PMID- 32042094 OWN - NLM STAT- MEDLINE DCOM- 20210707 LR - 20220420 IS - 1473-1150 (Electronic) IS - 1470-269X (Linking) VI - 20 IP - 5 DP - 2020 Oct TI - A high-resolution HLA imputation system for the Taiwanese population: a study of the Taiwan Biobank. PG - 695-704 LID - 10.1038/s41397-020-0156-3 [doi] AB - An imputation algorithm for human leukocyte antigen (HLA) is helpful for exploring novel disease associations. However, population-specific HLA imputation references are essential for achieving high imputation accuracy. In this study, a subset of 1012 individuals from the Taiwan Biobank (TWB) who underwent both whole-genome SNP array and NGS-based HLA typing were used to establish Taiwanese HLA imputation references. The HIBAG package was used to generate the imputation references for eight HLA loci at a two- and three-field resolution. Internal validation was carried out to evaluate the call threshold and accuracy for each HLA gene. HLA class II genes found to be associated with rheumatoid arthritis (RA) were validated in this study by the imputed HLA alleles. Our Taiwanese population-specific references achieved average HLA imputation accuracies of 98.11% for two-field and 98.08% for three-field resolution. The frequency distribution of imputed HLA alleles among 23,972 TWB subjects were comparable with PCR-based HLA alleles in general Taiwanese reported in the allele frequency net database. We replicated four common HLA alleles (HLA-DRB1*03:01, DRB1*04:05, DQA1*03:03, and DQB1*04:01) significantly associated with RA. The population-specific references provide an informative tool to investigate the associations of HLA variants and human diseases in large-scale population-based studies. FAU - Huang, Yu-Han AU - Huang YH AD - Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan. FAU - Khor, Seik-Soon AU - Khor SS AUID- ORCID: 0000-0002-6809-4731 AD - Department of Human Genetics, Graduate School of Medicine, the University of Tokyo, Toyo, Japan. FAU - Zheng, Xiuwen AU - Zheng X AUID- ORCID: 0000-0002-1390-0708 AD - Department of Biostatistics, University of Washington, Seattle, WA, USA. FAU - Chen, Hsuan-Yu AU - Chen HY AD - Institute of Statistical Science, Academia Sinica, Taipei, Taiwan. FAU - Chang, Ya-Hsuan AU - Chang YH AD - Institute of Statistical Science, Academia Sinica, Taipei, Taiwan. FAU - Chu, Hou-Wei AU - Chu HW AD - Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan. FAU - Wu, Pei-Ei AU - Wu PE AD - Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan. FAU - Lin, Yu-Ju AU - Lin YJ AD - Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan. FAU - Liao, Shu-Fen AU - Liao SF AD - Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan. AD - Institute of Statistical Science, Academia Sinica, Taipei, Taiwan. FAU - Shen, Chen-Yang AU - Shen CY AD - Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan. FAU - Tokunaga, Katsushi AU - Tokunaga K AD - Department of Human Genetics, Graduate School of Medicine, the University of Tokyo, Toyo, Japan. tokunaga@m.u-tokyo.ac.jp. FAU - Lee, Mei-Hsuan AU - Lee MH AD - Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan. meihlee@ntu.edu.tw. CN - HLA & KIR imputation network (HKimp.net) LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Validation Study DEP - 20200211 PL - United States TA - Pharmacogenomics J JT - The pharmacogenomics journal JID - 101083949 RN - 0 (HLA Antigens) RN - 0 (HLA-DQ alpha-Chains) RN - 0 (HLA-DQ beta-Chains) RN - 0 (HLA-DQA1 antigen) RN - 0 (HLA-DQB1 antigen) RN - 0 (HLA-DRB1 Chains) RN - 0 (HLA-DRB1*03:01 antigen) RN - 0 (HLA-DRB1*04:05 antigen) SB - IM MH - Arthritis, Rheumatoid/diagnosis/*genetics/immunology MH - Databases, Genetic MH - *Genetics, Population MH - Genotype MH - HLA Antigens/*genetics MH - HLA-DQ alpha-Chains/genetics MH - HLA-DQ beta-Chains/genetics MH - HLA-DRB1 Chains/genetics MH - High-Throughput Nucleotide Sequencing MH - Humans MH - Phenotype MH - *Polymorphism, Single Nucleotide MH - Reproducibility of Results MH - Taiwan MH - Whole Genome Sequencing EDAT- 2020/02/12 06:00 MHDA- 2021/07/08 06:00 CRDT- 2020/02/12 06:00 PHST- 2019/04/12 00:00 [received] PHST- 2020/01/27 00:00 [accepted] PHST- 2020/01/22 00:00 [revised] PHST- 2020/02/12 06:00 [pubmed] PHST- 2021/07/08 06:00 [medline] PHST- 2020/02/12 06:00 [entrez] AID - 10.1038/s41397-020-0156-3 [pii] AID - 10.1038/s41397-020-0156-3 [doi] PST - ppublish SO - Pharmacogenomics J. 2020 Oct;20(5):695-704. doi: 10.1038/s41397-020-0156-3. Epub 2020 Feb 11.