The TAF1 (BD1+BD2) TR-FRET Assay Kit is designed to measure the inhibition of TAF1 (BD1+BD2) binding to its substrate in a homogeneous 384 reaction format. This FRET-based assay requires no time-consuming washing steps, making it especially suitable for high throughput screening applications. The assay procedure is straightforward and simple; a sample containing trFluor™ europium (Eu)-labeled TAF1 (BD1+BD2), dye-labeled acceptor, substrate, and an inhibitor is incubated for 120 minutes. Then, the fluorescence intensity is measured using a fluorescence reader.