Dec; 18(6): 617–623. Pubmed PMID 19349161.  2. Deshpande A, Bergami M, Ghanem A, Conzelmann KK, Lepier ...Pubmed PMID 26190977. 6. Osakada F, Callaway EM. Design and generation of recombinant rabies virus vectors...
  11. Polymerase Chain Reaction Overview and Applications

    Type
    Blog Post
    Published
    Aug. 10, 2021, 1:15 p.m.
    ...target DNA quickly and accurately.  Figure 1: Steps in PCR reaction   This process of denaturation...addition to Taq DNA polymerase, PCR requires free nucleotides (dNTPs), template DNA to amplify from and unique...polymerases require an existing strand of DNA to add nucleotides to.  Using these reagents and a series of heating...protocol page, protocol video and reference on how to design PCR primers.  Types of PCR Since the invention ...  Digital droplet PCR or ddPCR is a method that provides ultrasensitive and absolute nucleotide concentration...Polymerase Chain Reaction (PCR) Protocol: How to Design a primer  Molecular Biology Reference Molecular...
  12. Hot Plasmids and Viral Preps - May 2021

    Type
    Blog Post
    Published
    May 18, 2021, 1:15 p.m.
    ...(RBD) of the viral spike protein.   Figure 1. (A) SARS-CoV-2 RBD DMS Library generation and sequencing...library, each plasmid encodes the mutated spike protein and a barcode, and is designed so that the SARS-CoV....1074/jbc.RA120.01289     Novel protein cage provides simple enzyme protection in yeast bioproduction...enzymes in a reaction pathway, the MPyV system provides a simple, efficient method for protecting a single...- Ampl133 targets S. cerevisiae genes with 6-12 guides per gene where gRNA expression is induced by anhydrous...
  13. Addgene's Cancer Collection Pages Connect the Research Community

    Type
    Blog Post
    Published
    Sept. 6, 2016, 2:30 p.m.
    ... education and scientific writing.     References 1. Martz, Colin A., et al. "Systematic identification...die from cancer-related complications each year. Despite these grim statistics, new strategies for attacking...cancers, especially those of the pancreas and colon. Despite the prevalence of Ras mutations in a variety of... enabled researchers to begin discovering and designing molecules that are showing some promise in their...in the screenshot below). Currently, the page includes interactive maps for the Ras, mTor, and p53 pathways...
  14. CRISPR 101: Ribonucleoprotein (RNP) Delivery

    Type
    Blog Post
    Published
    Sept. 6, 2018, 12:02 p.m.
    ...genome engineering and microbiology.     References 1. Chen, Sean, et al. "Highly efficient mouse genome...transfecting cells with a plasmid, such as PX459, which encodes Cas9 and contains a site for inserting a custom...targeted approach using RNPs has recently been described in vitro, with the hope of eventually using this...expertise. Final thoughts The Cas9-gRNA RNP method provides scientists with an additional means to deliver...other CRISPR delivery techniques Find tips on gRNA design Resources on Addgene.org Browse all CRISPR plasmids...
  15. A Guide to Starting Your Own Journal Club

    Type
    Blog Post
    Published
    Feb. 6, 2020, 3 p.m.
    ...for your first journal club to begin! Figure 1: Discussing next-generation sequencing at the Addgene... on single papers could be more important.  Any slides, presentations, recordings, and other materials...those who were unable to attend. We capture the desktop and audio recordings of the meeting using teleconferencing... ensure that the journal club is useful for the widest audience, you should get feedback from those who...served. I hope that with some of the information described above you feel empowered to start your own journal...
  16. CRISPR 101: Targeting Non-Coding RNAs with CRISPR/Cas9

    Type
    Blog Post
    Published
    Nov. 14, 2024, 2:15 p.m.
    ...off-target effects (Zibitt et al. 2021).    Figure 1: A schematic illustration of CRISPR/Cas9-based approaches...non-coding RNAs (lncRNA). lncRNAs are over 200 nucleotides in length and lack an open reading frame, so ...transcription machinery of a target gene or DNA that codes for ncRNA. CRISPRa, on the other hand, recruits ...which targets RNA instead of DNA and selectively degrades RNA molecules. This system is often used to knock...
  17. Hot Plasmids and Viral Preps - January 2021

    Type
    Blog Post
    Published
    Jan. 5, 2021, 2:15 p.m.
    ...article, they investigated three Casɸ orthologs, Casɸ-1, Casɸ-2, and Casɸ-3. This system is notable for several... Parts. This library delivers 2 randomly paired guides per construct and allows a reduced scale in screens...
  18. 7 Simple Strategies to Resolve Conflicts with Difficult Supervisors

    Type
    Blog Post
    Published
    Jan. 21, 2015, 1:30 p.m.
    ...supervisor, even if he or she is a difficult person: 1) Understand your supervisor’s expectations Every ...familiar with the minute details of your work. Describe the problem by stating the facts and explain how...
Showing: 521 - 540 of 575 results