Table 2: Receptors for activation and inhibition of NK cells.

Activation

receptors

Linking

Reference

NKG2C

NKG2D

NKG2E

KIR2-DS1

KIR2-DS2

KIR3-D

NKp30

NKp44

NKp46

NKp80

CD16

CD94

DNAM-1

HLA-E

MIC (a and b) and ULBP (1-6)

HLA-E

HLA-C2 (lysine in position 80)

HLA-C2 with viral peptide

HLA-F

B7-H6, HCMV-pp65, BAG6, heparan sulfate

MLL5, viral hemagglutinin, PCNA, PDGF-DD

Complement factor P, viral hemagglutinin, heparan sulfate

AICL

IgG antibody complex section

HLA-E

CD155 and CD112

34, 35

34-36

34, 35

34, 37

34, 37

34, 35

22, 34

22, 34

22, 34

38

34, 35

34, 35

34, 38

Inhibitory

receptors

KIR2DL1

KIR2DL2/3

KIR3DL1

KIR3DL2

NKG2A

NKRP1A

KLRG1

PD1

HLA-C2 (lysine in position 80)

HLA-C1 (asparagine in position 80) and HLA-C2 (lysine in position 80)

HLA-A, HLA-Bw4

HLA-Aw3, HLA-Aw11

Inhibitory peptide in HLA-E

LLT1

Cadherins

PDL1-L2

34

34

34

34

34

34

34

38

AICL = activating inducing ligand.

BAG6 = scythe protein.

HCMV = human cytomegalovirus.

HLA = human leukocyte antigen.

LLT1 = lectin-like transcript.

MIC = class I chain-related protein.

MLL5 = mixed lineage leukemia 5.

PCNA= proliferating cell nuclear antigen.

PDGF-DD = platelet-derived growth factor-DD.

PDL1 = programmed death-ligand 1.

ULBP= UL16-binding proteins.