BAG6 and neoplasm: NKp30 recognizes BAT3/BAG6 and B7-H6; NKp44 recognizes NKp44 ligand, a unique splice variant isoform of MLL5 protein; NKp46 recognizes vimentin; and each of these NCRs also recognizes particular heparan sulfate glycosaminoglycans that are uniquely expressed in tumor microenvironments[33].