Skip to main content
Addgene
Showing: 141 - 160 of 244 results
  1. PiggyBac-ing Through the Genome Editing Field

    Type
    Blog Post
    ...without leaving behind any accessory DNA sequences [2], [3]. Simply put, the piggyBac™ transposon containing...with a Footprint-Free™ genome edit.   Figure 2: Editing DNA using the piggyBac™ transposon selection...PMID: 26211958. PubMed Central PMCID: PMC4663986. 2.  A. M. Singh, V. V Adjan Steffey, T. Yeshi, and D.... Jonkers, M. van Lohuizen, A. Berns, and D. J. Adams, “A high-throughput splinkerette-PCR method for ...
  2. What's the Best Way to Elute and Store Your Plasmid DNA?

    Type
    Blog Post
    ...elution choices: TE, Tris buffer, or water Figure 2: Tris-EDTA, Tris, or water? The buffer you choose ...product, or chromosome. One of the main causes of degradation during plasmid DNA extraction and purification...protein endonuclease I encoded by the gene endA. Nowadays, the most common E. coli strains used for plasmid... extra steps like heat inactivation, protein degradation, and/or the use of chelating agents that can ...store your sample without having substantial degradation and which experiments you can use your plasmid...
  3. The Open Repository of CRISPR Screens: CRISPR Screen Data in One Place

    Type
    Blog Post
    ...might otherwise be hard to identify. Figure 2: Users can cross-interrogate screens from the literature...relevant metadata and the screen results. Screenshots updated 2024. Importantly, metadata for each...gene hits for each screen are also captured as metadata.   Screen results are reported as the original... diversify, the BioGRID ORCS resource will be adaptable to a wide variety of screen formats and contexts...
  4. Simple CRISPR-based Epigenetic Editing: dCas9-directed DNA Demethylation

    Type
    Blog Post
    ...Hrit et al. 2018, Kaas et al. 2013). Figure 2: CRISPR TET-based epigenetic editing. In reality, ...approach for targeted DNA demethylation. Cell Discov 2, 16009. https://doi.org/10.1038/celldisc.2016.9.  ...methylation, leaving the target CpG unmethylated. Adapted from Sapozhnikov and Szyf 2021.   Let me leave...
  5. Savvy Advocates Needed to Navigate a Scientific Enterprise in Flux

    Type
    Blog Post
    ...is funded have been well documented over the past 2 years (Alberts et al, PNAS 2014; Taylor, eLife, 2016...PMID: 24733905. Pubmed Central PMCID: PMC4000813. 2. Taylor, Justin Q., et al. “Avoiding a lost generation...Office Ben Corb - Director of Public Affairs at ASBMB Adam Fagen, PhD - Director, Early Career Scientist Segment...
  6. AAV Purification by Iodixanol Gradient Ultracentrifugation

    Type
    Protocol
    ...purification. Workflow Timeline Day 1: Purify Day 2: Buffer exchange and concentration Note: Both steps... 7.4 1X PBS-MK buffer 100X Pluronic-F68 NaCl MgCl 2 KCl Centrifugal filter units (MWCO 100 kDa) Reagent...PBS-MK buffer Dissolve 5.84 g of NaCl, 26.3 mg of MgCl 2 and 14.91 mg of KCl in 1× PBS in a final volume of...at 4 °C. 1X PBS-MK buffer Dissolve 26.3 mg of MgCl 2 , and 14.91 mg of KCl in 1× PBS in a final volume ...(C) (formulation buffer) Add 5 mL of Buffer B and 2 mL of 5 M NaCl to 43 mL PBS Procedure Preparation ...need more time, you can alternatively centrifuge for 2 h at 200,000 x g at 18 °C. Carefully take the QuickSeal...interface of the 60% and 40% gradient (see Figure 2) with an 18 ga needle. Place the first microcentrifuge...
  7. Plasmids 101: Using Transposons in the Lab

    Type
    Blog Post
    ...somewhere else (Fig. 2). Class II TEs have LTRs on both of their ends.    Figure 2: Overview of DNA...has four major components: 1) a CRISPR RNA (crRNA), 2) four proteins (TniQ, Cas8, Cas7, Cas6) that forms...closer look at three different transposon systems adapted for use as research tools: Sleeping beauty, PiggyBac...
  8. PEI Calculator for Planning AAV Packaging Transfections

    Type
    Blog Post
    ...pHelper: 1 RepCap OR 3 Transfer Plasmid : 5 pHelper: 2 RepCap Select what type of tissue culture dish you...to any experiment and can help prevent future headaches. To help you plan PEI transfections for AAV packaging...
  9. Kit Free RNA Extraction

    Type
    Protocol
    ...RNAzol®, QIAzol® (for Protocol Option #2) Water-saturated Phenol 2 M Sodium Acetate pH 4 Chloroform/Isoamyl....5% (wt/vol) N-laurosylsarcosine (Sarkosyl) 0.1 M 2-mercaptoethanol TRIzol® or similar product such as...recipe). If using TRIzol®, jump down to the Option #2 - TRIzol® Protocol section below. Homogenize or lyse...following sequentially to 1 mL of lysate: Add 0.1 mL of 2 M sodium acetate (pH 4.0), mix thoroughly by inversion...aliquots of it and storing those in -80°C. Option #2 - TRIzol® Protocol Homogenize or lyse tissues or cells...by hand for 10 seconds. Incubate the sample(s) for 2-3 minutes on ice and centrifuge for 15 minutes at ...Isopropanol or Lithium Chloride. This protocol was adapted from (Link opens in a new window) Chomczynski P...
  10. Deep Dive: Fixing and Permeabilizing for Immunofluorescence

