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We narrowed to 450 results for: HA tag

Showing: 101 - 120 of 450 results

  1. "Hall of Fame" AAV Enhancers from the Allen Institute for Brain Science

    Type
    Blog Post
    Published
    Sept. 9, 2025, 1:15 p.m.
    ...%}{% end_module_attribute %}{% module_attribute "tag" is_json="true" %}{% raw %}"module"{% endraw %}{%...Region – Let's Go! Plasmids for Endogenous Gene Tagging in Human Cells Resources on addgene.org Allen...have the biggest impact. We should know — Addgene has built its foundation on this idea! And we believe... cell populations and regions of the brain. This has culminated in a collection of AAV enhancer plasmids... to express exogenous genes — a feature the AIBS has capitalized on. Figure 1: Schematic of transcriptional...Allen Institute’s Genetic Tools Atlas (GTA). The GTA has a wealth of information and includes annotated images...target a very specific cell type. However, Addgene has partnered with the AIBS to showcase the “best-in-...

  2. Searchable and Sortable gRNAs for Your Next CRISPR Experiment

    Type
    Blog Post
    Published
    May 17, 2016, 2:30 p.m.
    ...cut, activate, interfere, visualize, nick, purify, tag, scaffold, CRISPR-display, and dCas9-FokI. This table...Alternatively, you can select a target sequence which has already been shown to work in CRISPR experiments....experiments. Addgene’s dedication to resource sharing has led us to develop a searchable and sortable datatable ... to the fact that every gRNA listed in the table has been used effectively in a published article. This...target sequence, and model system. Even if a gRNA has been demonstrated to work in your system, it is worth...that locus. The data in the validated gRNA table has been derived from scientists’ submissions, either...

  3. Fluorescent Biosensors for Measuring Autophagic Flux

    Type
    Blog Post
    Published
    Jan. 22, 2019, 2:41 p.m.
    ...generate one molecule of GFP-tagged LC3 for every one molecule of RFP-tagged LC3∆G. Like the unmodified ...number of autophagosomes. This approach, however, has inherent limitations because it turns a dynamic process...

  4. Antibodies 101: Flow Cytometry

    Type
    Blog Post
    Published
    July 20, 2021, 1:15 p.m.
    ...Fluorescent Protein Should I Use? However, fusion proteins tag your protein of interest with a fluorescent reporter...protein. One downside of fusion proteins is that the tag can alter the structure of the protein. In some cases...timing of expression can also be affected by the tag.  Protein expression, measured using antibody conjugated...measured using visible light scatter The optical system has both visible and fluorescent light sources. Visible...autofluorescence from your target cell type or that has arisen from fixation. Also include an isotype control...secondary antibody control in which the primary antibody has been omitted from the staining protocol. This control...gating during data analysis.  We hope that this blog has provided you with an overview of flow cytometry for...

  5. Split-BioID: An Improved Method for Studying Protein-Protein Interactions

    Type
    Blog Post
    Published
    May 1, 2018, 1:57 p.m.
    ...BirA* biotinylation activity ceases. After biotin tagging of proteins in both BioID or Split-BioID, cells...depending on which terminus of the bait proteins were tagged but also which fragment of BirA*, either the N-...N- or the C-terminus, the bait proteins were tagged with. It’s best to test all combinations and pick ...opposed to an individual protein. The Bethune Lab has overcome this limitation by creating Split-BioID,... of the fusion protein. Advantages of Split-BioID Split-BioID’s key advantage over other PPI methods, ...proximity-dependent biotinylation technique BioID. The key advantage of Split-BioID is that it allows for the validation...

  6. Tips for arabidopsis transformation

    Type
    Blog Post
    Published
    Oct. 25, 2018, 1:23 p.m.
    ...terminally tagged fusion proteins with fluorescent (YFP, GFP, CFP, RFP, etc.) or affinity tags (HA, FLAG)....putative T1 transformants: When your T1 is on soil and has recovered from the stress of selection you can clip...cell fate maintenance in the stomatal lineage and has made countless transgenic plants in the process. ...

