Summary: The TR-FRET Retinoic Acid Receptor (RAR) gamma Coactivator Assay Kit provides a sensitive and robust method for high-throughput screening of potential RAR gamma ligands as agonists of coactivator recruitment. The homogeneous mix-and-read assay format results in a ligand EC50 composite value representing the amount of ligand required to bind to receptor, effect a conformational change, and recruit coactivator peptide.