KIR3DL1 and autoimmune hepatitis: In a Japanese cohort, KIR3DL1 and the cognate ligand HLA-B Bw4-80Ile were associated with AIH, while KIR3DL1/HLA-B Bw4-80Thr and KIR2DL1/HLC-C2 were associated with protection from the disease [59].