Polymorphisms of MICA gene and their linkage disequilibrium with HLA-B among ethnic Han Chinese from Shenzhen / 中华医学遗传学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To study the distribution of MICA alleles among ethnic Han Chinese blood donors from Shenzhen and their linkage disequilibrium with HLA-B gene.</p><p><b>METHODS</b>For 143 randomly selected blood donors, the MICA and HLA-B alleles were determined with a PCR-sequence based typing (SBT) method. Allelic frequency, haplotypic diversity and linkage disequilibrium were analyzed with a Pypop software.</p><p><b>RESULTS</b>Thirteen MICA and 35 HLA-B alleles were identified among the 143 blood donors, among which MICA*00801 had the highest frequency (76/286), whilst MICA*00801-HLA-B*4001 and MICA*010-HLA-B*4601 were the most common haplotypes. No novel allele was identified.</p><p><b>CONCLUSION</b>The allele frequencies, haplotype diversities and linkage disequilibrium parameters under a high resolution can facilitate further studies and applications of the MICA and HLA-B genes.</p>