Allele Frequencies in World Populations

HLA Database Allele Report

The list below shows all populations in AFND that contains the allele. If an allele has an entry with a lower resolution this will be shown at the end.

Allele: 
   

DQA1*04

 
Allele reported 20 time(s) and present in 19 population(s).

Population Phenotype
Frequency (%)
Allele
Frequency
(in_decimals)
Sample
Size
IMGT/HLA¹
Database
Distribution² Haplotype³
Association
Notesª
BRABrazil Kaingang0.5120235See
BRABrazil Guarani Kaiowa0.2230155See
BRABrazil Guarani Nandeva0.215086See
ARGArgentina Rosario Toba33.70.174086See
BRABrazil Guarani M bya0.129093See
MEXMexico Tapachula, Chiapas Mestizo Population19.40.104272See
BRABrazil North East Mixed0.0740205See
TTOTrinidad African0.060067See
RUSRussia South Ural Russian6.30.0350207See
ENGEngland4.40.0222537See
RUSRussia, South Ural, Chelyabinsk region, Nagaybaks4.50.0220112See
RUSRussia South Ural Bashkir4.10.0210146See
ESPSpain, Castilla y Leon, Northwest,4.30.02071743See
GBRUnited Kingdom pop 20.0150101See
USAUSA Hawaii0.013039See
RUSRussia South Ural Tatar2.20.0110135See
TURTurkey Ankara0.010050See
GRCGreece2.00.010048See
BRABrazil Sao Paulo Mixed0.50.0020239See
TTOTrinidad South Asian0.000087See

Frequency data at lower resolution for this allele can be found in links below


Allele  Number of Populations 

Notes:

* Allele Frequency: Total number of copies of the allele in the population sample (Alleles / 2n) in decimal format.
   Important: This field has been expanded to four decimals to better represent frequencies of large datasets (e.g. where sample size > 1000 individuals)
* Phenotype Frequency: Percentage of individuals who have the allele or gene (Individuals / n).
* Allele Frequencies shown in green were calculated from Phenotype Frequencies assuming Hardy-Weinberg proportions.

¹ IMGT/HLA Database - For more details of the allele.
² Distribution - Graphical distribution of the allele.
³ Haplotype Association - Find HLA haplotypes with this allele.
ª Notes - See notes for ambiguous combinations of alleles.




Allele frequency net database (AFND) 2020 update: gold-standard data classification, open access genotype data and new query tools
Gonzalez-Galarza FF, McCabe A, Santos EJ, Jones J, Takeshita LY, Ortega-Rivera ND, Del Cid-Pavon GM, Ramsbottom K, Ghattaoraya GS, Alfirevic A, Middleton D and Jones AR Nucleic Acid Research 2020, 48:D783-8.
Liverpool, U.K.

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