Term: competitive binding assay
https://doi.org/10.1351/goldbook.C01199

Definition:
An assay based on the competition between a labelled and an unlabelled ligand in the reaction with a receptor binding agent (e.g. antibody, receptor, transport protein).

Related Terms:
1) assay (http://doi.org/10.1351/goldbook.A00470).
2) labelled (http://doi.org/10.1351/goldbook.L03424).
3) ligand (http://doi.org/10.1351/goldbook.L03518).
4) antibody (http://doi.org/10.1351/goldbook.A00384).
5) competition (http://doi.org/10.1351/goldbook.C01198).
6) receptor (http://doi.org/10.1351/goldbook.RT06841).

Source: PAC, 1994, 66, 2513. 'Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)' on page 2516 (https://doi.org/10.1351/pac199466122513)

Citation: 'competitive binding assay' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.C01199

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