competitive binding assay
Definition: general term for an assay in which a substance competes for labeled versus unlabeled ligand; following separation of free and bound ligand, the concentration of unlabeled ligand is inversely proportional to the amount of labeled bound ligand. Values are compared with known standards.
Synonym(s): displacement analysis, saturation analysis
See Also: enzyme-linked immunosorbent assay, radioreceptor assay, immunoassay, enzyme-multiplied immunoassay technique, radioimmunoassay
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