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We narrowed to 33 results for: Folding Reporter GFP

Showing: 1 - 33 of 33 results
  1. FlipGFP, a novel fluorescence protease reporter to study apoptosis

    Type
    Blog Post
    Published
    May 21, 2019, 12:10 p.m.
    ...fluorescence 100-fold compared to other reporters (Zhang et al., 2019). How does FlipGFP work? GFP contains 11...fluorescent executioner caspase reporters. Several apoptosis reporters have been developed, such as the...transfer (FRET)-based executioner caspase reporters. In these reporters, the FRET pair is linked by a caspase... improved apoptosis reporter, ZipGFP, which utilized the self-assembling split GFP (GFP1-10 and GFP11)...self-assembling split GFP (GFP1-9 and GFP10-11) by flipping a single β-strand of GFP, hence the name FlipGFP...FlipCherry: Red fluorescence protease reporter To add to the fluorogenic reporter toolkit, the Shu Lab also designed...novel fluorogenic reporter that has a large dynamic range and high brightness. This reporter achieves approximately...
  2. Fluorescent Proteins 101: Green Fluorescent Protein (GFP)

    Type
    Blog Post
    Published
    May 15, 2014, 3:33 p.m.
    ...Bioluminescence and fluorescence from proteins such as Green Fluorescent Protein (GFP) has likely existed...scientists to begin to study GFP and deduce its biochemical properties. Now GFP and its fluorescent derivatives...constructing fluorescent fusions. Transcription Reporter: Placing GFP under the control of a promoter of interest.... This type of transcription reporting was among the earliest uses of GFP. Fluorescence resonance energy...of EGFP undergo folding, maturation, and fluorescence. Biosensors: A wide array of GFP-based fluorescent...expressing GFP from cells that are not. Developmental/transgenic uses: Because of its stability, GFP can be...derivatives are a staple in the lab. GFP is used in research across a vast array of biological disciplines...
  3. RANbodies: Reporter Nanobody Fusions

    Type
    Blog Post
    Published
    April 10, 2018, 12:56 p.m.
    ...detectable by two different tags: a reporter and an HA tag. The reporter comes in three varieties: HRP, Spaghetti...independent of the reporter. The only caveat is that HA staining is weaker than reporter staining. Picking...Picking the right reporter for your RANBody While all three reporters stain cultured cells and tissue sections... have 10 HA or 10 MYC tags built into a GFP scaffold. Some GFP nanobodies  stain poorly when tagged with...Monster, and Chicken IgY Domain RANbody Reporters. Reporter Detection Method Uses Pros Cons Antigens...weak signals of fluorescent protein (i.e. GFP, RFP) Detecting GFP reconstitution across synaptic partners...genetically tagged and instead are conjugated to reporters (i.e. fluorescent dyes, HRP, etc. ) after purification...
  4. Fluorescent Proteins 101: When GFP lets you down

    Type
    Blog Post
    Published
    Aug. 23, 2018, 12:05 p.m.
    ...discussed below. There are numerous GFP variants. Here I use the name ‘GFP’, which refers to mEGFP. This variant..., S65T) in the original jellyfish GFP (AvGFP) to create enhanced GFP (EGFP), a variant with improved brightness...Zacharias et al., 2002). GFP needs oxygen Chromophore formation requires a fully folded beta-barrel structure...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...
  5. Fluorescent CRISPR Reporters: SRIRACCHA and GEmCherry2

    Type
    Blog Post
    Published
    May 26, 2020, 1:15 p.m.
    ...histone)-GFP reporter into the genome of mammalian cells.  Figure 1: The SRIRACCHA reporter construct... CRISPR reporters in the near future.  SRIRACCHA (stable, but reversible, integrated reporter for assaying... the supplied donor plasmid will express GFP. If there’s GFP expression, presumably the endogenous target...the Madison lab found that H2B-GFP expressing cells exhibited a 2-4 fold increase in the number of endogenous... easily and seamlessly remove the integrated GFP reporter leaving you with just your desired genomic edit...Find GEmCherry2 reporter plasmids at Addgene Overall SRIRACHA and GEmCherry2 reporter systems provide ...Recently scientists have created CRISPR fluorescent reporter assays to quantify targeted Cas9 cleavage, and...
  6. SunTag and Fluorescent Imaging

