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Showing: 61 - 80 of 246 results
  1. Antibodies 101: Choosing the Right Isotype

    Type
    Blog Post
    Published
    April 6, 2023, 3 p.m.
    ...on the target protein they tend to have a strong signal and to work in a variety of applications. The desired... to a monoclonal primary antibody (A). To boost signal, consider using subclass specific secondary antibodies...primary/secondary antibody binding and therefore the signal strength (Fig. 1). Monoclonal primaries If you ... have been cross-adsorbed to reduce off-target signals. Use isotype- or subtype-specific secondary antibodies...
  2. Bacterial Toxin-antitoxin Systems as Molecular Biology Tools

    Type
    Blog Post
    Published
    Nov. 1, 2018, 12:35 p.m.
    ...than plasmids without this DNA. They eventually designated this fragment as the ccdB region (for “coupled... specific nucleotide sequences, preventing the cognate restriction enzyme from cleaving the DNA. A role...regulated by antisense RNA, which base pairs to cognate mRNA to inhibit its translation. The hok/sok system...presence of liver metastasis by producing a detectable signal in urine. The bottom line with plasmid addiction...
  3. Tips for Using FRET in Your Experiments

    Type
    Blog Post
    Published
    Nov. 5, 2014, 3:41 p.m.
    ...cross-talk is high and your background signal may be higher than the signal generated by the energy transfer...complementary pair of fluorophores. To maximize the FRET signal you should choose the highest quantum yield donor...excited by a specific wavelength of light and the signal is collected by using emission filters chosen for...
  4. An Integrin Antibody Toolkit from IPI

    Type
    Blog Post
    Published
    March 28, 2024, 1:15 p.m.
    ...essential cell surface receptors involved in complex signaling pathways and the linkage of intra- and extracellular...processes, including cell adhesion, migration, and signaling, as well as immune response, tissue repair, and...new tools to identify integrin presence, study signaling mechanisms, or ascertain which integrins are responsible...adhesion and migration, initiating intracellular signal cascades, and allowing agile responses to mechanical...
  5. Antibodies 101: Introduction to Antibodies

    Type
    Blog Post
    Published
    Jan. 19, 2021, 2:15 p.m.
    ...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...
  6. Deep Dive: qPCR

    Type
    Blog Post
    Published
    Sept. 29, 2022, 1:15 p.m.
    ...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...
  7. Seeing Red: Simple GFP Photoconversion

    Type
    Blog Post
    Published
    Aug. 4, 2015, 2:30 p.m.
    ...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...
  8. Visualizing Translation at the Single Molecule Level

    Type
    Blog Post
    Published
    Aug. 1, 2017, 1:15 p.m.
    ...nuclear localization signal, NLS-PCP-GFP then returns to the nucleus to bind cognate untranslated mRNAs....displacement leads to a change in the fluorescent signal: untranslated RNAs appear yellow, and translated...
  9. FlipGFP, a novel fluorescence protease reporter to study apoptosis

    Type
    Blog Post
    Published
    May 21, 2019, 12:10 p.m.
    ...internal and external signals such as developmental cues and DNA damage. These signals activate a cascade... however have several limitations. First, FRET signals are often difficult to detect, and thus quantify...
  10. Visualizing Genomic Loci with CRISPR-Sirius

    Type
    Blog Post
    Published
    April 18, 2019, 12:53 p.m.
    ... 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...
  11. Using AAV for Neuronal Tracing

    Type
    Blog Post
    Published
    Aug. 9, 2018, 1:04 p.m.
    ... do it (i.e. where the signals come from and what implications their signaling is likely to have). Anterograde...neuron to another at synapses resulting in faint signals (Schwab et al., 1979; Buttry & Goshgarian, 2015...PubMed Central PMCID: PMC4678200.  Kohara, K., Pignatelli, M., Rivest, A.J., Jung, H.-Y., Kitamura, T.,...
  12. Antibodies 101: Conjugation

    Type
    Blog Post
    Published
    March 26, 2024, 1:15 p.m.
    ...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...
  13. RaPID Detection of RNA-protein Interactions

    Type
    Blog Post
    Published
    Aug. 16, 2018, 12:40 p.m.
    ...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...
  14. Antibodies 101: Polyclonal Antibodies

    Type
    Blog Post
    Published
    July 14, 2021, 1:15 p.m.
    ...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...
  15. CRISPR 101: Targeting Non-Coding RNAs with CRISPR/Cas9

    Type
    Blog Post
    Published
    Nov. 14, 2024, 2:15 p.m.
    ...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...
  16. Antibodies 101: Stripping and Reprobing Western Blots

    Type
    Blog Post
    Published
    Aug. 1, 2024, 1:15 p.m.
    ...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 ...
  17. Illuminating Epigenetics with A FRET Based Biosensor

    Type
    Blog Post
    Published
    Nov. 19, 2015, 3:30 p.m.
    ...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...
  18. Hot Plasmids: Winter 2025

    Type
    Blog Post
    Published
    March 11, 2025, 1:15 p.m.
    ...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...
  19. Polymerase Chain Reaction Overview and Applications

    Type
    Blog Post
    Published
    Aug. 10, 2021, 1:15 p.m.
    ...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...
  20. Of Myc and Men

    Type
    Blog Post
    Published
    Jan. 19, 2023, 2:15 p.m.
    ...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...
Showing: 61 - 80 of 246 results