  7. Seeing Red: Simple GFP Photoconversion

    Type
    Blog Post
    Published
    Aug. 4, 2015, 2:30 p.m.
    ...rate. In many cases, however, a GFP-tagged cell line or organism has already been made, and it would be... Even though GFP has been so thoroughly characterized, it turns out this protein has a few more secrets...photoconvert GFP from green to RED! This simple technique has been shown to work in plant, Drosophila and mammalian...is great news for microscopy enthusiasts! Addgene has empty backbones containing GFP variants used by Sattarzadeh...

  8. Nanoblades: Tiny CRISPR Ninjas for Genome Editing Difficult Cells

    Type
    Blog Post
    Published
    Sept. 26, 2019, 12:50 p.m.
    ...fusion protein The MLV Gag protein fused to a Flag-tagged SpCas9 is incorporated into Nanoblades, just like...insertions like the addition of a fluorophore or tag. To utilize HDR, a donor template containing the ...particles with polybrene, a cationic polymer. Polybrene has long been used to increase retroviral transduction...of mouse zygotes and mice with Nanoblades CRISPR has also been extensively used to create transgenic mice...

  9. A Look at Addgene's QC Process

    Type
    Blog Post
    Published
    May 6, 2025, 1:15 p.m.
    ...plasmid they ordered contains the correct inserts, tags, promoters, and other critical functional components...on the information provided and vector type  Any tags, selectable markers, and fusion proteins listed ...including the propagation of plasmids in bacteria — has many points at which small errors can be introduced...Catching and addressing QC issues Addgene’s QC team has developed a process for identifying, categorizing...

  10. Antibody Validation for Flow Cytometry

    Type
    Blog Post
    Published
    Sept. 10, 2024, 1:15 p.m.
    ...measurable through an epitope tag such as FLAG/His/GFP. Fluorescent protein tags, which correlate closely ...different epitopes. Detection of overexpressed (tagged or untagged) protein When expression plasmids are available...expensive, it may be helpful to find an antibody that has already been validated for flow cytometry through...Characterization through Open Science) initiative has now started producing flow cytometry characterization...overexpression. Additionally, if the cell line used has endogenous levels of expression, this can make the...TIM-1 (Single pass type-1 membrane protein), which has been designated CD365 in the most recent HLDA workshop...as part of the YCharOS open science ecosystem. It has received in-kind support to produce this data from...

  11. In Vivo Biotinylation of Bacterial Fusion Proteins

    Type
    Blog Post
    Published
    Jan. 25, 2018, 2:09 p.m.
    ...controlled easier than formation of GST dimers. Avi-Tag plasmid for improved biotinylation selectivity A ...fusion protein from a bacterial extract. The MBP tag can be removed using Xa protease. The carboxyl-terminus... binding protein (MBP, New England BioLabs). MBP has a similar function as GST in that it provides a method...amino acid) AviTag sequence in a protein and adds biotin to a lysine residue within the AviTag. However,...carboxyl-terminus of the fusion protein includes an AviTag and a 6X HisTag for affinity purification (see plasmid ...dramatically increased accessibility of the AviTag and HisTag, which were “buried” in a few of our proteins...fusion proteins - but it would remove both the AviTag and HisTag. We were surprised that we couldn’t find ...

  12. The Power Behind NGS Plasmid Validation: seqWell

    Type
    Blog Post
    Published
    April 19, 2017, 3:25 p.m.
    ...after the first tagging step. As an additional benefit of plexWell™’s sequential tagging procedure, the...with our plasmid assembly pipeline. To date, this has resulted in high quality NGS-based assemblies for...

  13. Antibodies 101: Chimeric Antibodies

    Type
    Blog Post
    Published
    April 25, 2023, 1:15 p.m.
    ...fluorophore-tagged anti-rat IgG1 secondary to detect Protein A and green fluorophore-tagged anti-mouse ...imaging experiment   We hope that this blog post has answered all of your questions about the utility ...

  14. Choosing Your Fluorescent Proteins for Multi-Color Imaging

    Type
    Blog Post
    Published
    Oct. 9, 2014, 3 p.m.
    ...is the ability to follow multiple fluorescently tagged species simultaneously. To do so with fluorescent...generally the most detectable and so should be used to tag your least abundant proteins, with the blue and infrared...protein, if you know that your protein of interest has a similar spectrum. For example, here's a screenshot...#49004) to the spectra of both mCherry and TagRFP.  Here, the TagRFP spectrum is shown in the darker colors...peak of the TagRFP excitation and the emission filter collects a larger fraction of the TagRFP emission ...with this set are mTagBFP2, EGFP or one of the improved GFP variants, mRuby2 or TagRFP-T, and an infrared... emission. For this filter set, we would expect TagRFP to give a brighter signal than mCherry. In general...

