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. 2020 Jun;95(6):516-531.
doi: 10.1111/tan.13811. Epub 2020 Jan 31.

Common, intermediate and well-documented HLA alleles in world populations: CIWD version 3.0.0

Affiliations

Common, intermediate and well-documented HLA alleles in world populations: CIWD version 3.0.0

Carolyn K Hurley et al. HLA. 2020 Jun.

Abstract

A catalog of common, intermediate and well-documented (CIWD) HLA-A, -B, -C, -DRB1, -DRB3, -DRB4, -DRB5, -DQB1 and -DPB1 alleles has been compiled from over 8 million individuals using data from 20 unrelated hematopoietic stem cell volunteer donor registries. Individuals are divided into seven geographic/ancestral/ethnic groups and data are summarized for each group and for the total population. P (two-field) and G group assignments are divided into one of four frequency categories: common (≥1 in 10 000), intermediate (≥1 in 100 000), well-documented (≥5 occurrences) or not-CIWD. Overall 26% of alleles in IPD-IMGT/HLA version 3.31.0 at P group resolution fall into the three CIWD categories. The two-field catalog includes 18% (n = 545) common, 17% (n = 513) intermediate, and 65% (n = 1997) well-documented alleles. Full-field allele frequency data are provided but are limited in value by the variations in resolution used by the registries. A recommended CIWD list is based on the most frequent category in the total or any of the seven geographic/ancestral/ethnic groups. Data are also provided so users can compile a catalog specific to the population groups that they serve. Comparisons are made to three previous CWD reports representing more limited population groups. This catalog, CIWD version 3.0.0, is a step closer to the collection of global HLA frequencies and to a clearer view of HLA diversity in the human population as a whole.

Keywords: HLA; alleles; ethnic groups; gene frequency.

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Conflict of interest statement

Hurley has been a histocompatibility advisor for the NMDP. Georgetown University has filed a patent application on which Hurley is an inventor of the HLA typing and Sanger‐based sequencing technology.

Figures

Figure 1
Figure 1
Distribution of HLA alleles into three frequency categories (common, intermediate, well‐documented) at P group (two‐field) resolution
Figure 2
Figure 2
Distribution of HLA alleles into three frequency categories at G group resolution
Figure 3
Figure 3
Distribution of nonexpressed HLA alleles into three frequency categories and 1‐4 occurrences at P group resolution

Comment in

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