Distribution of human leucocyte antigen-A, -B and -DR alleles and haplotypes at high resolution in the population from Jiangsu province of China

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Abstract

The frequencies of human leucocyte antigen (HLA)-A, -B and -DRB1 alleles and haplotypes were statistically analysed among 3238 donors from Chinese Marrow Donor Program (CMDP) Jiangsu Branch. All donors were typed using polymerase chain reaction–sequence-based typing (PCR-SBT) method or polymerase chain reaction–reverse sequence-specific oligonucleotide probe (PCR-rSSOP) method. As a result, a total of 46 A, 85 B and 51 DRB1 alleles were found in Jiangsu population. The first three frequent alleles in HLA-A, -B and -DRB1 loci respectively were A*11:01(16.52%), A*24:02(15.10%) and A*02:01(13.02%); B*13:02(11.60%), B*46:01(8.89%) and B*58:01(7.12%); and DRB1*07:01(15.78%), DRB1*09:01(15.26%) and DRB1*15:01(9.76%). The top two frequent A-B-DRB1 haplotypes were A*30:01-B*13:02-DRB1*07:01(8.87%) and A*02:07-B*46:01-DRB1*09:01(2.79%); the top three A-B haplotypes were A*33:03-B*58:01-DRB1*03:01(2.59%), A*30:01-B*13:02(9.92%) and A*33:03-B*58:01(5.48%); the top two B-DRB1 haplotypes were B*13:02-DRB1*07:01(10.23%) and B*46:01-DRB1*09:01(4.61%); the top two A-DRB1 haplotypes were A*30:01-DRB1*07:01(8.96%) and A*33:03-DRB1*13:02(3.95%). These findings provided useful information in the study of genetics and anthropology in Chinese Han population. It also served as a basic guide for selection of future donors in CMDP Jiangsu Branch.

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