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We narrowed to 130 results for: Green Fluorescent Protein

Showing: 41 - 60 of 130 results

  1. In Living Color: The Skinny on In Vivo Imaging Tools

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    Blog Post
    ...than any fluorescent protein earlier described. “Until our proteins, there were lots of fluorescent proteins...least a couple of decades. Green is the classic color, but fluorescent proteins are available in a variety... If you start poking around on Addgene’s Fluorescent Protein Guide to In Vivo Imaging, you’ll pretty quickly...reason. We all know scientists have used fluorescent proteins to observe what’s happening inside cells...unimpeded. The challenge then was to develop fluorescent proteins that would fall within that near-infrared...Verkhusha said. “We developed near-infrared fluorescent proteins within this transparency window, so now,...light photoactivatable (PA) near-infrared fluorescent proteins (FPs), called PAiRFP1 and PAiRFP2, to the...

  2. 22 Hot Plasmid Technologies from 2014

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    Blog Post
    ...MitoTimer proteins are derived from the Timer protein - a mutant of the fluorescent protein dsRed that...newly synthesized (green) protein and organelles with older (yellow to orange) protein. Image courtesy of...three possible fluorescent proteins, chosen for minimal spectral overlap, minimal protein aggregation, ...groups to monitor protein and cell ageing, as the spectrum shift occurs during Timer protein life due to a...degradation in vitro and in vivo. Merged green and red channel fluorescence images of C2C12 cells stably expressing... BZ-9000 fluorescence microscope 8 hours post-pulse. The distinct differences of red-to-green fluorescence...1852-61. A quicker method for protein inactivation Your protein of interest does x, but it also participates...

  3. Illuminating Choices: A Guide to Selecting Fluorescent Dyes and Ligands

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    Blog Post
    ...b(right)est fluorescent proteinFluorescent Proteins 101: A History of Fluorescent Proteins  ...stability of fluorescence over time is crucial. For instance, the fluorescence of fluorescein isothiocyanate...principles of fluorescent dyes/ligands Figure 1: Example structures of fluorophores, fluorescent dyes,...dyes, and fluorescent ligands. Figure created with biorender.com. Fluorescence refers to the emission...attached to self-labeling proteins. Some common examples of these self-labeling proteins would be SNAP-tag® ...through fluorescent labeling. There are several advantages to using these self-labeling proteins over traditional... traditional fluorescent protein tags, such as higher specificity, increased versatility in probe attachment...

  4. The Michael Davidson Collection: One-Stop Shop for Fluorescent Proteins

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    Blog Post
    ...post from Joachim Goedhart: Fluorescent Proteins 101: GFP Fusion Proteins - Making the Right Connection...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 divided... tagged with mEmerald. Plasmids to monitor protein-protein interactions through multicolor labeling and... plasmid backbones spanning a rainbow of fluorescent proteins “It’s a great collection with over 300 backbones... impressively big deposit. “He has every fluorescent protein under the sun, from the standard oldies but...interest isn’t in the ORF collection, the fluorescent proteins are, which makes mixing and matching a relatively...

  5. Antibodies 101: Designing Your First Flow Panel

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    Blog Post
    ...inside of your cells. While proteins themselves can emit intrinsic fluorescence when excited with ultraviolet...amino acids found in all proteins, so you can't distinguish the different proteins from each other. To distinguish... A common method of labeling proteins is to fuse them with a fluorescent reporter, such as GFP or mCherry...through detecting the reporter's fluorescence. Another way to label proteins is through treating cells with...distinguish different target proteins in your flow analysis, you'll need to use fluorophores that attach...mCherry, through genetic modification. As your protein of interest will only occur in combination with that...cells. The combination of antibody-fluorophores, fluorescent reporters, and/or dye stains used in your flow...

  6. Luminescent Imaging with Nano-lanterns

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    Blog Post
    ...Learn about Photoactivatable Fluorescent Proteins Check Out Fluorescent Protein Timers Use Rosella to Study...Our Fluorescent Protein Resources Find FRET Plasmids Find Empty Backbones with Fluorescent Protein Tags... Since fluorescent proteins (FP) require external light activation, you can’t use fluorescence to monitor...generates much less signal than comparable fluorescent proteins. This weak emission hasn’t stopped some ...luciferase variant are used to excite the fused fluorescent protein. This technique is very similar to the widely...of low-copy number proteins, whereas such detection is difficult using fluorescent imaging due to autofluorescence... fluorescent proteins...

  7. Special Delivery: Fluorophore Targeting for FRET Studies

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    Blog Post
    ...Experiments Beware of Fluorescent Protein Aggregation Brush up on Your Fluorescent Protein Basics Resources...Browse Empty Plasmids to Fluorescent Protein Fusions Check out Our Fluorescent Protein Guide ...targeting a fluorescent donor to your protein is to hardwire the molecule directly into the protein’s peptide...incorporation of fluorescent probes into protein: hexahistidine-tag-mediated fluorescent labeling with (...during protein translation (Ermolenko et al., 2007). All that is required is that the proteins/nucleic...synthesized target protein molecules contain the donor and, more importantly there is no fluorescence background...resulting from nonspecific donor labeling. Fluorescent proteins (FPs) are the gold standard for genetically-encoded...

