receptor binding assay

A receptor binding assay is a laboratory technique used to measure how well a substance, like a drug or hormone, attaches to a specific receptor on a cell or molecule. The process involves mixing the substance with a sample containing the receptor, often labeled with a detectable marker. Researchers then measure how much of the substance binds to the receptor, providing insight into its affinity and effectiveness. This helps scientists understand how potential medications or hormones interact with cells, informing drug development and hormonal studies.