KIR3DL1 and Vogt-Koyanagi-Harada disease: Four of the six HLA class I molecules that displayed negative association with VKH disease function as ligands for KIR receptors–HLA-B44 and B52 carry the Bw4 ligand that binds to KIR3DL1 while HLA-B46 and Cw12 carry the C1 ligand that binds to KIR2DL2 and 2DL3.