作者: Y.J. Wang , N.J. Zhang , E. Chen , C.J. Chen , Y.H. Bu
DOI: 10.1016/J.HUMIMM.2016.03.005
关键词: Genetics 、 Tandem repeat 、 Gene polymorphism 、 Allele 、 Polymorphism (computer science) 、 Haplotype 、 Population 、 Major histocompatibility complex 、 Linkage disequilibrium 、 Biology
摘要: Previous studies indicate the distribution of major histocompatibility complex class I chain-related genes A (MICA) and B (MICB) alleles haplotypes varies widely between different ethnic populations geographic areas. It is meaningful to investigate allelic frequencies establish a genetic database. In this study, we firstly reported polymorphic variation MICA/B in 187 healthy, unrelated Tujia individuals Zhangjiajie region, China. Using polymerase chain reaction-sequence specific priming (PCR-SSP) sequencing-based typing (PCR-SBT), identified eight MICA-sequence alleles, four MICA-short tandem repeat variants, 13 MICB which MICA(∗)008:04 (29.41%), MICA(∗)A5 (29.68%), MICA(∗)A5.1 (29.68%) MICB(∗)005:02 (39.57%) were most frequent. Linkage disequilibrium analysis further revealed MICB(∗)005:02-MICA(∗)019 (13.10%) MICB(∗)002-MICA(∗)008:04 (9.89%) as common two-locus haplotypes. Data comparison by neighbor-joining dendrograms principal component verify other Chinese Asia groups showed that Tujias genetically closer Guangdong Han population, based on MICA loci variability. Our results provide new information about gene polymorphism will form basis for future potential role allogeneic organ transplantation disease susceptibility related groups.