Publication Date:
2011-04-19
Description:
The HLA-C locus is distinct relative to the other classical HLA class I loci in that it has relatively limited polymorphism, lower expression on the cell surface, and more extensive ligand-receptor interactions with killer-cell immunoglobulin-like receptors. A single nucleotide polymorphism (SNP) 35 kb upstream of HLA-C (rs9264942; termed -35) associates with control of HIV, and with levels of HLA-C messenger RNA transcripts and cell-surface expression, but the mechanism underlying its varied expression is unknown. We proposed that the -35 SNP is not the causal variant for differential HLA-C expression, but rather is marking another polymorphism that directly affects levels of HLA-C. Here we show that variation within the 3' untranslated region (UTR) of HLA-C regulates binding of the microRNA hsa-miR-148 to its target site, resulting in relatively low surface expression of alleles that bind this microRNA and high expression of HLA-C alleles that escape post-transcriptional regulation. The 3' UTR variant associates strongly with control of HIV, potentially adding to the effects of genetic variation encoding the peptide-binding region of the HLA class I loci. Variation in HLA-C expression adds another layer of diversity to this highly polymorphic locus that must be considered when deciphering the function of these molecules in health and disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3084326/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3084326/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kulkarni, Smita -- Savan, Ram -- Qi, Ying -- Gao, Xiaojiang -- Yuki, Yuko -- Bass, Sara E -- Martin, Maureen P -- Hunt, Peter -- Deeks, Steven G -- Telenti, Amalio -- Pereyra, Florencia -- Goldstein, David -- Wolinsky, Steven -- Walker, Bruce -- Young, Howard A -- Carrington, Mary -- 5-M01-RR-00722/RR/NCRR NIH HHS/ -- HHSN261200800001E/CO/NCI NIH HHS/ -- HHSN261200800001E/PHS HHS/ -- N02-CP-55504/CP/NCI NIH HHS/ -- P30 AI060354/AI/NIAID NIH HHS/ -- R01-DA04334/DA/NIDA NIH HHS/ -- R01-DA12568/DA/NIDA NIH HHS/ -- U01-AI-35039/AI/NIAID NIH HHS/ -- U01-AI-35040/AI/NIAID NIH HHS/ -- U01-AI-35041/AI/NIAID NIH HHS/ -- U01-AI-35042/AI/NIAID NIH HHS/ -- U01-AI-35043/AI/NIAID NIH HHS/ -- U01-AI-37613/AI/NIAID NIH HHS/ -- U01-AI-37984/AI/NIAID NIH HHS/ -- UL1 RR024131/RR/NCRR NIH HHS/ -- Intramural NIH HHS/ -- England -- Nature. 2011 Apr 28;472(7344):495-8. doi: 10.1038/nature09914. Epub 2011 Apr 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer and Inflammation Program, Laboratory of Experimental Immunology, SAIC-Frederick, Inc., NCI-Frederick, Frederick, Maryland, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21499264" target="_blank"〉PubMed〈/a〉
Keywords:
3' Untranslated Regions/genetics
;
Alleles
;
Base Sequence
;
Cell Line
;
*Gene Expression Regulation/genetics/immunology
;
Genes, Reporter/genetics
;
HIV/*immunology
;
HIV Infections/*genetics/*immunology/therapy
;
HLA-C Antigens/*genetics
;
Humans
;
MicroRNAs/*genetics
;
Polymorphism, Single Nucleotide/genetics
;
Viral Load
Print ISSN:
0028-0836
Electronic ISSN:
1476-4687
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
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