Frequencies of HLA-C-B blocks in 234 admixed Mexican individuals (468 haplotypes).

Blocks of each ancestry (Amerindian, Caucasian, Caucasian shared with other populations, African, and Asian) were defined as those found in original populations with H.F. >1,0%, and not found in other native human groups in frequencies higher than 1,0%. We consider t value must be ≥2.0 to denote statistically significant association and thus validate Δ′ (shaded values).*Similar to B*35∶01 with a mutation at codon 207 ggc>tgc (Gly>Cys).§Similar to C*03∶04 with a mutation at codon 189 gtg>atg (Val>Met).