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Complete coding sequences and haplotypic associations of HLA-B*0707, -B*1524, -B*4405, -B*4802, -DRB1*0409, -DRB1*0411, -DRB1*1115, -DRB1*1305, and the novel allele -DRB1*0709. Group-specific amplification of cDNA from DRB1 alleles associated to DRB3 and DRB4.

We present here the characterization of the complete coding sequences, previously unavailable, of the human leukocyte antigen (HLA) alleles B*0707, B*1524, B*4405, B*4802, DRB1*0409, DRB1*0411, DRB1*1115, DRB1*1305, and that of a new allele, DRB1*0709. For the isolation of cDNA from the DRB1 gene, we designed a novel set of polymerase chain reaction (PCR) primers that makes it possible to amplify separately the groups of DRB1 alleles associated to each of the DRB3 and DRB4 loci. The primary structures, functional features, evolutionary relationships, haplotypic associations, and population distributions of each of the nine HLA-B and -DRB1 alleles reported here are reviewed.