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Int J Immunogenet. 2007 Apr;34(2):131-6.

Polymorphism of HLA class I genes in Meizhou Han population of Guangdong, China.

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  • 1State Key Laboratory for Biocontrol, Guangdong Key Laboratory of Pharmaceutical Functional Genes, Department of Biochemistry, College of Life Sciences, Sun Yat-sen (Zhongshan) University, Guangzhou, Guangdong, 510275 China.


Human leukocyte antigen (HLA) is an invaluable marker for anthropological studies because of its extreme polymorphism. Most of the studies carried out in Chinese populations are about HLA class II genes, but few about class I genes. In the present study, we investigated HLA class I polymorphism using polymerase chain reaction-sequencing-based typing (PCR-SBT) method in 104 unrelated Han individuals in Meizhou of Guangdong, southern China. Twenty-three HLA-A, 43 HLA-B and 27 HLA-C alleles were identified and allele frequencies and two-locus (C/B) and three-locus (A/C/B) haplotypes were statistically analysed. The most frequent HLA-A allele is A*110101 with a frequency of 30.3%, followed by A*24020101 (22.2%) and A*2420 (11.6%). Among the 43 detected HLA-B alleles, B*5801 (17.0%), B*400101 (15.5%) and B*4601 (10.0%) were frequently observed. Among the 27 detected C alleles, the most predominant one is Cw*07020101 (25.8%), followed by Cw*0717 (14.7%). The most frequent HLA-C/B two-locus haplotype is Cw*07020101/B*400101 (10.1%). The most common HLA-A/C/B three-locus haplotype in Meizhou Han is A*110101/Cw*07020101/B*400101 (3.4%). Phylogenetic tree based on HLA class I allele frequencies genetically suggested that Meizhou Han has an affinity to southern Asian populations. The result may also reflect an admixture of Han and ethnic minorities of southern China.

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