Cited by 179Genetic Associations and EpidemiologyRenal Transplantation Outcomes and TreatmentsHematopoietic Stem Cell Transplantation

New HLA haplotype frequency reference standards: high-resolution and large sample typing of HLA DR-DQ haplotypes in a sample of European Americans

Klitz, W., Maiers, M., Spellman, S., Baxter‐Lowe, L.A., Schmeckpeper, B., Williams, T.M., Fernandez‐Viña, M.·2003·Tissue Antigens

Abstract

Abstract: A collaborative study involving a large sample of European Americans was typed for the histocompatibility loci of the HLA DR‐DQ region and subjected to intensive typing validation measures in order to accurately determine haplotype composition and frequency. The resulting tables have immediate application to HLA typing and allogeneic transplantation. The loci within the DR‐DQ region are especially valuable for such an undertaking because of their tight linkage and high linkage disequilibrium. The 3798 haplotypes, derived from 1899 unrelated individuals, had a total of 75 distinct DRB1‐DQA1‐DQB1 haplotypes. The frequency distribution of the haplotypes was right skewed with haplotypes occurring at a frequency of less than 1% numbering 59 and yet constituting less than 12% of the total sample. Given DRB1 typing, it was possible to infer the exact DQA1 and DQB1 composition of a haplotype with high confidence (>90% likelihood) in 21 of the 35 high‐resolution DRB1 alleles present in the sample. Of the DRB1 alleles without high reliability for DQ haplotype inference, only *0401, *0701 and *1302 were common, the remaining 11 DRB1 alleles constituting less than 5% of the total sample. This approach failed for the 13 serologically equivalent DR alleles in which only 33% of DQ haplotypes could be reliably inferred. The 36 DQA1‐DQB1 haplotypes present in the total sample conformed to the known pattern of permissible heterodimers. Four DQA1‐DQB1 haplotypes, all rare, are reported here for the first time. The haplotype frequency tables are suitable as a reference standard for HLA typing of the DR and DQ loci in European Americans.

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Crossref · 10.1034/j.1399-0039.2003.00103.x

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Authors
Klitz, W., Maiers, M., Spellman, S., Baxter‐Lowe, L. A., Schmeckpeper, B., Williams, T. M., & Fernandez‐Viña, M.
Affiliations
  • National Marrow Donor Program (US)
  • University of California, San Francisco (US)
  • American Red Cross (US)
  • University of New Mexico Health Sciences Center (US)
Corresponding author
Klitz, W.
Venue
Tissue Antigens
Publisher
Wiley
Published
2003-09-16
Volume
62
Issue
4
Pages
296-307
ISSN
  • 0001-2815 (ISSN-L)
  • 1399-0039
OpenAlex
W1976319355
Cited by
179
References
0
Citations by year
2026: 5 · 2025: 5 · 2024: 9 · 2023: 5 · 2022: 1 · 2021: 9 · 2020: 9 · 2019: 4 · 2018: 6 · 2017: 11 · 2016: 6 · 2015: 12 · 2014: 7 · 2013: 8 · 2012: 12
FWCI
3.89
Type
journal article
Language
en
Open access
closed
Locations
  • Tissue Antigens (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Health Sciences › Medicine › Transplantation › Renal Transplantation Outcomes and Treatments
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
Keywords
HLA haplotype frequencies, HLA-DRB1, HLA-DQA1, HLA-DQB1, haplotype inference, linkage disequilibrium, European Americans, allogeneic transplantation, rare haplotypes
MeSH terms
Histocompatibility Antigens Class II, Gene Frequency, Haplotypes, Histocompatibility Testing, HLA-DQ Antigens, HLA-DR Antigens, Humans, Reference Standards, HLA-A Antigens, HLA-B Antigens, White People, HLA-DRB1 Chains, HLA-DQ alpha-Chains, HLA-DQ beta-Chains

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