The ligands of NKp30 contain the following [42]: (1) tumor cell ligands, such as B7-H6, BAG6/BAT3 (BCL2-associated athanogene 6/nuclear HLA-B-associated transcript-3 protein), and galectin-3; (2) viral ligands, such as HA of vaccinia virus and poxvirus and pp65 of human cytomegalovirus; and (3) parasitic ligands, such as Plasmodium falciparum erythrocyte membrane protein (PfEMP1). Here, NCR3 is linked to neoplasm.