Allele Frequencies in World Populations

HLA Database » Allele Report

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



Allele reported 161 time(s) and present in 129 population(s).

Population Phenotype
Frequency (%)
Distribution² Haplotype³
TUNTunisia Gabes0.057995See
BGRBulgaria Romani0.045013See
BRABrazil Belo Horizonte Caucasian5.30.026095See
ISRIsrael USSR Jews0.025645681See
HRVCroatia pop 40.02144000See
ISRIsrael Kavkazi Jews0.01952840See
DEUGermany DKMS - Croatia minority0.01952057See
DEUGermany DKMS - Bosnia and Herzegovina minority0.01951028See
CZECzech Republic0.0190106See
POLPoland DKMS0.019020653See
ISRIsrael USA Jews0.01826058See
ISRIsrael Ashkenazi Jews pop 30.01734625See
ISRIsrael Poland Jews0.017213871See
DEUGermany DKMS - Romania minority0.01541234See
ARMArmenia combined Regions0.0150100See
ESPSpain Andalusia Romani0.015099See
USAUSA Philadelphia Caucasian3.00.0150141See
ISRIsrael Argentina Jews0.01504307See
ISRIsrael Tunisia Jews0.01439070See
RUSRussia Karelia0.01401075See
ISRIsrael Arab pop 20.013312301See
ISRIsrael Libya Jews0.01283739See
GRCGreece pop 82.40.012183See
MEXMexico Mestizo2.40.012041See
DEUGermany DKMS - Greece minority0.01161894See
CZECzech Republic NMDR0.01105099See
TUNTunisia pop 30.0110104See
DEUGermany DKMS - Turkey minority0.01004856See
USAUSA Eastern European0.0100558See
ISRIsrael Iran Jews0.00958153See
GRCGreece pop 60.0094242See
DEUGermany DKMS - Austria minority0.00801698See
CPVCape Verde Northwestern Islands0.008062See
CPVCape Verde Southeastern Islands0.008062See
DEUGermany pop 80.007339689See
CHESwitzerland Lugano0.00721169See
DEUGermany DKMS - German donors0.00723456066See
CHESwitzerland Sion0.0071832See
CUBCuba Caucasian1.40.007070See
MARMorocco Settat Chaouya1.40.007098See
MARMorocco Nador Metalsa pop 20.007073See
MARMorocco Atlantic Coast Chaouya0.007098See
DEUGermany pop 60.00668862See
CHESwitzerland Bern0.00643545See
CHESwitzerland St Gallen0.00632113See
ITAItaly North Pavia0.006081See
ITAItaly pop 50.0060975See
DEUGermany DKMS - Portugal minority0.00601176See
USAUSA NMDP Middle Eastern or North Coast of Africa0.005970890See
CHESwitzerland Lausanne0.0054993See
ISRIsrael Iraq Jews0.005213270See
GEOGeorgia Tibilisi0.0050109See
USAUSA San Francisco Caucasian0.0050220See
SRBSerbia pop 21.00.0050102See
USAUSA San Diego1.00.0050496See
SDNSudan Mixed1.00.0050200See
MEXMexico Guadalajara Mestizo pop 20.0050103See
USAUSA European American pop 20.00501245See
ZAFSouth Africa Caucasians0.0050102See
DEUGermany DKMS - United Kingdom minority0.00481043See
DEUGermany DKMS - France minority0.00461406See
CHESwitzerland Graubunden0.0041759See
IRLIreland South0.80.0040250See
LBYLibya Cyrenaica0.0040118See
USAUSA Alaska Yupik0.0040252See
USAUSA Italy Ancestry0.0040273See
USAUSA Caucasian Bethesda0.80.0040307See
USAUSA NMDP European Caucasian0.00391242890See
CHESwitzerland Luzern0.00371553See
SAUSaudi Arabia pop 6 (G)0.003528927See
USAUSA NMDP Caribean Hispanic0.0035115374See
CHESwitzerland Basel0.00341888See
CHESwitzerland Zurich0.00334875See
ESPSpain (Catalunya, Navarra, Extremadura, Aaragón, Cantabria,0.70.00334335See
