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We narrowed to 478 results for: FLU

Showing: 31 - 60 of 478 results
  1. Fluorescent Proteins 101: Visualizing Subcellular Structures & Organelles

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    Blog Post
    ...interest into a vector encoding a fluorescent tag. Once expressed as a fluorescent protein fusion, it is possible...might use your fluoresent protein fused to a signal sequence that traffics the fluorescent protein to your...associated with fluorescent imaging such as bleed-through (the incorrect detection of one fluorescent signal in...detectable. Visualization can be achieved using fluorescent microscopy - even in living cells and whole organisms...organisms. You can take advantage of the many Fluorescent Proteins (FP) available for microscopy, by cloning... to the wild-type protein visualized with a fluorescently-tagged antibody. By employing “marker proteins...best, though not always possible, to use inert fluorescent protein fusions to visualize subcellular structures...
  2. Choosing the B(right)est Fluorescent Protein: Aggregation Tendency

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    Blog Post
    ...approach to selecting a bright fluorescent protein and a photostable fluorescent protein. In the third post.... In corals, the red fluorescent proteins form tetramers. In general, fluorescent proteins have a natural...established true monomeric fluorescent proteins. Concluding remarks Many fluorescent proteins are available... Addgene Blog Which Fluorescent Protein Should I Use? Choosing Your Fluorescent Proteins for Multicolor... with Fluorescent Tags Find Plasmids for Subcellular Localization Browse the entire Fluorescent Protein...will discuss how to select a non-aggregating fluorescent protein. In the jellyfish Aequorea victoria, ... is problematic in applications in which the fluorescent protein is used as an inert protein module. This...
  3. A Practical Approach to Choosing the B(right)est Fluorescent Protein

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    Blog Post
    ... properties of fluorescent proteins, how to do a head-to-head comparison of fluorescent proteins and how...decision on the best fluorescent protein for your application. Selecting the best fluorescent protein for a ...daunting task. Many fluorescent proteins are available and the number of fluorescent proteins is steadily...properties of fluorescent proteins on websites. To make the best choice, the fluorescent protein properties...Brightness Brightness refers to the fluorescence intensity of a fluorescent molecule. A higher brightness increases...the brightest fluorescent protein. Theoretical brightness Two key properties of fluorophores that determine...tables with fluorescent protein properties and provides a quick way to compare fluorescent proteins, e.g...
  4. Illuminating Choices: A Guide to Selecting Fluorescent Dyes and Ligands

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    Blog Post
    ...principles of fluorescent dyes/ligands Figure 1: Example structures of fluorophores, fluorescent dyes,...stability of fluorescence over time is crucial. For instance, the fluorescence of fluorescein isothiocyanate...the b(right)est fluorescent protein Fluorescent Proteins 101: A History of Fluorescent Proteins ...dyes, and fluorescent ligands. Figure created with BioRender.com. Fluorescence refers to the emission...spectrum and emission spectrum. Fluorescent dyes utilize these fluorophores by combining them with a molecular...interest. Fluorescence microscopy takes advantage of the characteristics of these fluorophores to enable...can utilize these dyes. The most-used fluorescent dye is fluorescein isothiocyanate (FITC), with excitation...
  5. FlipGFP, a novel fluorescence protease reporter to study apoptosis

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    Blog Post
    ...position and fluoresce. FlipCherry: Red fluorescence protease reporter To add to the fluorogenic reporter...caspase results in a change in fluorescence emission. FRET and fluorescence based reporters however have...necessary for fluorescence. When these parts are separated from each other, the protein cannot fluoresce. When...Addgene blog Read our fluorescent proteins blog posts Download the fluorescent proteins 101 eBook Read....org Browse the fluorescent protein collection Find empty backbones for fluorescent protein fusions Browse...vivo, scientists have used genetically encoded fluorescent executioner caspase reporters. Several apoptosis...difficult to detect, and thus quantify, due to small fluorescence changes of the donor and acceptor after proteolytic...
  6. Bright Monomeric Fluorescent Proteins: mNeonGreen, mTFP1, and mWasabi

