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Showing: 1 - 7 of 7 results
  1. Which Fluorescent Protein Should I Use?

    Type
    Blog Post
    Published
    May 20, 2014, 2:06 p.m.
    ...affected by the temperature. For instance, enhanced GFP (EGFP) was optimized for 37°C, and is therefore...wavelenght range).  By mutating GFP, the variants blue FP (BFP), cyan FP (CFP), and yellow FP (YFP) were... of GFP, it's variants, and their relevant mutations, check out Marcy's post from last week on GFP. Additionally...detected by longer-wavelength filters (e.g. GFP also emits yellow light). Note that some combinations ... a few hours. For example, superfolder GFP (sfGFP) and mNeonGFP can fold in <10min at 37°C, mCherry takes...are PA-GFP, Dendra2, and the mEOS proteins. Some proteins are reversibly switchable (e.g. rsEGFP, Dreiklang... the discovery of the Green Fluorescent Protein (GFP), a protein from the jellyfish Aequorea Victoria....
  2. Technologies Enabled by NanoLuc® Luciferase

    Type
    Blog Post
    Published
    Feb. 8, 2018, 12:17 p.m.
    ...issues as traditional luciferases emit at near optimal wavelengths (Fluc emits at 610 nm) and do not require... co-imaged with GFP using the same wavelength for excitation. The result was the cyan-excitable orange...improved creations Enhanced Nano-Lanterns. These great imaging tools generate cyan, yellow, green, orange...bright cyan-excitable orange fluorescent protein facilitates dual-emission microscopy and enhances bioluminescence...resonance energy transfer (BRET). The fluor then emits light at a tissue-penetrating wavelength above 600... imaging probes. One consists of NLuc fused to enhanced green fluorescent protein (GpNluc) and the other... is available through Addgene (Cat. # 74279). Enhanced Nano-Lanterns  Suzuki, K., et al. (5) imaging ...
  3. Fluorescent Proteins 101: Photoactivatable Fluorescent Proteins

    Type
    Blog Post
    Published
    April 25, 2017, 2:30 p.m.
    ...reported was PA-GFP. PA-GFP was derived from Jellyfish (Aequorea victoria) GFP (wtGFP) by mutating Threonine...mutation in PA-GFP generates a chromophore population that is more neutral, causing PA-GFP to display almost...) PA-GFP Monomer UV-Violet Dark/ Green ~200 Medium 504/ 517 PS-CFP2 Monomer UV-Violet Cyan/ Green ...example, by engineering PA-GFP tagged to a mitochondrial matrix protein (mito-PAGFP) the Youle Lab was able...the neutral to the anionic form, which allows PA-GFP to exhibit up to a 100-fold increase in fluorescence...when illuminated with blue light (1). Similar to PA-GFP, scientists later developed red fluorescent PA-FPs...several rounds of random mutagenesis screening for enhanced RFP variants. PA-mCherry (E26V / A58T / K69N /...
  4. Neuronal labeling with Spaghetti Monster

    Type
    Blog Post
    Published
    Aug. 14, 2018, 12:42 p.m.
    ...fluorescent signals or using anti-FP antibodies. GFP emits light in only a single channel. In multi-color...proteins like Cyan. The issue with these FPs is that they are less photostable than GFP. In addition, ... structures GFP is limited in its ability to label subcellular structures in the CNS. GFP and other FPs... were better resolved with smFP_FLAG than GFP.   3. Enhanced ability to distinguish weakly expressed and...experiments (Rizzo, 2009). With many different FPs that emit across the visible spectrum, researchers can also...connectomic tracers Fluorescent proteins such as GFP have been used for a long time as probes to study..., prone to aggregation and cross-react with anti-GFP antibodies, making them difficult to use in a multicolor...
  5. Fluorescent Proteins 101: When GFP lets you down

    Type
    Blog Post
    Published
    Aug. 23, 2018, 12:05 p.m.
    ...S65T) in the original jellyfish GFP (AvGFP) to create enhanced GFP (EGFP), a variant with improved brightness... There are numerous GFP variants. Here I use the name ‘GFP’, which refers to mEGFP. This variant was made...examined on a case-by-case basis. GFP is sensitive to acid The chromophore of GFP can exist in a protonated and...its acid tolerance is maintained in cells.   GFP is big GFP is a 28 kDa protein that resembles a cylinder...2013; Hilaire et al., 2017). GFP can only be used for tagging proteins GFP fusion proteins are made by ... a fusion with GFP allows for detection of genomic locations (Chen et al., 2013). GFP fluorescence overlaps...overlaps with autofluorescence The cyan light that is used to excite GFP, may also excite several components...
  6. Illuminating Choices: A Guide to Selecting Fluorescent Dyes and Ligands

    Type
    Blog Post
    Published
    March 21, 2024, 1:15 p.m.
    ...state, the electron returns to its ground state by emitting a photon with slightly less energy due to non-...emission results in a slightly longer wavelength emitted than was absorbed. This phenomenon is known as ...labeling. Size is also a factor. Bulkier tags, such as GFP, may interfere with protein expression or function...the ratio of photons absorbed over the photons emitted. For example, DAPI is much dimmer than Alexa Fluor...fluorescent labeling techniques have significantly enhanced our understanding of cellular mechanisms. Advancements...current advancements include work exploring far-red-emitting dyes in bacterial imaging, offering solutions ...Expanding the microbiologist toolbox via new far-red-emitting dyes suitable for bacterial imaging . Microbiology...
  7. 28 Hot Plasmid Technologies from 2015

    Type
    Blog Post
    Published
    Dec. 23, 2015, 3:30 p.m.
    ...both the GFP and the RFP proteins in the nucleus. During the first round of translation, the GFP proteins...Compartment mCherry-Rab5 BFP-Rab5 GFP-Rab5B Vacuolar & Budding Compartment GFP-Rab4B Mitochondria mito-BFP...GTPase in division) GFP-Mff (outer membrane protein) Late Endosome mCherry-Rab7A GFP-Rab7A     ...many important biological contexts, such as the enhancement of transcriptional activation via binding of ...protein Knock-off, is made up of three components: a GFP protein that binds to the coding region of a reporter...reporter mRNA via a PP7 coat protein (NLS-PCP-GFP) a RFP protein that binds to the 3’ UTR of the reporter...these dCas9s with one of three fluorescent proteins (GFP, BFP and mCherry), the authors were able to visualize...
Showing: 1 - 7 of 7 results