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: 
   

A*02:20:01

 
Allele reported 16 time(s) and present in 9 population(s).

Population Phenotype
Frequency (%)
Allele
Frequency
(in_decimals)
Sample
Size
IMGT/HLA¹
Database
Distribution² Haplotype³
Association
Notesª
MEXMexico Guadalajara Mestizo pop 20.0100103See
BRABrazil Barra Mansa Rio State Black0.006873See
LBYLibya Cyrenaica0.0040118See
MNGMongolia Buryat0.0040141See
USAUSA Mexican American Mestizo0.0020553See
ENGEngland North West0.30.0020298See
BRABrazil Rio de Janeiro Caucasian0.0019521See
BRABrazil Barra Mansa Rio State Caucasian0.0012405See
USAUSA African American pop 30.0010564See
BGRBulgaria0.000055See
USAUSA Caucasian0.00.000061655See
USAUSA San Antonio Caucasian0.0000222See
MARMorocco Settat Chaouya0.00.000098See
MARMorocco Nador Metalsa pop 20.000073See
KORSouth Korea pop 30.0000485See
CHNChina North Han0.0000105See

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


Allele  Number of Populations 
  A*02440 
  A*02:2098 

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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