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: 
   

B*18:01:01

 
Allele reported 36 time(s) and present in 35 population(s).

Population Phenotype
Frequency (%)
Allele
Frequency
(in_decimals)
Sample
Size
IMGT/HLA¹
Database
Distribution² Haplotype³
Association
Notesª
POLPoland BMR14.00.072723595See
ZAFSouth African Mixed ancestry14.00.070050See
IDNIndonesia Sundanese and Javanese0.0700201See
ESPSpain, Canary Islands, Gran canaria island12.10.0628215See
PRTMadeira0.0620185See
USAUSA Eastern European0.0550558See
MEXMexico Guadalajara Mestizo pop 20.0530103See
MARMorocco Nador Metalsa pop 20.051073See
ZAFSouth Africa Caucasians0.0510102See
USAUSA Italy Ancestry0.0510273See
USAUSA Mexican American Mestizo0.0460553See
CRICosta Rica Guanacaste Mestizo (G)9.20.0460110See
CRICosta Rica Central Valley Mestizo (G)9.00.0450221See
USAUSA San Francisco Caucasian0.0410220See
CPVCape Verde Northwestern Islands0.040062See
USAUSA Spain Ancestry0.0390279See
GNBGuinea Bissau0.038065See
USAUSA African American pop 30.0330564See
CPVCape Verde Southeastern Islands0.032062See
ZAFSouth African Black6.30.0317142See
CHNChina Jingpo Minority6.00.0300109See
INDIndia Karnataka Kannada Speaking5.70.0290174See
IDNIndonesia Java pop 20.028036See
ENGEngland Blood Donors of Mixed Ethnicity5.40.0270519See
CRICosta Rica African -Caribbean (G)5.00.0250102See
INDIndia Andhra Pradesh Telugu Speaking4.80.0242186See
NICNicaragua Mestizo (G)4.60.0230155See
LBYLibya Cyrenaica0.0210118See
INDIndia Kerala Malayalam speaking2.80.0150356See
SAUSaudi Arabia pop 52.50.0127158See
ZAFSouth African Indian population2.00.010050See
CRICosta Rica Amerindians (G)1.60.0080125See
MEXMexico Hidalgo Mezquital Valley/ Otomi1.40.006972See
USAUSA Arizona Gila River Pima0.00053000See
USAUSA NMDP Black South or Central American0.00004889See
CHNChina North Han0.0000105See

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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