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soluble antigen fluorescent antibody test - translation to russian
![A fluorescent stain for [[actin]] in the [[smooth muscle]] of the skin.](https://commons.wikimedia.org/wiki/Special:FilePath/Blood vessels in porcine skin - SMA A488 - 20x.jpg?width=200 "A fluorescent stain for [[actin]] in the [[smooth muscle]] of the skin.")
общая лексика
гомогенный иммунофлуоресцентный анализ антигенов
![An illustration that shows how antigens induce the [[immune system]] response by interacting with an [[antibody]] that matches the [[molecular structure]] of an antigen](https://commons.wikimedia.org/wiki/Special:FilePath/Antibody.svg?width=200 "An illustration that shows how antigens induce the [[immune system]] response by interacting with an [[antibody]] that matches the [[molecular structure]] of an antigen")
Definition
Wikipedia
Immunofluorescence is a technique used for light microscopy with a fluorescence microscope and is used primarily on biological samples. This technique uses the specificity of antibodies to their antigen to target fluorescent dyes to specific biomolecule targets within a cell, and therefore allows visualization of the distribution of the target molecule through the sample. The specific region an antibody recognizes on an antigen is called an epitope. There have been efforts in epitope mapping since many antibodies can bind the same epitope and levels of binding between antibodies that recognize the same epitope can vary. Additionally, the binding of the fluorophore to the antibody itself cannot interfere with the immunological specificity of the antibody or the binding capacity of its antigen. Immunofluorescence is a widely used example of immunostaining (using antibodies to stain proteins) and is a specific example of immunohistochemistry (the use of the antibody-antigen relationship in tissues). This technique primarily makes use of fluorophores to visualise the location of the antibodies.
Immunofluorescence can be used on tissue sections, cultured cell lines, or individual cells, and may be used to analyze the distribution of proteins, glycans, and small biological and non-biological molecules. This technique can even be used to visualize structures such as intermediate-sized filaments. If the topology of a cell membrane has yet to be determined, epitope insertion into proteins can be used in conjunction with immunofluorescence to determine structures. Immunofluorescence can also be used as a "semi-quantitative" method to gain insight into the levels and localization patterns of DNA methylation since it is a more time-consuming method than true quantitative methods and there is some subjectivity in the analysis of the levels of methylation. Immunofluorescence can be used in combination with other, non-antibody methods of fluorescent staining, for example, use of DAPI to label DNA. Several microscope designs can be used for analysis of immunofluorescence samples; the simplest is the epifluorescence microscope, and the confocal microscope is also widely used. Various super-resolution microscope designs that are capable of much higher resolution can also be used.
