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首页> 外文期刊>International journal of immunogenetics >Polymorphism of HLA class I genes in Meizhou Han population of Guangdong, China.
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Polymorphism of HLA class I genes in Meizhou Han population of Guangdong, China.

机译:中国广东梅州汉族人群HLA I类基因的多态性。

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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.
机译:人类白细胞抗原(HLA)由于其极端的多态性而成为人类学研究的宝贵标志。在中国人群中进行的大多数研究都与HLA II类基因有关,但很少与I类基因有关。在本研究中,我们使用聚合酶链反应测序基于分型(PCR-SBT)方法在中国南方的广东省梅州市的104名无关汉族个体中调查了HLA I类多态性。鉴定了23个HLA-A,43个HLA-B和27个HLA-C等位基因,并统计分析了等位基因频率和两基因座(C / B)和三基因座(A / C / B)单倍型。最常见的HLA-A等位基因是A * 110101,频率为30.3%,其次是A * 24020101(22.2%)和A * 2420(11.6%)。在43个检测到的HLA-B等位基因中,经常观察到B * 5801(17.0%),B * 400101(15.5%)和B * 4601(10.0%)。在检测到的27个C等位基因中,最主要的是Cw * 07020101(25.8%),其次是Cw * 0717(14.7%)。 HLA-C / B两基因座最常见单倍型为Cw * 07020101 / B * 400101(10.1%)。梅州汉族中最常见的HLA-A / C / B三位基因单倍型是A * 110101 / Cw * 07020101 / B * 400101(3.4%)。基于HLA I类等位基因频率的系统进化树从基因上暗示梅州汉族对南亚人群具有亲和力。结果也可能反映了汉族和中国南方少数民族的混合。

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