    Type
    Blog Post
    Published
    March 28, 2017, 2:30 p.m.
    ...-molecule reporter of intracellular processes. Initially, Tanenbaum et al. observed some GFP aggregation...scaffold fully occupied with GFP has a molecular weight of 1,400 kDa vs 24 kDa for GFP alone. Although traditional...In biology as in life, more is often better. More transcription factor binding sites in a promoter lead... copies of the short epitope GCN4. GCN4 recruits GFP fused to the cognate scFV antibody, which is expressed...aggregation, which they reduced by using superfolder GFP (sfGFP) with the small solubility tag GB1. In SunTag...nomenclature throughout the rest of this blog post, GFP refers to sfGFP-GB1.   Tanenbaum et al. examined ...that plasma membrane-targeted CAAX-SunTag was 18-fold brighter than sfGFP! The high SunTag signal allowed...
  7. Hot Plasmids - January 2023

    Type
    Blog Post
    Published
    Jan. 31, 2023, 2:15 p.m.
    ...released Anti-GFP [N86/8R] as another option for targeting GFP. But why might you need a second GFP antibody...PMCID: PMC9015817.   Meet anti-GFP [N86/8R]! by: Ashley Waldron Anti-GFP [N86/38.1R] was among the first...on the Anti-GFP [N86/8R] page for more details. Image credit: Addgene.   Find anti-GFP [N86/8R] here...system Heat-inducible lentiviral Car constructs Anti-GFP [N86/8R] ready-to-use antibody Hyperfolder YFP ...ubiquitous promoter drives expression of an mCherry reporter.  After using mCherry for FACS sorting of the ...?  Similarities:  Generated against full length GFP and converted to recombinant form by the NeuroMab...variable domains that recognize different epitopes on GFP Monoclonal antibodies can yield relatively low signal...
  8. Stabilized Bacterial Promoters: Constant Gene Expression at any Copy Number

    Type
    Blog Post
    Published
    Sept. 4, 2018, 12:53 p.m.
    ...constitutive promoter upstream of GFP increased expression of GFP six-fold, but a stabilized promoter increased...of plasmids per cell increases 4-5 fold (for pUC plasmids) or ~2 fold (for p15a, R6K, and ColE2 plasmids...DNA sequences and have been shown to achieve ~100 fold repression in E. coli. In addition, TALEs bind non-cooperatively...buffered against the effects of copy number on reporter gene expression. On the other hand, using a constitutive...promoter in the same background resulted in a 20-fold variation of gene expression. Because pSC101 is ...increased expression only two fold. Moreover, gene expression levels returned to the baseline after 3 hours...
  9. Multiple Plasmids at a Low Price: Kits from Addgene

    Type
    Blog Post
    Published
    Sept. 14, 2016, 2:30 p.m.
    ...of varying strengths centered within GFP/RFP bicistronic reporters characterized in Cambray et al., 2013...various combinations of protein tags (His, Avi, and GFP) as well as protease sites to facilitate protein ...library by in vivo functional screen." Scientific reports 5 (2015). BIOFAB plasmid set 3000 Series Confronted...’ end of the leader sequence. Using a variety of GFP and RFP fusions as their test genes, the researchers... an Orthogonal Ribosome-Controlled Fluorescent Reporter."ACS chemical biology 11.1 (2015): 31-37. pCri...plasmids contain peptides to facilitate protein folding and/or protease sites to remove the epitope tags... pastoris depending upon your specific protein folding needs. The pCri system has recently been used ...
  10. 28 Hot Plasmid Technologies from 2015