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    Blog Post
    ...deposit plasmids containing the fluorescent protein mNeonGreen. This fluorescent protein joins mTFP1 and mWasabi...yellow-green fluorescent protein mNeonGreen is a yellow-green fluorescent protein that was derived from ...yellow fluorescent protein wavelengths, it can be imaged either with standard green fluorescent protein... other fluorescent proteins. Find mNeonGreen plasmids here! mTFP1: a monomeric teal fluorescent protein...proteins is that they are monomeric fluorescent proteins. Fluorescent proteins that oligomerize often affect...Clavularia cyan fluorescent protein: structural characterization and applications in fluorescence imaging." ...blog Read our fluorescent protein blog posts Find blog posts about choosing fluorescent proteins for your...
  7. Choosing Your Fluorescent Proteins for Multi-Color Imaging

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    Blog Post
    ...follow multiple fluorescently tagged species simultaneously. To do so with fluorescent protein labels ...in distinct fluorescent channels on the microscope. With the proliferation of fluorescent proteins in ...choice of fluorescent proteins requires some thought. The first step in choosing fluorescent proteins...is to be aware of what fluorescent proteins are available. With new fluorescent proteins being published...latest fluorescent proteins, I maintain an interactive graph and table of the best fluorescent proteins...available. Choosing compatible fluorescent proteins To choose a set of fluorescent proteins to be imaged together...crosstalk between the two fluorescent proteins. If you must image fluorescent proteins whose spectra overlap...
  8. Tagging Optogenetics and Chemogenetics Receptors: Fluorescent Proteins and Other Options

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    Blog Post
    ...that non-fluorescent tags may be advantageous over fluorescent proteins when the fluorescence is not essential...detection. Fluorescent proteins are most widely used tags because they emit endogenous fluorescence that allow...appropriate fluorescent illumination in in vivo, ex vivo, or post-mortem experiments. Fluorescent proteins...interest. Furthermore, fluorophore variants (for example green and red fluorescent proteins) allow simultaneous..., we found that fluorescent proteins might not always be the best option. Fluorescent proteins can interfere...techniques cannot be directly visualized with fluorescence or immunohistochemistry methods, these proteins...function Under some circumstances, the fused fluorescent proteins can be a roadblock, rather than an aid...
  9. Fluorescent Proteins 101: When GFP lets you down

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    Blog Post
    ... a synthetic, fluorescent analogue have been engineered (Thorn, 2017). These fluorescent analogues are...of the available green fluorescent proteins emit light. The pKa of fluorescent proteins can be accurately...locations (Chen et al., 2013). GFP fluorescence overlaps with autofluorescence The cyan light that is used to...the use of bright red fluorescent proteins (e.g. mScarlet) or infrared fluorescent proteins (Chernov et...Introduction to GFP Read our Fluorescent Proteins Blog Posts Download the Fluorescent Proteins 101 eBook Resources....org Browse the Fluorescent Protein Collection Find empty backbones for fluorescent protein fusions Browse...popular, most widely used genetically encoded fluorescent probe. Several factors contribute to the popularity...
  10. Avoiding the Dark Side of Fluorescent Protein Fusions with mOX FPs

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    Blog Post
    ... Posts on Fluorescent Proteins Browse Our Fluorescent Protein Pages Find the mOX Fluorescent Proteins ...protein non-fluorescent. Unfortunately, accumulated misfolded and nonfunctional (dark) fluorescent proteins...applicable to many microscopy experiments with fluorescent proteins (FPs) localized to compartments other...that they have missed the impact of dark, non-fluorescent, and misfolded FP-fusions on quantitative imaging... and cell physiology in general. Pitfalls of Fluorescent Protein Fusions Observing a bright signal for... fail to correctly fold? Misfolded FPs do not fluoresce. A dark population is not readily apparent and...investigate the localization and dynamics of fluorescent protein fusions in live cells in real time. Previously...
  11. The Michael Davidson Collection: One-Stop Shop for Fluorescent Proteins

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    Blog Post
    ...Updated May 10, 2021. In the world of fluorescent proteins and their use for imaging cell biology, Michael...searchable format on Addgene’s Michael Davidson Fluorescent Protein Collection webpage. These plasmids are... Over 300 empty backbones with 100+ distinct fluorophores to choose from in the green, red, yellow, cyan... 300 plasmid backbones spanning a rainbow of fluorescent proteins “It’s a great collection with over 300... the impressively big deposit. “He has every fluorescent protein under the sun, from the standard oldies...apple, papaya, and tomato) and the photoactivatable fluors (e.g. Phamret and Dendra). It’s just such a great...of interest isn’t in the ORF collection, the fluorescent proteins are, which makes mixing and matching...
  12. Fluorescent Proteins 101: GFP Fusion Proteins - Making the Right Connection

