Radioligand Assay

**Definition:** Quantitative determination of receptor (binding) proteins in body fluids or tissue using radioactively labeled binding reagents (e.g., antibodies, intracellular receptors, plasma binders).

**Tree numbers:** - E01.370.225.985 - E01.370.374.650 - E01.370.384.720 - E05.200.985

**Synonyms:** - Protein-Binding Radioassay - Radioreceptor Assay