    Type
    Blog Post
    Published
    Dec. 23, 2015, 3:30 p.m.
    ... three components: a GFP protein that binds to the coding region of a reporter mRNA via a PP7 coat protein...protein (NLS-PCP-GFP) a RFP protein that binds to the 3’ UTR of the reporter mRNA via an MS2 coat protein...64543or 64542) When the reporter mRNA is first transcribed, it is bound by both the GFP and the RFP proteins...their reporter mRNAs. Using the TRICK plasmids, Halstead et al demonstrated that 91% of reporter mRNAs...customized fluorescent reporters can be challenging enough, but incorporating multiple reporters into a single ...pyralis) reporter plasmids for use in high-throughput screening of pre-mRNA splicing. This reporter system...Compartment mCherry-Rab5 BFP-Rab5 GFP-Rab5B Vacuolar & Budding Compartment GFP-Rab4B Mitochondria mito-BFP...
  11. Bright Monomeric Fluorescent Proteins: mNeonGreen, mTFP1, and mWasabi

    Type
    Blog Post
    Published
    April 25, 2019, 3:01 p.m.
    ...the addition of the enhanced GFP (EGFP)-type termini. mNeonGreen was reported as the brightest monomeric... to 3 times brighter than the most commonly used GFPs and YFPs. Its excitation maxima is at 506 nm and...emission filter. This combination results in a 2.6-fold increase in signal relative to mCerulean imaged ... or for live cell imaging of fusions and FRET reporters. mTFP1 is also insensitive to physiologically ...green fluorescent protein. In vitro, mWasabi is 1.6-fold brighter than EGFP and is photostable. It also has...
  12. Choosing Your Fluorescent Proteins for Multi-Color Imaging

    Type
    Blog Post
    Published
    Oct. 9, 2014, 3 p.m.
    ...set and have reported brightness measurements. Here, EGFP outperforms the improved folding variants, presumably... / em 527 nm) can be imaged together but CFP and GFP (ex 488 nm / em 507 nm) show some crosstalk between...this set are mTagBFP2, EGFP or one of the improved GFP variants, mRuby2 or TagRFP-T, and an infrared fluorescent...brightness. In mammalian cells, one of the improved folding variants of EGFP like mEmerald or Clover is probably...
  13. Opto-Nanobodies: Using Light to Manipulate Cell Signaling and Protein Purification

    Type
    Blog Post
    Published
    Nov. 19, 2019, 2:08 p.m.
    ... (Avena sativa). In darkness, the AsLOV2 domain folds back on itself in a closed conformation, and in ...Lab monitored how AsLOV2 insertion into mCherry or GFP nanobodies affected binding of their target proteins...co-localization with a membrane-localized mCherry or GFP protein. With this system, if the OptoNB can bind...more OptoNBs, one against mCherry and one against GFP. Insertion of AsLOV2 into loop 1 always generated....  AsLOV2 Inertion Site mCherry #1 mCherry #2 GFP Loop 1 dark-induced dark-induced dark-induced ...activated Ras/Erk signaling by using a fluorescent reporter for Erk kinase translocation. These results demonstrate...control protein activity Read about RANbodies, reporter nanobody fusions Learn more about using the secondary...
  14. Choosing Your Perfect Empty Backbone

    Type
    Blog Post
    Published
    Aug. 19, 2014, 3:39 p.m.
    ...popular studies involve using a reporter vector to tag YGOI with lacZ and/or GFP (e.g. pPD80_08) and following...from the resin and used for various binding or folding assays. Yeast vectors There are several types of...animals, gene targeting and genome modifications to reporter vectors (e.g. pBV-Luc) and gene silencing (e.g...
  15. Technologies Enabled by NanoLuc® Luciferase

    Type
    Blog Post
    Published
    Feb. 8, 2018, 12:17 p.m.
    ...has dubbed these fusions LumiFluor Reporters. The LumiFluor reporter constructs were designed to be packaged... Nano-Lanterns. RLuc8 is 5.5-fold brighter than RLuc but NLuc is 30-fold brighter than RLuc8 (6). Susuki... The researchers took a FRET reporter and adapted it into a BRET reporter by using NanoLuc® Luciferase...compact powerhouse of bioluminescence, NLuc is 100-fold brighter than our more common luciferases like firefly...sensitive you can make a reaction. NLuc requires 100-fold less protein to produce the same amount of light...couples NLuc to fluorescent proteins to make better reporters and the second couples NLuc to fluorescent proteins...host cells. The fluorescent moiety of the BRET reporter was used to sort successfully infected/expressing...
  16. Fluorescent Proteins 101: Aptamer Fluorophores

