Table 1.

Proportion of Bound Peptides across the Five Classical MHC Loci.

Locus	Proportion of Peptides Bound By At Least One Allele	Proportion of Bound Peptides Per Allele
		Min	Max	Median (95% CI)
HLA-A	0.185	0.014	0.074	0.017 (0.0159, 0.0178)
HLA-B	0.192	0.012	0.018	0.017 (0.0168, 0.0172)
HLA-C	0.079	0.014	0.019	0.017 (0.0165, 0.0171)
HLA-DRB1	0.025	0.002	0.005	0.003 (0.0026, 0.0031)
HLA-DQB1	0.011	0.001	0.004	0.002 (0.0015, 0.0027)

Note.—MHC allele-specific peptide binding was predicted computationally for each locus. Total number of peptides: 118,097.