antigen-antibody complex
(= immune complex)
The product of the reaction of antigen and immunoglobulin. If the antigen is polyvalent the complex may be insoluble; see also glomerulonephritis, Arthus reaction, Type III hypersensitivity. Immune complexes activate complement through the classical pathway.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

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  • antigen — noun Etymology: German, from French antigène, from anticorps antibody + gène gen Date: 1908 any substance (as an immunogen or a hapten) foreign to the body that evokes an immune response either alone or after forming a complex with a larger… …   New Collegiate Dictionary

  • Immune complex — Diseases An immune complex is formed from the integral binding of an antibody to a soluble antigen. The bound antigen acting as a specific epitope, bound to an antibody is referred to as a singular immune complex. After an antigen antibody… …   Wikipedia

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