Other KIR/HLA combinations associated with slower time to AIDS and lower viral load than seen in Bw6 homozygotes include KIR3DL1*004 + Bw4, KIR3DL1*h/*y + Bw4*80I, KIR3DL1*h/*y + B*27, KIR3DL1*l/*x + B*57 and KIR3DS1 + Bw4*80I (12, 13). The gene discussed is KIR3DL1; the disease is AIDS.