Salamon, HKlitz, WilliamEasteal, SimonGao, XiaojiangFernandez-Vina, MTrachtenberg, ElizabethMcWeeney, ShannonNelson, MarkThomson, Gleys2015-12-130016-6731http://hdl.handle.net/1885/92526Analysis of the highly polymorphic β1 domains of the HLA class II molecules encoded by the DRB1, DQB1, and DPB1 loci reveals contrasting levels of diversity at the allele and amino acid site levels. Statistics of allele frequency distributions, based onKeywords: cd45 antigen; allele; amino acid sequence; article; ethnic difference; gene frequency; genetic polymorphism; genetic selection; genetic variability; homozygosity; human; major clinical study; molecular evolution; priority journal; protein domain; Alleles;Evolution of HLA class II molecules: Allelic and amino acid site variability across populations19992015-12-12