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Showing: 61 - 80 of 118 results
  1. Plasmid Tools for Microbiome Studies

    Type
    Blog Post
    Published
    June 27, 2019, 12:25 p.m.
    ...selectable marker and a desired genetic payload (ex: GFP). Thus, cells can be both sorted using FACS and isolated...allows translation of the reporter gene resulting in GFP signal. With the addition of standards, the assay...protein. The expression of this fusion is under control of the arabinose-inducible promoter. Cells are ...
  2. Don’t FRET: Bimolecular Fluorescence Complementation Makes Visualizing Protein-Protein Interactions Easy

    Type
    Blog Post
    Published
    Aug. 27, 2020, 1:15 p.m.
    ...right negative control is critical to the success of BiFC experiments. The ideal control is a mutated variant... work. You will also need to generate negative control constructs — more on this later. For more on constructing...check out our article: Fluorescent Proteins 101: GFP Fusion Proteins - Making the Right Connection. Cellular... measure the fluorescence of a single FP. Your control construct may generate a modest level of fluorescence...intensity of your BiFC constructs to your negative control to determine whether your PIPs actually do interact...has been compromised (Kodama and Hu, 2012). Such controls are necessary because split FPs can associate,...fragments themselves cannot be used as negative controls because their expression level, stability, and...
  3. Split-BioID: An Improved Method for Studying Protein-Protein Interactions

    Type
    Blog Post
    Published
    May 1, 2018, 1:57 p.m.
    ... No spatiotemporal control. Many PPI detection methods lack spatiotemporal control or an “on/off switch...partners if they are enriched relative to controls using Split-BioID-GFP and BioID run on six unrelated proteins... by creating Split-BioID, a spatiotemporally controllable version of the proximity-dependent biotinylation...method Enter Split-BioID, a spatiotemporally controllable version of the BioID protocol. The critical ...methods, including BioID, is its spatiotemporal controlled labeling of interacting proteins; nearby proteins...
  4. New Acoustic Reporter Genes: Ultrasound Imaging of Gene Expression

    Type
    Blog Post
    Published
    Jan. 24, 2023, 2:15 p.m.
    ...toxicity or burden relative to a fluorescent protein control. We also added the toxin-antitoxin stability cassette...P2A-linked accessory genes gvpNJKFGWV marked with Emerald GFP. These plasmids can be used directly in transient...gating for the top quartile (or higher) of BFP and GFP producing cells. After FACS, return the cells to ...Biomolecular Tools for Acoustic and Magnetic Imaging and Control of Cellular Function. Biochemistry 56, 5202–5209...
  5. Multiplexed Overexpression of Regulatory Factors (MORF) collection

    Type
    Blog Post
    Published
    March 30, 2023, 1:15 p.m.
    ...comes either with or without mCherry and GFP fluorescent controls. Alternatively, you can order individual...streamline identification. While the Zhang lab controlled their multiplicity of infection so that a single...disease depends on both genetic and expression control systems to mimic illness on a molecular level. ...
  6. Choosing Your Perfect Empty Backbone

    Type
    Blog Post
    Published
    Aug. 19, 2014, 3:39 p.m.
    ...function of Your Gene Of Interest (YGOI) in a controlled environment under various conditions. The first...great for overexpressing YGOI in an isolated, controlled environment. In most cases bacterial expression...using a reporter vector to tag YGOI with lacZ and/or GFP (e.g. pPD80_08) and following the expression pattern... allow you to visualize YGOI in vivo (try pcDNA3-EGFP). If you can get away with generating transiently...
  7. Plasmids 101: FLEx Vectors

    Type
    Blog Post
    Published
    April 28, 2016, 2:30 p.m.
    ... should contain a reporter DNA sequence (such as GFP) in the sense orientation, followed by coding sequence...transduced reporter gene. Generating a FLEx switch to control expression of an optogenetic reporter would ensure...et al. Nat Biotech 2003): In the presence of Cre, GFP expression is lost, allowing for rescued expression...
  8. Antibodies 101: Immunoprecipitation

    Type
    Blog Post
    Published
    Dec. 7, 2021, 2:15 p.m.
    ...protein. With this control set, you should see your target protein IP’d in the positive control sample but not...permanently altering the structure of the protein.  Controls As with any experiment, it is critical to include...include proper positive and negative controls for an IP. When possible, perform the IP in parallel with ...interest and a sample that does not. Common negative controls include knockout cell lines or tissues that do... not in the negative control, confirming that the capture antibody is functioning as expected. In order...perform parallel IPs with beads only and an isotype control antibody. Alternative applications Oftentimes, ...In cases such as this, an epitope such as c-Myc, GFP or V5 can be used to tag the protein of interest ...
  9. Antibodies 101: Introduction to Antibodies

    Type
    Blog Post
    Published
    Jan. 19, 2021, 2:15 p.m.
    ...blot showing GFP expression in cells that have been transfected with a plasmid encoding GFP. Actin, a common...detection. You’ll also want to use the appropriate controls for your experiment to account for potential non-specific...quantitatively if you also load the gel with appropriate controls for normalizing the protein concentration. To ... common internal control for Western blots, shows that a similar concentration of cell lysate was added...
  10. Nanoblades: Tiny CRISPR Ninjas for Genome Editing Difficult Cells

    Type
    Blog Post
    Published
    Sept. 26, 2019, 12:50 p.m.
    ...hiPSCs  EMX1  67% Mouse BM cells from GFP transgenic mouse  GFP  ~60-65% Human hepatocytes  Myd88  ~...editing in their livers, while non-injected and control gRNA injected mice had no detectable editing. Additionally...
  11. Multiple Plasmids at a Low Price: Kits from Addgene

