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

 
Allele reported 93 time(s) and present in 39 population(s).

Population Phenotype
Frequency (%)
Allele
Frequency
(in_decimals)
Sample
Size
IMGT/HLA¹
Database
Distribution² Haplotype³
Association
Notesª
CHNChina Uyghur HIV negative0.026019See
PRTPortugal Center0.010050See
GNBGuinea Bissau Balanta0.010048See
ECUEcuador Amerindians0.007963See
GEOGeorgia Svaneti Region Svan0.006080See
INDIndia Andhra Pradesh Golla0.0060111See
BRABrazil Mixed0.0050108See
GEOGeorgia Tibilisi0.0050109See
PAKPakistan Mixed Pathan0.0050100See
NLDNetherlands Leiden0.00301305See
DEUGermany DKMS - Portugal minority0.00301176See
USAUSA NMDP Caribean Hispanic0.0027115374See
CHNChina Beijing Shijiazhuang Tianjian Han0.0020618See
USAUSA Hispanic pop 20.00151999See
USAUSA NMDP South Asian Indian0.0011185391See
ITAItaly pop 50.0010975See
USAUSA NMDP Southeast Asian0.000927978See
DEUGermany DKMS - Turkey minority0.00074856See
DEUGermany DKMS - Greece minority0.00081894See
USAUSA Asian pop 20.00061772See
DEUGermany DKMS - Spain minority0.00051107See
USAUSA NMDP Hispanic South or Central American0.0003146714See
DEUGermany DKMS - Netherlands minority0.00041374See
USAUSA NMDP Middle Eastern or North Coast of Africa0.000270890See
USAUSA African American pop 40.00022411See
USAUSA NMDP Mexican or Chicano0.0002261235See
USAUSA NMDP European Caucasian0.00011242890See
DEUGermany pop 60.00018862See
DEUGermany pop 80.000139689See
USAUSA NMDP Japanese0.000124582See
ISRIsrael USA Jews0.00016058See
USAUSA NMDP Filipino0.000150614See
USAUSA NMDP North American Amerindian0.000135791See
USAUSA NMDP Vietnamese0.000143540See
USAUSA NMDP African0.000028557See
USAUSA NMDP Korean0.000077584See
USAUSA NMDP Caribean Black0.000033328See
USAUSA NMDP Chinese0.000099672See
USAUSA NMDP African American pop 20.0000416581See
PAKPakistan Mixed Sindhi0.0000101See
PRTPortugal South0.000049See
HKGHong Kong Chinese0.00.0000569See
HRVCroatia0.0000150See
ITAItaly North pop 30.00.000097See
ITAItaly Bergamo0.00.0000101See
USAUSA Caucasian0.00.000061655See
USAUSA San Antonio Caucasian0.0000222See
USAUSA South Texas Hispanic0.0000194See
USAUSA Alaska Yupik0.0000252See
CZECzech Republic0.0000106See
PAKPakistan Baloch0.000066See
PAKPakistan Brahui0.0000104See
PAKPakistan Burusho0.000092See
PAKPakistan Kalash0.000069See
TWNTaiwan Minnan pop 10.00.0000102See
TWNTaiwan Hakka0.00.000055See
TWNTaiwan Atayal0.00.0000106See
TWNTaiwan Taroko0.00.000055See
TWNTaiwan Saisiat0.00.000051See
TWNTaiwan Bunun0.00.0000101See
TWNTaiwan Tsou0.00.000051See
TWNTaiwan Rukai0.00.000050See
TWNTaiwan Paiwan0.00.000051See
TWNTaiwan Ami0.00.000098See
TWNTaiwan Puyuma0.00.000050See
TWNTaiwan Tao0.00.000050See
TWNTaiwan Pazeh0.00.000055See
TWNTaiwan Siraya0.00.000051See
TWNTaiwan Thao0.00.000030See
PHLPhilippines Ivatan0.00.000050See
BRABrazil Belo Horizonte Caucasian0.00.000095See
CUBCuba Mulatto0.00.000042See
CUBCuba Caucasian0.00.000070See
MEXMexico Mestizo0.00.000041See
OMNOman0.00.0000118See
SGPSingapore Chinese0.00.0000149See
ZAFSouth Africa Natal Zulu0.00.0000100See
NIRIreland Northern0.00.00001000See
PRTPortugal North0.000046See
MARMorocco Settat Chaouya0.00.000098See
MARMorocco Nador Metalsa pop 20.000073See
ROMRomania0.00.0000348See
USAUSA Caucasian Bethesda0.00.0000307See
USAUSA African American Bethesda0.00.0000187See
TURTurkey pop 50.0000142See
USAUSA Caucasian pop 40.00001070See
GNBGuinea Bissau Bijago0.000023See
GNBGuinea Bissau Fula0.000031See
GNBGuinea Bissau Papel0.000025See
CHNChina Tibet Region Tibetan0.0000158See
USAUSA Philadelphia Caucasian0.00.0000141See
CHNChina North Han0.0000105See
PAKPakistan Karachi Parsi0.000091See

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 2015 update: new features for HLA epitopes, KIR and disease and HLA adverse drug reaction associations.
Gonzalez-Galarza FF, Takeshita LY, Santos EJ, Kempson F, Maia MH, Silva AL, Silva AL, Ghattaoraya GS, Alfirevic A, Jones AR and Middleton D Nucleic Acid Research 2015, 39, 28, D784-8.
Liverpool, U.K.

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