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Tissue Antigens. 1999 Jun;53(6):534-44.

Diversity of HLA-B17 alleles and haplotypes in East Asians and a novel Cw6 allele (Cw*0604) associated with B*5701.

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Japanese Red Cross Central Blood Center, Tokyo.


The distribution of HLA-B17 alleles and their association with HLA-A, -C and -DRB1 alleles were investigated in seven East Asian populations Japanese, South Korean, Chinese-Korean, Man, Northern Han, Mongolian and Buryat populations). The B17 alleles were identified from genomic DNA using group-specific polymerase chain reaction (PCR) followed by hybridization with sequence-specific oligonucleotide probes (SSOP). In all of these East Asian populations, except Japanese and Chinese-Koreans, B*5701 was detected and strongly associated with A*0101, Cw*0602 and DRB1*0701. In contrast, B*5801 was detected in all the seven populations and strongly associated with A*3303, Cw*0302, DRB1*0301 and DRB1*1302. The A*3303-Cw*0302-B*5801-DRB1*1302 haplotype was observed in South Korean, Chinese-Korean, Buryat and Japanese populations, while A*3303-Cw*0302-B*5801-DRB1*0301 was predominantly observed in the Mongolian population. A similar haplotype, A*0101-Cw*0302-B*5801-DRB1*1302, was observed in the Buryat population. A novel Cw6 allele, Cw*0604, was identified in the Man population. This Cw allele was observed on the haplotype A*0101-B*5701-DRB1*0701. Thus, we confirmed, at the sequence level, that the common haplotypes carrying B*5701 and B*5801 have been conserved and shared in East Asian populations.

[Indexed for MEDLINE]

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