antigenic determinant(redirected from determinant group)
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a factor that establishes the nature of an entity or event.
antigenic determinant a site on the surface of an antigen molecule to which a single antibody molecule binds; generally an antigen has several or many different antigenic determinants and reacts with many different antibodies. Called also epitope.
hidden determinant an antigenic determinant located in an unexposed region of a molecule so that it is prevented from interacting with receptors on lymphocytes, or with antibody molecules, and is unable to induce an immune response; it may appear following stereochemical alterations of molecular structure.
immunogenic determinant the part of an immunogenic molecule that interacts with a helper T cell in triggering antibody production as opposed to the antigenic determinant or hapten, which interacts with B cells.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
the particular chemical group of a molecule that determines immunologic specificity.
Synonym(s): determinant group
Farlex Partner Medical Dictionary © Farlex 2012
an·ti·gen·ic de·ter·mi·nant(an'ti-jen'ik dĕ-tĕr'mi-nănt)
The particular chemical group of a molecule that determines immunologic specificity.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
antigenic determinantA cluster of EPITOPES.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
antigenic determinantsee EPITOPE.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005