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Showing: 81 - 100 of 260 results
  1. Antibodies 101: Introduction to Antibodies

    Type
    Blog Post
    ...bind to intracellular proteins. The fluorescence signal is detected by the flow cytometer and functions... as a proxy for protein expression. Because the signal comes from the antibody-fluorophore conjugate, ...cytometry is the ability to use multiple fluorescent signals (up to a dozen or more!) to measure the relative...applications are typically used for investigating signaling pathways or developing therapeutics. Experimentally...
  2. Deep Dive: qPCR

    Type
    Blog Post
    ...you to measure the intensity of signal over an entire cycle. Since signals are produced by the presence ...double-stranded DNA, when temperatures are high, signal intensity should be low, reflecting the presence...errors and allow for well-to-well normalization of signal. They are often included in commercial sets and...
  3. Seeing Red: Simple GFP Photoconversion

    Type
    Blog Post
    ...the expression level necessary to observe a signal. Red signal intensity increases with GFP concentration...For low-abundance GFP fusions, a photoconversion signal may not be observed. Sattarzadeh et al. found that...
  4. Visualizing Genomic Loci with CRISPR-Sirius

    Type
    Blog Post
    ... increased brightness, they also found that the signal to noise ratio can be increased from 2-fold (by.... Of these, 26 of the 46 loci gave a detectable signal in human U2OS cells. Based upon this, they chose...Hanhui et al. “CRISPR-Sirius: RNA scaffolds for signal amplification in genome imaging.” Nature Methods...
  5. Antibodies 101: Polyclonal Antibodies

    Type
    Blog Post
    ...polyclonal, as their function is to amplify the signal from a primary antibody; the ability of polyclonal...their target protein thereby greatly increasing signal amplification.  When to stay away from polyclonal...positive control across experiments to be aware of signal strength. In general, polyclonal antibodies produce...
  6. Antibodies 101: Conjugation

    Type
    Blog Post
    ...various labels to antibodies that produce detectable signals like light or color. In this post, we’ll go over...is not visible or capable of producing a visible signal, but it has a strong affinity for avidin and streptavidin... molecule. These properties allow for efficient signal amplification, making biotin conjugated antibodies...
  7. RaPID Detection of RNA-protein Interactions

    Type
    Blog Post
    ...one minute BASU generated a strong streptavidin signal (~250-fold enrichment) when compared to a scrambled...scrambled RNA motif control). BioID2 had no detectable signal at the same time point. E. coli’s BirA* was tested...timescale, such as during drug action or cell signaling. Limitations of RaPID Like other BirA*-based proximity...
  8. Antibodies 101: Stripping and Reprobing Western Blots

    Type
    Blog Post
    ...rounds of stripping and reprobing, maximize your signal by starting with the least-abundant protein and...your fluorescent probe. Then, if you don’t see any signal, you’ll want to check for the primary antibody ...that you’re looking for a “blank” result! If some signal remains, you may want to repeat your stripping ...
  9. CRISPR 101: Targeting Non-Coding RNAs with CRISPR/Cas9

    Type
    Blog Post
    ...at Addgene! Knock-in: Introducing tags or stop signals Once Cas9 generates double-strand breaks, a new...2021). For example, inserting a polyadenylation signal downstream of the transcription start site will... insertion of a synthetic polyadenylation (spA) signal. Figure and caption adapted from Hazan and Bester...
  10. Illuminating Epigenetics with A FRET Based Biosensor

    Type
    Blog Post
    ...FRET signal. Subsequent demethylation separates the fluorescent units and so lowers the FRET signal back...a large role in turning genes ‘off’ and ‘on’, signaling which genes should be ‘read’ by the cellular machinery...
  11. Polymerase Chain Reaction Overview and Applications

    Type
    Blog Post
    ...is continuously detected via a fluorescent signal. The signal increases proportionally to the amount of...concentration of the starting template DNA the fluorescent signal throughout the reaction is compared to a standard...
  12. Antibodies 101: Conventional vs Spectral Flow Cytometry

    Type
    Blog Post
    ...fluorophore. For example, in figure 1, the FITC signal is spilling over into the primary detector for ...are a convenient tool to obtain a strong positive signal for a given fluorophore, as they contain a mixture...convenient in that they provide a strong positive signal, even for rare cellular markers, beads can sometimes...
  13. Hot Plasmids: Winter 2025

    Type
    Blog Post
    ...mark pixels used to measure signal along the dendrite. D) Fluorescence signal as a function of the distance...profiling or interrogation of context-dependent signaling in primary cells. The authors used this platform...
  14. Of Myc and Men

    Type
    Blog Post
    ...neighboring sequence context. Sci Signal 13. https://doi.org/10.1126/scisignal.aax9730  Additional resources on...90746-4 Munro S, Pelham HRB (1987) A C-terminal signal prevents secretion of luminal ER proteins. Cell...
  15. MXS Chaining

    Type
    Blog Post
    ...proteins, promoters, enhancers, polyadenylation signals, inducible gene-expression sequences, and more....promoter (to drive high-level expression) and a polyA signal (to terminate transcription) and the four constructs... containing multiple identical polyadenylation signals or promoters Gibson et al., 2009 MXS-Chaining...
  16. Plasmids 101: Secondary Nanobody Toolbox

    Type
    Blog Post
    ...immunodetection tools is their strong signal strength. This signal strength is due in large part to their... be labeled with up to 3 dyes, yielding similar signal strength to a standard IgG secondary antibody (...
  17. Rett Syndrome

    Type
    Collection
    ...interacting domain (NID) a nuclear localization signal (not essential for localization) the C - t erminal...C-terminal Anti-MECP2 (D4F3) rabbit antibody from Cell Signalling Technology Additional Resources (Link opens in...
  18. Advancing Biology with Zebrafish: Genetic Tools for Developmental Studies and More

    Type
    Blog Post
    ...Microscopy-based lineage tracing can help illuminate how signaling pathways—such as those regulated by one-eyed pinhead—contribute... study also showed that in the absence of the signaling pathway regulated by one-eyed pinhead, incorrect...transform zygotes into adults and explain how signaling pathways control this process. Additional zebrafish...
Showing: 81 - 100 of 260 results