    Type
    Blog Post
    Published
    April 11, 2017, 2:30 p.m.
    ...aptamers can either fold to incorporate their target molecule, such as a metal ion, or fold to incorporate ...nature of GFP fluorescence to create an improved fluorescent aptamer system. Knowing that GFP’s  structure... Experiments Learn more about GFP Controlling Protein Activity with GFP Resources at Addgene.org Find...highly customizable in terms of how they actually “report” as biosensors. Making aptamers glow The flexibility...increase its fluorescence, essentially mimicking GFP.  Though the aptamer, called Spinach, required longer...
  17. Fluorescent Proteins 101: Photoactivatable Fluorescent Proteins

    Type
    Blog Post
    Published
    April 25, 2017, 2:30 p.m.
    ...irreversible PA-FP reported was PA-GFP. PA-GFP was derived from Jellyfish (Aequorea victoria) GFP (wtGFP) by ...mutation in PA-GFP generates a chromophore population that is more neutral, causing PA-GFP to display almost... the anionic form, which allows PA-GFP to exhibit up to a 100-fold increase in fluorescence when illuminated...Color Contrast (Fold Change in Fluorescence) Brightness Excitation/ Emission (nm) PA-GFP Monomer UV-Violet...illuminated with blue light (1). Similar to PA-GFP, scientists later developed red fluorescent PA-FPs by ...in vivo imaging models perfer the PA-RFPs over PA-GFP. Another class of irreversible PA-FPs are the photoconvertible...State Activating Light Pre/ Post Color Contrast (Fold Change in Fluorescence) Brightness Excitation/ Emission...
  18. Tips for Screening with Yeast Two Hybrid Systems

    Type
    Blog Post
    Published
    Oct. 22, 2015, 2:30 p.m.
    ...its target gene, in this case a reporter gene (e.g. luciferase or GFP), regardless of whether it interacts...the promoter of the reporter gene to activate expression (Figure 2c). The reporter gene then allows detection...genes as reporters and some that repress instead of activate transcription. The HIS3 reporter system (...co-expressed in a yeast strain that also contains a reporter gene cloned downstream of a promoter containing...referred to as the “bait”, Figure 2b) cannot activate reporter gene expression on its own, but, if the two POI...Gal4 activator, bacterial LexA DBD and the lacZ reporter gene (3, 4), there are now many variations, including...to have Y2H systems that avoid transcriptional reporters altogether; In the split-luciferase system, intein-mediated...
  19. Fluorescent Proteins 101: Fluorescent Biosensors

    Type
    Blog Post
    Published
    May 18, 2017, 2:30 p.m.
    ...detects. This change then generates a reporter signal. Reporter signals may be electrochemical or light-based...light-based, with luminescent and fluorescent reporters being especially popular. We’ll give you an introduction...biosensors as an example. Many calcium biosensors include GFP fused to calmodulin (CaM) and the chicken myosin ...calcium-dependent increases in fluorescence of up to 11,000-fold. FRET biosensors are another common class of biosensors...glutamate sensor pCMV(MinDis).iGluSnFR. Picking your reporter Don’t forget about the other end of the biosensor...
  20. Synthetic Photobiology: Optogenetics for E. coli

    Type
    Blog Post
    Published
    Sept. 8, 2015, 2:30 p.m.
    ...phosphorylation, promoting transcription of a GFP reporter. Subsequent exposure to red light rapidly deactivates...highest level of “output” signal, was only about 10-fold, precluding the study of gene expression at very...leakiness and increased dynamic range to around 100-fold. These improvements will allow researchers to better...
  21. New Viral Vectors - Fall 2024

    Type
    Blog Post
    Published
    Oct. 3, 2024, 1:15 p.m.
    ... monkeys it actually targets neurons, and has 45-fold higher expression levels compared to AAV9. You can... can now target these cells with AAV-CAG-GFP packaged in AAV9-X1.1!  We also have eight new AAV-PHP.eB...Recombinases Jonathan Ting New viral prep pAAV-CAG-GFP AAV9-X1.1 Controls Edward Boyden New serotype pAAV-hSyn-EGFP...check out Addgene's Data Hub to see viral vector reports from other users. And don't forget to use the link...
  22. Avoiding the Dark Side of Fluorescent Protein Fusions with mOX FPs

