Table 1.

Bw4/Bw6 motifs in 10 elite controllers (ECs) and 10 patients with high viral load (HVLpts).

Serological motifs	Class I type and allelesa	Amino-acid position (numberb in ECs/HVLpts)
		77	80	81	82	83
Bw4	HLA-A/B A*2402, B*1302, B*1513, B*2702, B*2704, B*3802, B*5101, B*5102, B*5201, B*5301, B*5801	Asn (9/3)*	Ile (9/1)** Thr (0/2)	Ala (9/3)*	Leu (9/3)*	Arg (9/3)*
Bw6	HLA-B B*1501, B*1502, B*1512, B*1532, B*3505, B*4001, B*4002, B*4601, B*4801, B*5401, B*5502	Ser (5/10)*	Asn (5/10)*	Leu (5/10)*	Arg (5/10)*	Gly (5/10)*

*P < 0.05 (Fisher’s exact test was performed on the frequency comparison of single amino-acid position between ECs and HVLpts).

**P < 0.01.

^aOnly alleles observed in the individuals who participated in the study.

^bThe number of individuals (either homozygous or heterozygous for Bw4 or Bw6) showing a particular amino acid at each HLA-I position.