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    Blog Post
    ...oligomerization of fluorescent proteins is a concern. The propensity of fluorescent proteins to oligomerize...of the fluorescent protein are relatively close together (figure 1). Where should the fluorescent protein...length, the specific fluorescent protein variant, and where to add the fluorescent tag. These choices will...dynamic range of fluorescent indicators for Ca2+ by circularly permuted yellow fluorescent proteins." Proceedings...Addgene blog Read our fluorescent proteins blog posts Download the fluorescent proteins 101 eBook Read....org Browse the fluorescent protein collection Find empty backbones for fluorescent protein fusions Browse...Amsterdam). Tagging a protein of interest with a fluorescent protein to study its function is one of the most...
  13. Multicolor Animals: Using Fluorescent Proteins to Understand Single Cell Behavior

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    ...photostable fluorophores mOrange2, EGFP, and mKate2 (red) to solve the problematically low fluorescent intensity...default, they are not fluorescent. Instead, they incorporate a truncated, non-fluorescent form of YFP as the...is necessary to excise the non-fluorescent YFP and activate fluorescence of the downstream OFP, GFP, or...combination of all of the fluorescent proteins from the injected construct. The fluorescent protein expressed ...upstream of the fluorescent protein genes, Cre recombination is required before fluorescence can occur. Cre... be labeled by synthetic fluorophores, which are more stable than fluorescent proteins. For more details...Visit our fluorescent proteins topic page Resources on Addgene.org Browse Addgene’s fluorescent protein...
  14. Fluorescent Protein Guide

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    ... Plasmid Collections Fluorescent Protein Guide Fluorescent Proteins: Plasmids and Resources...applications of fluorescent proteins and to find plasmids for your next experiment. Browse Fluorescent Protein...interest by fusing it to a fluorescent protein. Michael Davidson Fluorescent Protein Collection Browse ...Learn More and Explore Addgene Blog: Fluorescent Proteins Fluorescent Protein Plasmid Kits Allen Institute...this guide to learn about the applications of fluorescent proteins and to find the plasmids that are available...Resources Addgene's repository contains thousands of fluorescent protein plasmids. Use this guide to learn more... collection of genes and markers tagged with fluorescent proteins as well as hundreds of empty backbones...
  15. Fluorescent Proteins: FRET

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    ... Plasmid Collections Fluorescent Proteins FRET Fluorescent Proteins: FRET FRET Pairs FRET Calibration...Alternatively, the fluorescence lifetime (the time between excitation of the fluorophore and emission of ...position and orientation of the fluorophores through linkers, fluorescent protein expression level and maturation...Calibration Standards Additional Resources Förster (or Fluorescence) Resonance Energy Transfer (FRET) is a process...non-radiatively transferred from an excited donor fluorophore to an acceptor. Because this process is extremely...extremely sensitive to the distance between the fluorophores at the single-nanometer scale, scientists can...binding or conformational changes. Organic dyes, fluorescent proteins, and other molecules have been demonstrated...
  16. Hot Plasmids May 2018 - Optogenetics, Decaffeination, Biosensors, and Fluorescent Protein Tools

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    ...Their Fluorescence fLuctuation INcrease by Contact (FLINC)-based biosensors measure fluctuations of TagRFP-T...TagRFP-T fluorescence intensity due to interactions with photoactivatable fluorescent protein Dronpa. ...derivatives encoding alternative promoters and/or fluorescent tags are available at Addgene. Shemesh OA, ...proximity. By monitoring changes in TagRFP-T fluorescence intensity at different time points, the authors... Methods. 2017. PubMed PMID: 28288122. New fluorescent proteins for use as FLIM-FRET acceptors  Listen...-FRET acceptors, ShadowG, a novel dark green fluorescent protein (GFP) with an absorption peak of 486 ...486 nm and ShadowY, a novel dark yellow fluorescent protein (YFP) with an excitation peak of 519 nm. These...
  17. Don’t FRET: Bimolecular Fluorescence Complementation Makes Visualizing Protein-Protein Interactions Easy

