Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford OX3 9DS, United Kingdom.
J Virol. 2011 Apr;85(7):3367-74. doi: 10.1128/JVI.02276-10. Epub 2011 Jan 19.
Previous studies have found an association between a single-nucleotide polymorphism 35 kb upstream of the HLA-C locus (-35 SNP), HLA-C expression, and HIV-1 set point viral loads. We show that the difference in HLA-C expression across -35 SNP genotypes can be attributed primarily to the very low expression of a single allelic product, HLA-Cw7, which is a common HLA type. We suggest that association of the -35 SNP and HIV-1 load manifests as a result of linkage disequilibrium of this polymorphism with both favorable and unfavorable HLA-C and -B alleles.
先前的研究发现,HLA-C 基因座上游 35kb 处的单核苷酸多态性(-35 SNP)、HLA-C 表达与 HIV-1 设定点病毒载量之间存在关联。我们表明,-35 SNP 基因型之间 HLA-C 表达的差异主要归因于 HLA-Cw7 单一等位基因产物的极低表达,HLA-Cw7 是一种常见的 HLA 类型。我们认为,-35 SNP 与 HIV-1 载量的关联表现为该多态性与有利和不利的 HLA-C 和 -B 等位基因的连锁不平衡的结果。