    Type
    Blog Post
    ... of permeabilization and membrane integrity (Fig. 2). For example, saponin interacts with cholesterol ... at too high a concentration.      Figure 2: Examples of different permeabilization strategies...given state or point in time. You want to halt degradative processes while maintaining the structure of ...
  11. Custom CRISPR Screens & the Green Listed Software

    Type
    Blog Post
    ...six different research constellations: Doench/Root (2), Zhang (3), Wu (4), Yusa (5), Wang/Lander/Sabatini...Bioinformatics 33.7 (2016): 1099-1100. PubMed PMID: 28414855. 2. Doench, John G., et al. "Optimized sgRNA design to...Choose from different “Options”, including adding adapter sequences for cloning purposes.  Press run and... well as the suggested gRNA sequence including adapters. Output_UserInputParams: Contains all the information...subsequently cloned into your vector of choice using the adapter sequences that you have specified.   Run your...
  12. Getting to Know Expansion Microscopy

    Type
    Blog Post
    ...your sample (i.e. cultured cells or tissues).  Step 2: attach anchors to your sample that will link biomolecules...quite so much. Created with biorender.com Steps 2-4 are not found in standard IHC/ICC protocols and ...model systems, paired with SRM techniques, and adapted for detecting nucleic acids as well as proteins...
  13. Special Delivery: Fluorophore Targeting for FRET Studies

    Type
    Blog Post
    ...establishing the dynamic range of your FRET assay (Figure 2). These labeling methods are freely interchangeable...PMID: 20161833. PubMed Central PMCID: PMC2802762. 2. Dumas, Anaëlle, et al. "Designing logical codon reassignment–Expanding...developed by Roger Tsien and co-workers (Griffin, Adams, & Tsien, 1998), these dyes are now commercially...loops are best since these tags form beta-hairpins (Madani et al., 2009). Donor and acceptors: Putting it ...PMID: 19823671. 5. Griffin, B. Albert, Stephen R. Adams, and Roger Y. Tsien. "Specific covalent labeling...12125. Journal of the American Chemical Society. 7. Madani, Fatemeh, et al. "Hairpin structure of a biarsenical...
  14. Antibiotic Resistance: An Old Solution but a New Problem

    Type
    Blog Post
    ...diffusion test or Kirby-Bauer susceptibility test (Figure 2), and requires at least 18-24 hours to obtain results...." London: Wellcome Trust & HM Government (2016). 2. CDC Information Pages on Antibiotics 3. WHO Antimicrobial...bacteriology and drug resistance.  It seems as though, nowadays, we cannot make it a full month without a new,...
  15. Generating Mouse Models Using CRISPR/Cas9

    Type
    Blog Post
    ...posts: Part 1: Genetically Engineered Mice and Part 2: Breeding and Crossing Mice. My first CRISPR mouse...is less predictable. In our best case, we saw that 2 out of 3 mice carried a 5 kb insertion in the ROSA...you are working with RNAs, which are prone to degradation by the omnipresent RNase. You may want to declare...doi.org/10.1038/nbt.3026 Gurumurthy CB, Takahashi G, Wada K, Miura H, Sato M, Ohtsuka M (2016) GONAD: A Novel...
  16. Let There Be LITE Plasmids

    Type
    Blog Post
    ...First, the light-responsive molecules of cryptochrome 2 are the chromophores flavin-adenine dinucleotide and...dynamic organ,” Konermann explained. “It helps us adapt to influences in our environments. We are able to...
  17. Antibodies 101: Fc Effector Functions

    Type
    Blog Post
    ...affinity and specificity. Trends in Immunology, 29(2), 91–97. https://doi.org/10.1016/j.it.2007.11.004 ...antibody-dependent cellular phagocytosis (ADCP). Figure adapted from van Erp, et al., 2019.    Antibody-dependent...Song, WC. Complement and its role in innate and adaptive immune responses. Cell Res 20, 34–50 (2010). https...
  18. Plasmids 101: The protein expression toolbox

    Type
    Blog Post
    ... the transcriptional level.     Fig. 2 Tetracycline on/off promoters and modes of action ... Fig. 3 dTag mechanism of protein degradation. Adapted from Nabet et al. Check out Addgene's...with a degron tag can provide inducible protein degradation. These systems work by tagging the endogenously...mark the tag and whatever it is fused to for degradation. Since the tagged protein of interest is normally...off (SMASh), auxin-inducible degron (AID), and degradation tag (dTAG). These control systems function at...system for immediate and target-specific protein degradation. Nature Chemical Biology. May 2018. 14(5): 431...
  19. Why Add Sucrose? Improved Yields for Adeno-associated Virus Preparation

    Type
    Blog Post
    ...bioengineering 94.2 (2006): 322-329. PubMed PMID: 16528756. 2. Oh, Steve KW, et al. "Substantial overproduction ... effect is not specific to sucrose, but can be adapted to other sugars such as sorbitol. As sorbitol is...starters, we believe that this approach can be adapted by vector cores and laboratories alike as an easy...
Showing: 141 - 160 of 244 results