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In immunology, epitope mapping is the process of experimentally identifying the binding site, or epitope, of an antibody on its target antigen (usually, on a protein). [ 1 ] [ 2 ] [ 3 ] Identification and characterization of antibody binding sites aid in the discovery and development of new therapeutics , vaccines , and diagnostics .
An epitope, also known as antigenic determinant, is the part of an antigen that is recognized by the immune system, specifically by antibodies, B cells, or T cells. The part of an antibody that binds to the epitope is called a paratope .
Epitope binning is a competitive immunoassay used to characterize and then sort a library of monoclonal antibodies against a target protein. [1] Antibodies against a similar target are tested against all other antibodies in the library in a pairwise fashion to see if antibodies block one another's binding to the epitope of an antigen. [2]
The Immune Epitope Database and Analysis Resource (IEDB) is a project hosted by scientists at the La Jolla Institute for Allergy and Immunology (LIAI), with support from the National Institute of Allergy and Infectious Diseases (NIAID), a part of the National Institutes of Health [permanent dead link ] (NIH), and Department of Health and Human Services (HHS).
In academia, computational immunology is a field of science that encompasses high-throughput genomic and bioinformatics approaches to immunology.The field's main aim is to convert immunological data into computational problems, solve these problems using mathematical and computational approaches and then convert these results into immunologically meaningful interpretations.
A particular antibody often selects for a subpopulation of its target protein that has the epitope exposed, thus failing to identify any proteins in complexes that hide the epitope. This can be seen in that it is rarely possible to precipitate even half of a given protein from a sample with a single antibody, even when a large excess of ...
In immunostaining methods, an antibody is used to detect a specific protein epitope. These antibodies can be monoclonal or polyclonal. Detection of this first or primary antibody can be accomplished in multiple ways. The primary antibody can be directly labeled using an enzyme or fluorophore.
Computationally predicted miRNA targets derived from TargetScan are comparable to CLIP in identifying miRNA targets, raising questions as to its utility relative to existing predictions. [46] Because CLIP methods rely on immunoprecipitation, crosslinked RNA could in some cases affect antibody-epitope interactions.
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