    Type
    Blog Post
    Published
    Oct. 27, 2015, 3 p.m.
    ...of the fusion protein molecules fail to correctly fold? Misfolded FPs do not fluoresce. A dark population...potentially affect function [5]. We and others have reported that FP cysteine residues form inappropriate disulfide...posttranslational modifications can disrupt FP folding rendering the protein non-fluorescent. Unfortunately...been a pervasive view that most FPs in a cell will fold and that the fluorescence pattern is equivalent ...brighter FP, but rather because of the correct folding and fluorophore formation by most, if not all, ...Lindsey M. Costantini, and Erik L. Snapp. "Superfolder GFP is fluorescent in oxidizing environments when targeted...
  23. Viral Production at Addgene

    Type
    Blog Post
    Published
    Oct. 24, 2023, 1:15 p.m.
    ... later, Cre-dependent GFP expression was detected with direct fluorescence. GFP was not detected in the... obtained using ddPCR are generally two to three fold higher than those achieved using the standard qPCR...expression and/or function. These data are sometimes reported or posted on the material page for the corresponding...viral genomes (vg)/cell, pAAV-CAG-FLEX-rc [Jaws-KGC-GFP-ER2] (Addgene 84445-AAVrg) alone at 1.1E6 vg/mL, ...prep # 55632-AAVrg). pAAV-CAG- FLEX-rc [Jaws-KGC-GFP-ER2] was a gift from Edward Boyden (Addgene viral...recipient’s initial thaw will be accounted for in our reported titers. Lentiviral vectors are titered using a...
  24. Hot Plasmids - February 2022

    Type
    Blog Post
    Published
    Feb. 22, 2022, 2:15 p.m.
    ...anti-FLAG-FB-GFP binding to FLAG-tag H2B for nuclear localization. (c) Applications of anti-FLAG-FB-GFP labeling...binding region of a FLAG-binding scFv onto a well-folded scFv scaffold to improve its stability in cells...induce high levels of gene activation for both reporter and endogenous genes. It is highly specific in...
  25. Sleeping Beauty Awakens for Genome Engineering

    Type
    Blog Post
    Published
    June 30, 2015, 2 p.m.
    ...puromycin, hygromycin) and fluorescent protein reporters (GFP, BFP, RFP, no FP). The vectors each contain...SB transposase, SB100X, that is approximately 100-fold more efficient than the first-generation transposase...region of the RPL41 gene, to drive the selection/reporter parts of each construct. This new tool kit allows...
  26. Popular Retroviral Vectors and Their Uses in Scientific Research

    Type
    Blog Post
    Published
    July 24, 2018, 12:51 p.m.
    ...technology CAG-GFP-IRES-CRE (Plasmid #48201) This retroviral vector from the Gage lab encodes GFP and Cre-recombinase...Vectors   Expressing your gene of interest pMKO.1 GFP (Plasmid #10676) Retroviral vector for cloning and...and expressing your gene of interest with GFP expression.  Cloning and expressing RNAi pMKO.1 puro (Plasmid...a gRNA cassette. It can be used to produce a ~10-fold higher titer of lentiviral particles than the original...together with expression of fluorescent or enzymatic reporters for cellular assays and animal imaging studies...
  27. Plasmids 101: Repressible Promoters

    Type
    Blog Post
    Published
    Dec. 20, 2022, 2:15 p.m.
    ...stage-specific promoter and design a UAS reporter construct, the reporter will only be expressed where and/or...UAS to examine the expression of reporter genes, or to combine reporter expression from one promoter with...QUAS driven expression by ~3,300-fold in Drosophila cells and ~24,000-fold in human HeLa cells as compared...Church lab uses this system to control expression of GFP.)  To turn this inducible system into a repressible...
  28. Exploring Applications of the Bioluminescent HiBiT Tag