  15. CRISPR 101: Targeting Non-Coding RNAs with CRISPR/Cas9

    Type
    Blog Post
    Published
    Nov. 14, 2024, 2:15 p.m.
    ...CRISPR plasmids at Addgene! Knock-in: Introducing tags or stop signals Once Cas9 generates double-strand...incorporating very long ncRNAs is impractical. Instead, tags or stop elements can be inserted to disrupt the ...CRISPR systems for targeting ncRNAs While CRISPR/Cas9 has proven to be an extremely useful system for modifying...This system is often used to knock down lncRNAs and has fewer off-target effects. Newer Cas protein variants...transcriptional activators such as VP64, SAM, or SunTag to specific ncRNA loci to enhance or upregulate...

  16. Antibodies 101: The Four ELISAs and When to Use Them

    Type
    Blog Post
    Published
    July 25, 2024, 1:15 p.m.
    ...The antibodies are conjugated with a reporter or tag that can then be detected.  Typically, the reporter... (HRP) or alkaline phosphatase (AP). Fluorescent tags may also be used, but for simplicity we will discuss...testing a recombinant protein, especially one with tags, be sure to include a sample that expresses the ...While the method is simple and saves time, it also has several drawbacks. Direct ELISAs generally have higher... of the advantages and disadvantages of each ELISA method Method Advantages Disadvantages Direct...rundown of the different types of ELISA, advantages and disadvantages of each, and some considerations when...isotype.     Specificity and timing are the major disadvantages of the indirect method. The assay only uses ...

  17. Simplify Cloning with in vivo Assembly

    Type
    Blog Post
    Published
    Oct. 18, 2018, 12:37 p.m.
    ...short sequences of up to 100 bp, such as epitope tags, design primers with template binding regions to...combining multiple primers, a C-terminal epitope tag can be moved to the N-terminus of a protein-coding... can be introduced in a gene, while adding a GFP-tag (Figure 3). Achieving multiple modifications requires..., TOP10, and Mach1. No common lab cloning strain has failed so far. What is most important is the transformation... to the 5’ end of the reverse primer. Mutagenesis - Mutagenesis is performed by designing primers astride...modification, from insertions, deletions, and point mutagenesis to complex assembly of multiple genes. Primer...rapid method for recombination and site-specific mutagenesis by placing homologous ends on DNA using polymerase...

  18. Avoiding the Dark Side of Fluorescent Protein Fusions with mOX FPs

    Type
    Blog Post
    Published
    Oct. 27, 2015, 3 p.m.
    ...and gram negative bacteria periplasm. Efforts to tag endogenous genes for proteins in these compartments...Munro, Sean, and H. R. Pelham. "Use of peptide tagging to detect proteins expressed from cloned genes:...Avaliable at Addgene Read Our Blog Post on Protein Tags Read Other Posts on Fluorescent Proteins Browse ...enabled numerous cell biology assays. However, there has been a pervasive view that most FPs in a cell will...FP-fusion proteins functionally relative to the untagged protein of interest. To avoid the accumulation...

  19. Mapping the 4D nucleome with CRISPR/Cas9

    Type
    Blog Post
    Published
    Aug. 11, 2015, 2:30 p.m.
    ... from this publication at Addgene. A protein-tagging system for signal amplification in gene expression...nuclease activity, catalytically dead Cas9 (dCas9) has many applications, the most well-known being transcriptional...transcriptional activation/repression. dCas9 has also previously been adapted to fluorescently label a sequence...imaging time for this technique. The NIH Common Fund has made mapping the 4D nucleome a specific priority,...ability to label live cells make this system truly advantageous. This new technique, developed in Thoru Pederson...sensitivity of the technique. One potential solution is SunTag, a synthetic scaffold that can be used to recruit...from Addgene!) Since the signal level provided by SunTag is so high, cells may be imaged under lower illumination...
Showing: 101 - 120 of 450 results