Volume 5 Issue 1
Jun.  2021
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Lijun Wang, Wei Li, Dongmei Wang, Na Liu, Yanjun Jia. Distribution of HLA class Ⅰ and class Ⅱ haplotypes in Chinese Han population based on family segregation[J]. Blood&Genomics, 2021, 5(1): 21-28. doi: 10.46701/BG.2021012021109
Citation: Lijun Wang, Wei Li, Dongmei Wang, Na Liu, Yanjun Jia. Distribution of HLA class Ⅰ and class Ⅱ haplotypes in Chinese Han population based on family segregation[J]. Blood&Genomics, 2021, 5(1): 21-28. doi: 10.46701/BG.2021012021109

Distribution of HLA class Ⅰ and class Ⅱ haplotypes in Chinese Han population based on family segregation

doi: 10.46701/BG.2021012021109
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  • Corresponding author: Yanjun Jia, Department of HLA, Beijing Red Cross Blood Center, No. 37 Beisanhuan Zhong Road, Beijing 100088, China. E-mail: jiayj321@hotmail.com
  • Received Date: 2021-03-19
  • Accepted Date: 2021-05-26
  • Rev Recd Date: 2021-04-26
  • Publish Date: 2021-06-01
  • HLA haplotype analysis has important application value in human population genetics, anthropological research and HLA matching transplantation. Based on HLA-A, -B, -C, -DRB1 and -DQB1 genotyping data from 663 families including 663 leukemia patients and 991 related donors, the allele frequency (AF) and haplotype frequency (HF) of two-, three- and five-locus haplotype distribution patterns in the Chinese Han population were determined by family segregation. A total of 38 alleles at A locus, 75 alleles at B locus, 35 alleles at C locus, 53 alleles at DRB1 locus and 22 alleles at DQB1 locus were discovered in this population. The frequencies of these alleles were basically consistent with those of previous reports except for some tiny differences. The study found 11 A-C, 15 C-B, 4 B-DRB1 and 11 DRB1-DQB1 two-locus haplotypes with a frequency over 2%. The number of A-C-B and A-B-DRB1 three-locus haplotype with a frequency over 1% were 11 and 3 respectively. The most common HLA-A-C-B-DRB1-DQB1 haplotype (HF>1%) were A*3001-C*0602-B*1302-DR*0701-DQ*0202 (4.30%), A*0207-C*0102-B*4601-DR*0901-DQ*0303 (3.07%), A*3303-C*0302-B*5801-DR*0301-DQ*0201 (1.49%) and A*1101-C*0102-B*4601-DR*0901-DQ*0303 (1.01%). The results are helpful for finding matching donors for hematopoietic stem cell transplant patients and also contribute to transplant immunology, HLA-related diseases, research of human genetics and other fields.

     

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