DEUGermany DKMS - Netherlands minority0.00331374See
SAUSaudi Arabia pop 50.60.0032158See
RUSRussia Tuva pop 20.0030169See
NLDNetherlands Leiden0.00301305See
DEUGermany DKMS - Italy minority0.00301159See
CHNChina Tibet Region Tibetan0.0030158See
USAUSA Caucasian pop 40.00281070See
USAUSA NMDP North American Amerindian0.002835791See
DEUGermany DKMS - Spain minority0.00271107See
USAUSA Hispanic pop 20.00281999See
COLColombia Bogotá Cord Blood0.50.00241463See
USAUSA NMDP American Indian South or Central America0.00205926See
USAUSA NMDP Caribean Indian0.002014339See
USAUSA Spain Ancestry0.0020279See
USAUSA Caucasian pop 20.0020265See
USAUSA NMDP Mexican or Chicano0.0019261235See
USAUSA NMDP Hispanic South or Central American0.0019146714See
CHESwitzerland Geneva pop 20.00171267See
ISRIsrael Bukhara Jews0.00152317See
INDIndia Tamil Nadu0.00142492See
DEUGermany DKMS - China minority0.00121282See
ISRIsrael Druze0.00105914See
USAUSA NMDP Alaska Native or Aleut0.00101376See
NIRIreland Northern0.20.00101000See
LKASri Lanka Colombo0.30.0010714See
USAUSA Mexican American Mestizo0.0010553See
ISRIsrael Morocco Jews0.001036718See
USAUSA NMDP Southeast Asian0.000927978See
ISRIsrael YemenJews0.000915542See
USAUSA NMDP South Asian Indian0.0008185391See
USAUSA NMDP African0.000528557See
USAUSA NMDP Caribean Black0.000433328See
USAUSA African American pop 40.00042411See
USAUSA NMDP Hawaiian or other Pacific Islander0.000411499See
USAUSA NMDP African American pop 20.0004416581See
ISRIsrael Ethiopia Jews0.00035928See
ISRIsrael Georgia Jews0.00034471See
CHNChina Hubei Han0.10.00033732See
USAUSA Asian pop 20.00031772See
USAUSA NMDP Japanese0.000224582See
USAUSA NMDP Filipino0.000150614See
INDIndia UCBB_Central Indian HLA0.00.00014204See
USAUSA NMDP Chinese0.000199672See
USAUSA NMDP Korean0.000177584See
USAUSA NMDP Vietnamese0.000043540See
USAUSA African American0.0000252See
USAUSA Hispanic0.0000234See
SGPSingapore Chinese0.00.0000149See
USAUSA African American pop 80.0000605See
PHLPhilippines Ivatan0.00.000050See
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 Pazeh0.00.000055See
TWNTaiwan Siraya0.00.000051See
TWNTaiwan Thao0.00.000030See
TWNTaiwan Tsou0.00.000051See
TWNTaiwan Rukai0.00.000050See
TWNTaiwan Paiwan0.00.000051See
TWNTaiwan Ami0.00.000098See
TWNTaiwan Puyuma0.00.000050See
TWNTaiwan Tao0.00.000050See
USAUSA San Antonio Caucasian0.0000222See
USAUSA South Texas Hispanic0.0000194See
HKGHong Kong Chinese0.00.0000569See
GNBGuinea Bissau0.000065See
KORSouth Korea pop 30.0000485See
CHNChina North Han0.0000105See
CHESwitzerland Aargau-Solothurn0.00001838See
CUBCuba Mixed Race0.00.000042See
USAUSA North American Native0.0000187See
USAUSA Asian0.0000358See
USAUSA African American Bethesda0.00.0000187See
ZAFSouth Africa Natal Zulu0.00.0000100See

See also higher resolution data of this allele

Allele  Number of Populations 
 B*27:02:01 17 

* This list corresponds to those alleles that have been reported in AFND only (i.e. only positive findings).


* 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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