  8. Fluorescent Protein Guide: FRET

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    Collection
    ...Collections Fluorescent Proteins FRET Fluorescent Protein Guide: FRET More Fluorescent Protein Resources...for creating individual fluorescently tagged proteins to study protein-protein interactions and a series...not required to be fluorescent. A variety of organic dyes and fluorescent proteins have been developed...is often used to study (1) protein-protein interactions where each protein is separately fused to a donor...Encoding Fluorescent Proteins for FRET The following plasmids can be used to create a fluorescent fusion...fusion protein with your gene of interest and the listed fluorescent protein. Plasmid Color Expression Description...changes within a protein where the donor and acceptor are both fused to the same protein (also referred ...

  9. FlipGFP, a novel fluorescence protease reporter to study apoptosis

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    Blog Post
    ...Addgene blog Read our fluorescent proteins blog posts Download the fluorescent proteins 101 eBook Read our... Browse the fluorescent protein collection Find empty backbones for fluorescent protein fusions Browse...necessary for fluorescence. When these parts are separated from each other, the protein cannot fluoresce. When...caspase results in a change in fluorescence emission. FRET and fluorescence based reporters however have...normal antiparallel position and fluoresce. FlipCherry: Red fluorescence protease reporter To add to the... cleave proteins. This protease reporter based on sfCherry however did not initially fluoresce in HEK293... used in FlipGFP can be applied to other fluorescent proteins to create an array of multicolor reporters...

  10. Fluorescent Proteins 101: Luciferases

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    Blog Post
    ...approach can test protein-protein interactions using BRET. A luciferase and a fluorescent protein are each fused...characteristic light. However, if a protein interaction brings the fluorescent protein close enough, energy is transferred...common genetic reporters and alternatives to fluorescent proteins. Figure 1: Firefly, from Wikimedia...yellow-green light (Figure 2). Despite the title of this post, this reaction is not fluorescence! Chemiluminescence...be provided and are generally dimmer than fluorescent proteins. On the other hand, they don’t require an...Properties of luminescence versus fluorescence   Luminescence Fluorescence Source of light Chemical reaction...pairing the luciferase with a variety of fluorescent proteins that produce different colors or have other...

  11. Hot Plasmids - June 2020 - Barcoded CRISPR Library, Sparse Cell Labeling, Calcineurin Reporter, and DNA Staining Dye Alternative

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    Blog Post
    ... DNA bound by tTALE-FP with the fluorescent protein fluorescing green. Image from Shin et al., 2019. ...intercalating fluorescent dyes for DNA-protein interaction studies? Kyubong Jo's lab generated fluorescent protein...DNA. TALE proteins can bind specific DNA sequences which brings the attached fluorescent protein to the ...10.15698%2Fmic2020.04.713 Truncated TALE-fluorescent protein fusions as a DNA staining dye Article contributed...contributed by Leah Schwiesow Calcineurin is a protein phosphatase that responds to rising intracellular... in the cell, calcineurin dephosphorylates the protein CZI, which in turn binds to calcineurin-dependent...this vector is suitable for flow cytometry and fluorescence microscopy, they also show that this method ...

  12. Tag Your Favorite Yeast Genes with Ease

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    Blog Post
    ...direct fusion of fluorescent proteins (FPs) to a yeast gene of interest. These fluorescently tagged genes ... localization of individual proteins, but also investigate protein-protein interactions via FRET. Sidae... especially useful in protein complex studies where tagging of multiple protein products is desired, as... unique protein fusions. This collection is ideal for tandem affinity purification of protein complexes...advantage of this natural process to integrate protein tags into the genomes of S. cerevisiae and S. pombe.... A given insert will typically contain both a protein modification sequence and a selectable gene product...several ready-to-use, modular plasmids, combining fluorescent tags, epitope tags, protease sites, and selection...

  13. Using Ultrasound to Image Bacteria in vivo: Acoustic Reporter Genes

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    Blog Post
    ...vivo imaging with fluorescent proteins Browse luciferase plasmids Find fluorescent protein biosensors ...tools The luciferase reporter gene The green fluorescent protein reporter gene Resources on Addgene.org... reporters Limited Depth of Signal/Imaging: Fluorescent reporters are not as well suited for imaging ...context/spatial localization: In vivo imaging with fluorescent or bioluminescent reporters usually only detects...ARGs) are engineered gene clusters that encode proteins that form bacterial gas vesicles. These ~200nm...200nm long vesicles have hollow interiors and a protein shell that excludes water but is gas permeable. These...

