منابع مشابه
Chemical labeling of protein in living cells.
Fluorescence imaging of fluorophore-labeled proteins opens a window into cellular protein biochemistry and enables direct visualization of protein dynamics, localization, and interactions in single living cells. Green fluorescent protein (GFP) and its color variants are popular fluorescent tags because they can be genetically fused to any protein of interest with great specificity. 2] However, ...
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Background: The magnetic nanoparticle-based transfection method is a relatively new technique for delivery of functional genes to target tissues. We aimed to evaluate the transfection efficiency of rat neural stem cell (NSC) using poly-L-lysine hydrobromide (PLL)-coated super paramagnetic iron oxide nanoparticles (SPION). Methods: The SPION was prepared and coated with PLL as transfection agent...
متن کاملInterfacial Polymerization for Colorimetric Labeling of Protein Expression in Cells
Determining the location of rare proteins in cells typically requires the use of on-sample amplification. Antibody based recognition and enzymatic amplification is used to produce large amounts of visible label at the site of protein expression, but these techniques suffer from the presence of nonspecific reactivity in the biological sample and from poor spatial control over the label. Polymeri...
متن کاملSpecific covalent labeling of recombinant protein molecules inside live cells.
Recombinant proteins containing four cysteines at the i, i + 1, i + 4, and i + 5 positions of an alpha helix were fluorescently labeled in living cells by extracellular administration of 4',5'-bis(1,3, 2-dithioarsolan-2-yl)fluorescein. This designed small ligand is membrane-permeant and nonfluorescent until it binds with high affinity and specificity to the tetracysteine domain. Such in situ la...
متن کاملDNA labeling in living cells.
BACKGROUND Live cell fluorescence microscopy experiments often require visualization of the nucleus and the chromatin to determine the nuclear morphology or the localization of nuclear compartments. METHODS We compared five different DNA dyes, TOPRO-3, TOTO-3, propidium iodide, Hoechst 33258, and DRAQ5, to test their usefulness in live cell experiments with continuous imaging and photobleachi...
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ژورنال
عنوان ژورنال: Nature Methods
سال: 2015
ISSN: 1548-7091,1548-7105
DOI: 10.1038/nmeth.3702