    Type
    Blog Post
    Published
    Oct. 2, 2025, 1:15 p.m.
    ...apart. While the classic Green Fluorescent Protein (GFP) and other fluorescent proteins revolutionized live-cell...protein detection, their bulk (~27 kDa) can perturb folding or trafficking and their detection can suffer from...the authors used a p53 response-element NanoLuc reporter to show that the mutants abolished transcriptional...This work highlights HiBiT tagging as a sensitive reporter for tracking proteomic cargo flow via EVs. Find...., & Wood, K. V. (2012). Engineered luciferase reporter from a deep sea shrimp utilizing a novel imidazopyrazinone...carcinoma in human tissue and in vitro. Oncology Reports, 50(5). https://doi.org/10.3892/or.2023.8631 Tsien...
  29. The Fluorescent Vegetables in Aptamer Soup

    Type
    Blog Post
    Published
    Jan. 29, 2019, 2:27 p.m.
    ...aptamers able to bind to a small molecule derivative of GFP called 3,5-difluoro-4-hydroxybenzylidene imidazolinone... DFHBI, is highly unstable in vivo due to poor folding and thermal instability at 37°C (Ouellet et al....Broccoli increases its fluorescence by about 1.8-fold, and may be a better choice for imaging than the...complex and the entire aptamer can hybridize and fold. (Alam et al., 2017). Yellow fluorescent aptamers...growth as RNA biology, we are looking forward to reports on the next additions to aptamer soup! References...
  30. Why Add Sucrose? Improved Yields for Adeno-associated Virus Preparation

    Type
    Blog Post
    Published
    Dec. 13, 2018, 1:14 p.m.
    ...following sucrose treatment. Moreover, several reports have shown that cells treated with sucrose or other...of sucrose improve AAV2 yields approximately 1.8-fold without affecting cell viability. This effect appears...endocytosis of a fluorescent dye and transduction of GFP-expressing AAV particles we did not observe any difference...
  31. Hot Plasmids: Summer 2024

    Type
    Blog Post
    Published
    Aug. 27, 2024, 1:15 p.m.
    ...capture module (SpyTag-GFP nanobody) assembled on beads. C) Micrograph of H1.8-GFP nucleosomes collected...In MagIC-cryo-EM, target proteins (expressed as a GFP fusion in this proof-of-concept study) are captured...SpyTag-SpyCatcher linkers and spacer proteins ending with a GFP nanobody (Figure 1). This enrichment streamlines ...) 3D model of the obtained structure of the H1.8-GFP-bound nucleosome. Images adapted from Arimura et ...Integrase Gene Editing (PASSIGE), their previously-reported technique for precisely integrating large DNA ... integration efficiency of 23%, a more than four-fold improvement over the wild-type enzyme. Find optimized...
  32. 15 Hot Plasmids from 2017

    Type
    Blog Post
    Published
    Jan. 9, 2018, 3:02 p.m.
    ...phosphatase-positive assay) as well as stabilization (Nanog-GFP reporter activation and silencing of factor-linked mCherry...are available at Addgene. Kim, et al. Stem Cell Reports. 2015. PubMed PMID: 25772473 Targeting and manipulating...enhancer elements and combined it with a variety of reporters (i.e. eGFP) and effectors (i.e. DREADDs). The ...quantum yield of 0.54) and mScarlet-H with M164H (2-fold improvement in photostability compared to mScarlet...off-target cutting, and they found that HF-BE3 showed 37-fold less off-target editing than BE3, with only a slight...reagents shared via Addgene. Narayan S, et al. Cell Reports. 2017. PubMed PMID: 28813671 Listen to the podcast...
  33. 27 Hot Plasmids from 2016

    Type
    Blog Post
    Published
    Dec. 22, 2016, 3:03 p.m.
    ...-ome using a quick, affordable, and ubiquitous reporter assay. In their recent publication, Kroeze et ...with unique tissue-specific promoters expressing GFP, tetracycline response elements, and shRNAs many ... different human cell models and identified ~4-5-fold more fitness-related genes than have been found ... of DsRed connected to a pH-sensitive variant of GFP (SEP) by a 9 amino-acid linker (see Figure 1). The...when it is difficult for a cell to synthesize or fold a protein because of its length. Mark Howarth’s ...endogenous proteins. As described in their recent Cell Reports paper, the Kanemaki lab overcame this hurdle using...TRIBE is the low input required - McMahon et al., report using as few as 150 fly neurons as their starting...
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