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    ...PPIs): Bimolecular Fluorescence Complementation (BiFC). What is bimolecular fluorescence complementation?...BiFC only uses a single fluorescent protein to visualize PPIs. This fluorescent protein (FP) is split into...complete FP results in a fluorescent signal that can be detected by fluorescence microscopy. Figure..., resulting in a fluorescent readout.   Applications for bimolecular fluorescence complementation BiFC...non-radiative transfer for energy between neighboring fluorophores, FRET can be used to detect the inter- and intramolecular...complementation? Bimolecular fluorescence complementation is a method for detecting protein-protein interactions that...that uses split fluorescent proteins tethered to potential protein interaction partners. Unlike FRET, BiFC...
  18. Fluorescent Protein Guide: Biosensors

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    ... Plasmid Collections Fluorescent Proteins Fluorescent Biosensors Fluorescent Proteins: Biosensors Metal...levels and flux Nanosensor detection of an immunoregulatory tryptophan influx/kynurenine efflux cycle. PLoS...Measure autophagic flux by pH-sensitive fluorescence (pMRX-IP-GFP-LC3-RFP) An Autophagic Flux Probe that Releases...Additional Resources Fluorescent biosensors are proteins designed so that their fluorescent properties are ...signal of a circularly permuted fluorescent protein (cpFP) or fluorescence resonance energy transfer (FRET...orange-emitting fluorescent proteins. Nat Commun. 2017 Sep 5;8(1):431. Wolf Frommer Calcium Orange fluorescent calcium...raitometric (KIRIN1) fluorescence indicators of K + Genetically encoded fluorescent indicators for imaging...
  19. When is a Monomer not a Monomer? The Top Three Ways Your Favorite Fluorescent Protein Oligomerizes in Cells

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    ...artifacts. If you're using green fluorescent protein or Enhanced Green Fluorescent Protein (GFP/EGFP) for a transcriptional... means that your POI fused to GFP or another fluorescent protein (FP) could be forming dimers in cells... Figure 1: Each problem with dimerizing fluorescent proteins is illustrated. 1) Membrane proteins... by FP dimerization.   1. Transmembrane fluorescent protein fusions Transmembrane proteins, i.e. ...energy to the second FP, often decreasing the fluorescent signal from the first FP and increasing the signal...These simple strategies can help you make better fluorescent fusion protein reporters for your studies and...PubMed PMID: 11988576. 3. Matz, M.V., et al., Fluorescent proteins from nonbioluminescent Anthozoa species...
  20. Hot Plasmids September 2018 - Optogenetics, RNA Localization, Fluorescent Protein, and Base-editing Tools

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    ... in increased fluorescent signal. Prior to the development of these probes, fluorophore binding aptamers...cobalamin-binding riboswitches that bind to cobalamin-fused fluorescent dyes; binding of the cobalamin fusion to the ...aptamers and MS2-binding fluorescent proteins were the state of the art in RNA imaging in vivo. These new ...aptamers or MS2 tags using the same number of fluorophores. You can find plasmids containing the cobalamin...are always on the lookout for better, brighter fluorescent proteins (FP) with improved tissue penetrance...30220597. ACE system: A versatile in vivo fluorescent reporter for rapid quantification of base-editing...deposited a reporter plasmid that allows for rapid fluorescence-based quantification of base editors that utilize...
  21. Fluorescent Protein Travel Awards - Protein Variants, a Serotonin Sensor, and an Artificial Leaf Replica System

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    ... reduced eGFP fluorescence. Cells expressing the library are then sorted by fluorescence-activated cell... to use a suite of fluorescent reporters. Bacteria containing unstable fluorescent proteins under the ...inoculation, no more fluorescent proteins are made. As the bacterial replicate, fluorescent proteins will be...Davidson and Roger Tsien played enormous roles in fluorescent protein development by openly sharing their resources... a conference of their choice to share their fluorescent protein based research. This year, we put out...were excited to see the many creative uses of fluorescent proteins. We’re happy to announce the three winners...levels of abundance, the eGFP will be stable and fluoresce. But if the variant is unstable, it will be degraded...
  22. Michael Davidson Fluorescent Protein Collection