    Type
    Blog Post
    Published
    Sept. 14, 2016, 2:30 p.m.
    ...various combinations of protein tags (His, Avi, and GFP) as well as protease sites to facilitate protein ...’ end of the leader sequence. Using a variety of GFP and RFP fusions as their test genes, the researchers...terminators of varying strengths centered within GFP/RFP bicistronic reporters characterized in Cambray... Living Bacteria Using an Orthogonal Ribosome-Controlled Fluorescent Reporter."ACS chemical biology 11.1...et al 2015). He has also constructed a library of eGFP-tagged human ORF clones to allow testing and comparison...be conveniently performed through the N-terminal eGFP tag carried on all constructs. The Cell-Free Protein...
  12. Fluorescent Proteins 101: Fluorescent Protein Timers

    Type
    Blog Post
    Published
    May 4, 2017, 2:30 p.m.
    ...placing FP timer DsRed-E5 under the control of Neurog3 (a gene controlling pancreatic differentiation) in ...synthesized or long-lived transcription factors control gross changes in gene expression as new body sections...Pratik, et al. "A programmable synthetic lineage-control network that differentiates human IPSCs into glucose-sensitive...Fluorescent Protein Aggregation Catch Up On Your GFP Basics Get Advice on Choosing Your Fluorescent Protein...
  13. Plasmids 101: The Promoter Region – Let's Go!

    Type
    Blog Post
    Published
    April 3, 2014, 8:05 p.m.
    ...target genes. The sequence of the promoter region controls the binding of the RNA polymerase and transcription... all the time while others are more carefully controlled. Regulated promoters might act only in certain... light. In the cell, promoters themselves are controlled by still other regulatory factors: enhancers,...induced. Requires T7 RNA polymerase, which is also controlled by lac operator. Can be induced by IPTG. Commonly...Vectors Read about Reporter Gene like Luciferase and GFP Resources on Addgene.org Find Plasmids for Your...
  14. Light Sheet Fluorescence Microscopy

    Type
    Blog Post
    Published
    July 16, 2015, 2:30 p.m.
    ...mouse brains expressing green fluorescent protein (GFP) (6).   The Dodt and Frank Bradke laboratories later...subpopulation of neurons are brightly labeled with GFP (e.g. Thy1-YFP-H mice).  However, we recently developed...use of viruses allows much better spatiotemporal control over labeling methods as compared to transgenic... nerve afferents labelled with a AAV8 expressing eGFP under the human ubiquitin C promoter. Anatomical...
  15. Plasmids 101: Repressible Promoters

    Type
    Blog Post
    Published
    Dec. 20, 2022, 2:15 p.m.
    ...from the Church lab uses this system to control expression of GFP.)  To turn this inducible system into ...Promoters control the binding of RNA polymerase and transcription factors. Since the promoter region ...promoters can be regulated via positive or negative control. Positive Repressible: An activator protein is ...system, Gossen and Bujard created the tetracycline-controlled transactivator (tTA). They fused TetR with the...interest to be expressed. These permit exquisite control of gene expression and tracing of gene expression...that sometimes it is necessary or desirable to control or look at multiple genes at the same time.  The... genetic analysis in Drosophila or for precise control over multiple genes in synthetic systems. Recent...
  16. pSiM24: Simplifying Plant Genetic Engineering

    Type
    Blog Post
    Published
    Sept. 29, 2015, 2:30 p.m.
    ...Arabidopsis, and corn. For both β-glucuronidase (GUS) and GFP reporters, as well as multiple transient and transgenic.... The kanamycin antibiotic resistance gene is controlled by a weaker constitutive Nos promoter, and it...
  17. Quick Guide to All Things Lentivirus

    Type
    Blog Post
    Published
    March 21, 2017, 2:30 p.m.
    ...containing the gene of interest (pTet-IRES-EGFP, pPRIME-Tet-GFP-FF3) and one with either tTA or rtTA (FUW-M2rtTA...your gene and the marker can be placed under the control of two different promoters. Both the single and...derivative such as Doxycycline (Dox), the Tet-controlled transactivator (tTA, also expressed by your transfer...viral titre to the number of cells transduced by a GFP encoded virus, and the reverse transcriptase activity...
  18. Viral Vectors 101: Virus Safety

    Type
    Blog Post
    Published
    June 22, 2023, 1:15 p.m.
    ...virus and its infectivity in check. Engineering controls, safety systems that are built into how something...functions, were designed for this purpose. One such control is dividing up the essential components of a virus... for a researcher to come into contact with than GFP. Similarly, if the viral vector carries an shRNA ...
  19. Tips for Screening with Yeast Two Hybrid Systems

    Type
    Blog Post
    Published
    Oct. 22, 2015, 2:30 p.m.
    ...in this case a reporter gene (e.g. luciferase or GFP), regardless of whether it interacts with a transcriptional...accounted for using appropriate replicates and controls (see Tips below), and by validating leads with...reporter gene activation. Including a prey-only control also provides a baseline level of reporter activation...that are known to bind serves as a good positive control to ensure that your setup works. The last thing...
  20. Antibodies 101: Affinity Tags

    Type
    Blog Post
    Published
    Sept. 19, 2023, 1 p.m.
    ...You’ve designed the perfect experiment – controls, conditions, and everything in between – now all you... (FLAG, Myc, etc.) and fluorescent protein tags (GFP, mCherry, etc.). Fluorescent tags are primarily used...
Showing: 61 - 80 of 118 results