A high-resolution HLA reference panel capturing global population diversity enables multi-ancestry fine-mapping in HIV host response.
A high-resolution HLA reference panel capturing global population diversity enables multi-ancestry fine-mapping in HIV host response.
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DOI:
10.1038/s41588-021-00935-7
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发表时间:
2021-10
期刊:
影响因子:
30.8
通讯作者:
Raychaudhuri S
中科院分区:
文献类型:
--
作者:
Luo Y;Kanai M;Choi W;Li X;Sakaue S;Yamamoto K;Ogawa K;Gutierrez-Arcelus M;Gregersen PK;Stuart PE;Elder JT;Forer L;Schönherr S;Fuchsberger C;Smith AV;Fellay J;Carrington M;Haas DW;Guo X;Palmer ND;Chen YI;Rotter JI;Taylor KD;Rich SS;Correa A;Wilson JG;Kathiresan S;Cho MH;Metspalu A;Esko T;Okada Y;Han B;NHLBI Trans-Omics for Precision Medicine (TOPMed) Consortium;McLaren PJ;Raychaudhuri S
Fine-mapping to plausible causal variation may be more effective in multi-ancestry cohorts, particularly in the MHC, which has population-specific structure. To enable such studies, we constructed a large (n = 21,546) HLA reference panel spanning five global populations based on whole-genome sequences. Despite population specific long-range haplotypes, we demonstrated accurate imputation at G-group resolution (94.2%, 93.7%, 97.8% and 93.7% in Admixed African (AA), East Asian (EAS), European (EUR) and Latino (LAT) populations). Applying HLA imputation to genome-wide association study (GWAS) data for HIV-1 viral load in three populations (EUR, AA and LAT), we obviated effects of previously reported associations from population-specific HIV studies and discovered a novel association at position 156 in HLA-B. We pinpointed the MHC association to three amino acid positions (97, 67 and 156) marking three consecutive pockets (C, B and D) within the HLA-B peptide binding groove, explaining 12.9% of trait variance.
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影响因子:
14.9
作者:
Buniello, Annalisa;MacArthur, Jacqueline A. L.;Parkinson, Helen
通讯作者:
Parkinson, Helen
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Fellay, Jacques
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通讯作者:
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通讯作者:
Raychaudhuri S