  14. Plasmids 101: Gene, enhancer, and promoter trapping

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    Blog Post
    ...way. For example, if green fluorescent protein (GFP) was the reporter gene and green cells were observed...construct can be something phenotypic (such as a fluorescent protein or something species-specific) or a selectable...

  15. Fluorescent Proteins 101: Visualizing Subcellular Structures & Organelles

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    Blog Post
    ... of the many Fluorescent Proteins (FP) available for microscopy, by cloning your protein of interest into...into a vector encoding a fluorescent tag. Once expressed as a fluorescent protein fusion, it is possible...wild-type protein visualized with a fluorescently-tagged antibody. By employing “marker proteins” which ...your fluoresent protein fused to a signal sequence that traffics the fluorescent protein to your organelle...the function of a protein or its role in a disease, researchers often isolate proteins of interest and ...and transport of the protein within a living cell. Analyzing differences in protein localization and transport...mechanisms and protein function. Getting ready to determine the subcellular localization of your protein of interest...

  16. AAVs CREATed for Gene Delivery to the CNS and PNS

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    Blog Post
    ... constitutively express a red, green, or blue (RGB) fluorescent protein (4a-c). When high doses of this...are easy to trace and not lost in a jumble of fluorescent neurons. A simple but flawed approach to multi-color...trace individual cell’s axons, particularly the two green neurons near the arrows. When lower doses of virus...likely to be transduced by only one RGB AAV and red, green, or blue are the predominate colors expressed (figure...A cocktail of three AAV vectors expressing RGB proteins under the control of an inducer, i.e. tet-off ...morphology studies when used as part of a two part fluorescent tag-then-express system that allows for controlled...

  17. 10 Great Guest Posts We're Thankful For

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    Blog Post
    ...Monomer? The Top Three Ways Your Favorite Fluorescent Protein Oligomerizes in Cells GFP oligomerization...Research Campus reminds us that, although fluorescent proteins are incredibly useful, chemical fluorophores...different pH’s and some that are fused to fluorescent proteins. She also showed that R-bodies can rupture...Zika virus and, upon binding, produce reporter proteins. These toehold switches can be used to quickly... Read this post from Keith Pardee and Alexander Green (both formerly at the Wyss Institute) to learn how...University, describes R-bodies, “force generating protein machines that can extend and retract over many ...Casilio, a system that uses modular RNA binding proteins, dCas9, and a modified gRNA to direct a variety...

  18. Hot Plasmids May 2018 - Optogenetics, Decaffeination, Biosensors, and Fluorescent Protein Tools

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    Blog Post
    ...TagRFP-T fluorescence intensity due to interactions with photoactivatable fluorescent protein Dronpa. ...FLIM-FRET acceptors, ShadowG, a novel dark green fluorescent protein (GFP) with an absorption peak of 486 nm... dark yellow fluorescent protein (YFP) with an excitation peak of 519 nm. These proteins have improved...basic-helix-loop-helix) protein. After fusing the CRY2 and CIB1 domains to separate proteins of interest, a researcher... oligomerization when fused to a protein of interest. Fusion protein oligomerization happens within seconds... in TagRFP-T fluorescence intensity at different time points, the authors tracked protein activity while...phosphatase activity, second messenger activity, and protein-protein interactions. We’re excited to see how you ...

  19. Visualizing Translation at the Single Molecule Level

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    Blog Post
    ... the Brightest Fluorescent Protein Resources on Addgene.org Find Fluorescent Protein Plasmids Check ...components: a GFP protein that binds to the coding region of a reporter mRNA via a PP7 coat protein (NLS-PCP-GFP...NLS-PCP-GFP) an RFP protein that binds to the 3’ UTR of the reporter mRNA via an MS2 coat protein (NLS-MS2-RFP...which contains the tethering sites for the fluorescent proteins and is driven by an inducible promoter (... PP7 and MS2 coat protein binding sites to tether many copies of the FP-coat protein fusions to their ...RFP-labeled osk and Oskar protein were detected at the posterior pole. Oskar protein levels were negatively... to monitor local translation and determine if proteins are targeted to their destination co- or post-...

  20. Better Dyeing Through Chemistry & Small Molecule Fluorophores

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    Blog Post
    ...About Other Protein Tags Catch Up on Your Fluorescent Protein Background Which Fluorescent Protein Should ...long live chemistry! The discovery of green fluorescent protein (GFP) sparked a renaissance in biological...low fluorescence when free in solution, but high fluorescence upon binding to its cognate protein. In ...improvement of fluorescent proteins makes them the go-to choice for many (if not most) fluorescence microscopy...fusions on their own. Subsequent advances in fluorescent proteins have replicated many of the properties once...photon budgets are a widespread issue with fluorescent proteins—even the thriftiest cell biologist can feel...substantially brighter and more photostable than fluorescent proteins, providing a straightforward way to improve...
Showing: 41 - 60 of 130 results