Table 3.

Human KIR and their cognate ligands.

Inhibitory KIR		Activating KIR
KIR2DL1	HLA-C2 epitope	KIR2DS1	HLA-C2 epitope
KIR2DL2/3	HLA-C1 epitope	KIR2DS2	Unknown
KIR2DL4	HLA-G	KIR2DS3	Unknown
KIR2DL5A/B	Unknown	KIR2DS4	Subsets of HLA-C and HLA-A*11
KIR3DL1	HLA-A and HLA-B alleles encoding Bw4 epitope	KIR2DS5	HLA-C (variable)
KIR3DL2	HLA-A*03 and HLA-A*11	KIR3DS1	HLA-F
KIR3DL3	Unknown	KIR2DL4	HLA-G

Adapted from Boudreau and Hsu, Natural killer cell in human health and disease (65).