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Various labeling techniques such as enzymatic labeling, protein labeling, and genetic labeling are widely utilized. Ethidium bromide, fluorescein and green fluorescent protein are common tags. The most commonly labelled molecules are antibodies, proteins, amino acids and peptides which are then used as specific probes for detection of a ...
Carboxyfluorescein diacetate succinimidyl ester (CFDA-SE) is an amine-reactive, cell-permeable dye generally used in animal cell proliferation research. CFDA-SE is a modified CFSE with two hydroxyl groups on its fluorescein moiety replaced with acetates.
Carboxyfluorescein succinimidyl ester (CFSE) is a fluorescent cell staining dye. CFSE is cell permeable and covalently couples, via its succinimidyl group, to intracellular molecules, [1] notably, to intracellular lysine residues and other amine sources.
I.e., FluoProbes488 reduces the background in Flow Cytometry [5] and in slide microscopy allowing sharper and brighter images. [6] FluoProbes 488, 547H and 647H are found more photostable [ 7 ] that is taken to good account in applications using long illuminations periods (i.e. scanning such as in confocal microscopy ), [ 8 ] or for longer ...
Maleimide-mediated methodologies are among the most used in bioconjugation. [5] [6] Due to fast reactions and high selectivity towards cysteine residues in proteins, a large variety of maleimide heterobifunctional reagents are used for the preparation of targeted therapeutics, assemblies for studying proteins in their biological context, protein-based microarrays, or proteins immobilisation. [7]
Fluorescein diacetate (FDA) hydrolysis assays can be used to measure the enzyme activity of microbes in a sample. A bright yellow-green glow is produced and is strongest when enzymatic activity is greatest. This can be quantified using a spectrofluorometer or a spectrophotometer.
Fluorescein amidites, abbreviated as FAM, are important synthetic equivalents of fluorescein dye used in oligonucleotide synthesis and molecular biology. FAM is used in the preparation of fluorescein-labeled oligonucleotide probes for the detection of the presence of the complementary nucleic acids or primers for polymerase chain reaction .
A carboxyfluorescein molecule is a fluorescein molecule with a carboxyl group added. They are commonly used as a tracer agents. It is used in the sequencing of nucleic acids and in the labeling of nucleotides. Commercially available FAM is a mixture of two isomers, 5-FAM and 6-FAM, and the correct name is 5(6)-carboxyfluorescein.
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