molecular mimicry(redirected from Antigenic mimickry)
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an antigenic similarity between unrelated macromolecules, believed to play a role in the pathogenesis of rheumatic fever and other diseases. See also mimicry.
molecular mimicryImmunology A mechanism that may explain some forms of autoimmune disease, where the immune system attacks self antigens that are structurally similar to nonself antigens
Antigenic similarity between molecules found on some disease-causing microorganisms and on specific previously healthy body cells or tissues. Molecular mimicry is one explanation for autoimmune diseases. After infection with a microorganism whose surface contains antigens similar to those found in the body, the immune system may respond inappropriately by trying to damage these cells with similar surface antigens in otherwise healthy joints, blood vessels, or other organs.
of, pertaining to, or composed of molecules.
see enzyme activity.
study of the biochemical and biophysical aspects of the structure and function of genes and other subcellular entities, and of such specific proteins as hemoglobins, enzymes and hormones; it provides knowledge of cellular differentiation and metabolism and of comparative evolution.
layers of cells in both cerebellar and cerebral cortices.
see antigenic mimicry.
see molecular weight.