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    ...Plasmid Collections Fluorescent Proteins Michael Davidson Fluorescent Protein Collection Michael Davidson...Find fluorescent protein fusion constructs and cloning backbones from the Michael Davidson Lab. Plasmid...Davidson Fluorescent Protein Collection Empty Backbones Blue Cyan Green mEmerald Yellow Orange Red Photoactivatable... collection of ORFs tagged with a variety of fluorescent proteins. The majority of the ORFs are of mammalian... corresponding empty backbone with different fluorescent tags for you to create fusion proteins with your...photoswitchable, photoconvertible, and photoactivatable fluorescent proteins. Plasmid Description Industry Return...
  23. Fluorescent Protein Guide: In Vivo Imaging

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    ... Plasmid Collections Fluorescent Proteins In Vivo Imaging Fluorescent Proteins...pPAiRFP2-N1 Additional Resources Fluorescent Proteins: Empty Backbones Fluorescent Proteins: Subcellular Localization...photoactivatable fluorescent proteins. Plasmid...Near-Infrared Photoactivatable Additional Resources Fluorescence microscopy is a powerful tool to study proteins...presents unique challenges. Genetically-encoded fluorescent proteins most suitable for stable imaging in ...undesirable background signals. Many near-infrared fluorescent proteins are derived from bacterial phytochrome...phytochrome photoreceptors. Spectrally distinct fluorescent iRFP variants have been shown to have high brightness...
  24. Fluorescent Protein Guide: Subcellular Localization

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    ... Plasmid Collections Fluorescent Proteins Subcellular Localization Fluorescent Proteins: Subcellular ...protein to a red fluorescent protein like mCherry (find plasmids for cloning in our Fluorescent Proteins Empty...constructs or different fluorescent protein markers? Check out the Michael Davidson Fluorescent Protein Collection...Collection Michael Davidson Fluorescent Protein Collection Addgene Blog: Fluorescent Proteins Content last ...Find plasmids encoding fluorescent fusion proteins with known subcellular localization patterns for colocalization...of interest. One of the most common is to use fluorescence microscopy to compare its localization with ...Addgene has assembled a collection of popular fluorescent fusion proteins that are targeted to various ...
  25. Fluorescent Protein Guide: Empty Backbones

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    ...Return to top Fluorescent Timers Fluorescent protein variants that change their fluorescence from the blue... Plasmid Collections Fluorescent Proteins Empty Backbones Fluorescent Proteins: Empty Backbones ...Botman-Teusink Yeast Fluorescent Protein Collection Plasmid Kits Hamdoun Lab Fluorescent Protein Fusion Construct...Addgene Blog: Which Fluorescent Protein Should I Use? Addgene Blog: Choosing Your Fluorescent Proteins for Multi-Color...Explore empty plasmid backbones with different fluorescent tags to create fusion proteins with your gene...Resources The following tables list many popular fluorescent proteins and empty backbones for expression and...experiment. Tables are organized by color of the fluorescent protein. The content for this page was originally...
  26. Hot Plasmids - March 2019 - Anti-CRISPR, 2in1 Cloning, Fluorescent Voltage Indicators, and Photoswitchable Proteins

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    ...minutes of inactivating the CASANOVA complex, fluorescent CRISPR complexes were observed binding telomeric...30377362. Studying neuronal activity using the fluorescent voltage indicator Archon Article contributed ...team identified Archon1, a novel opsin-based fluorescent voltage indicator. Archon1 can embed itself into...Heckler et al., 2015) or ratiometric Bimolecular Fluorescence Complementation (rBiFC, Grefen and Blatt, 2012...adapted cells expressing these plasmids, tgRFP fluorescence localizes to the mitochondria, because cPYP ...
  27. Immunocytochemistry

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    Protocol
    ...primary antibody against a target protein and a fluorescent secondary antibody....primary antibody against a target protein and a fluorescent secondary antibody. This protocol outlines the... tips and pipettes Rocking platform Tweezers Fluorescent microscope 0.5–10 µL single channel pipette 2...500 µL PBS on a rocking platform. Dilute the fluorescently-labeled secondary antibody to the desired concentration...generally ranges from 1-10 µg/mL. Add 500 µL fluorescently-labeled secondary antibody to the wells and ...cell labeling on a microscope with appropriate fluorescent filters. Tips and Troubleshooting The optimal...
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