Recombinant Jurkat cell line constitutively expressing a full length human TIGIT (T_x000D_cell Immunoreceptor with Immunoglobulin and ITIM domain; VSTM3), and a firefly luciferase_x000D_gene under the control of nuclear factor of activator T cells (NFAT) response element. Both_x000D_TIGIT and NFAT constructs have been stably integrated into Jurkat cells. TIGIT expression has_x000D_been confirmed by Western Blot, and TIGIT-specific NFAT response has been validated using a_x000D_TIGIT ligand, CD155 (PVR).