The TIGIT:CD155 Homogeneous Assay Kit is designed to measure the inhibition of TIGIT binding to CD155. With this kit, only three simple steps on a microtiter plate are required. First, a sample containing TIGIT and an inhibitor of choice is incubated with the CD155 for 60 minutes. Next, acceptor beads are added, then donor beads, followed by reading the Alpha-counts.