Avidity
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Avidity
Avidity (/əˈvɪdɪti/) is a term used in immunology and biochemistry to describe the combined strength of multiple affinities between a molecule and its ligand or receptor.
Etymology
The term 'avidity' is derived from the Latin word 'aviditas', which means 'eagerness' or 'desire'. In the context of immunology and biochemistry, it refers to the overall strength of binding between a molecule and its receptor or ligand.
Related Terms
- Affinity: The strength of the interaction between a single binding site of a molecule and its ligand or receptor.
- Ligand: A substance that forms a complex with a molecule to serve a biological purpose.
- Receptor: A protein molecule that receives chemical signals from outside a cell.
- Antibody: A blood protein produced in response to and counteracting a specific antigen.
- Antigen: A toxin or other foreign substance which induces an immune response in the body, especially the production of antibodies.
See Also
External links
- Medical encyclopedia article on Avidity
- Wikipedia's article - Avidity
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