Antigen-antibody interaction
Antigen-Antibody Interaction
The Antigen-Antibody Interaction (pronunciation: an-ti-jen an-ti-bod-ee in-ter-ak-shun) is a specific chemical interaction between antibodies produced by B cells of the white blood cells and antigens during the immune response.
Etymology
The term 'Antigen' is derived from the words 'antibody generator', and 'Antibody' comes from the term 'immune body'. The term 'interaction' is derived from the Latin 'inter-' meaning 'between' and 'actio' meaning 'a doing or a making'.
Definition
Antigen-antibody interaction, also known as immune complex, is the binding of antigens to antibodies. This interaction is highly specific and leads to an immune response, which is the body's primary defense against pathogens.
Mechanism
The mechanism of antigen-antibody interaction involves the binding of the antigen's epitope (the part of the antigen that is recognized by the immune system) to the antibody's paratope (the part of the antibody that recognizes the antigen). This binding is similar to a lock and key mechanism and is highly specific.
Related Terms
- Agglutination: The clumping together of cells or particles, caused by antigen-antibody interaction.
- Precipitation: The process by which soluble antigens become insoluble complexes after interacting with antibodies.
- Neutralization: The process by which antibodies inhibit the biological effects of antigens.
- Complement system: A system of proteins that enhances the ability of antibodies to clear pathogens from the organism.
See Also
External links
- Medical encyclopedia article on Antigen-antibody interaction
- Wikipedia's article - Antigen-antibody interaction
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