Abstract
A total of 125 Costa Ricans of Amerindian descent were genotyped at high-resolution for the human leukocyte antigen loci HLA-A, -B, -C, and -DRB1 using sequence-based typing methods. The respective allele and extended haplotype frequencies, as well as Hardy-Weinberg proportions were calculated. The most frequent extended haplotype identified was A*24:02:01-B*40:02:01-C*03:05-DRB1*04:07:01G, with an estimated frequency of 8.26%. A deviation from Hardy-Weinberg Equilibrium was detected at the DRB1 locus (p = 0.099). The HLA genotypic data of the population sample reported here are available publicly in the Allele Frequencies Net Database under the population name “Costa Rica Amerindians” and the identifier AFN3608.
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