Fig. 2From: Repositioning liothyronine for cancer immunotherapy by blocking the interaction of immune checkpoint TIGIT/PVRVirtual screening of small molecule compounds from the natural product library targeting PVR. a The structure of PVR from PDB database (PDB ID: 3UDW), with the binding area of TIGIT/PVR interaction labeled in purple, and the binding pocket of compounds identified by MOE labeled in red. b The detail of interacting residues of the binding pocket. c The procedure of screening small molecule compounds targeting PVRBack to article page