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*27:27

 
Allele reported 11 time(s) and present in 8 population(s).

Population Phenotype
Frequency (%)
Allele
Frequency
(in_decimals)
Sample
Size
IMGT/HLA¹
Database
Distribution² Haplotype³
Association
Notesª
ISRIsrael Ashkenazi Jews pop 30.00014625See
ISRIsrael Libya Jews0.00003739See
ISRIsrael Tunisia Jews0.00009070See
USAUSA NMDP Mexican or Chicano0.0000261235See
USAUSA NMDP Hispanic South or Central American0.0000146714See
ISRIsrael USSR Jews0.000045681See
USAUSA NMDP Caribean Hispanic0.0000115374See
USAUSA NMDP European Caucasian0.00001242890See
MARMorocco Settat Chaouya0.00.000098See
CHNChina Tibet Region Tibetan0.0000158See
NLDNetherlands Leiden0.00001305See

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


Allele  Number of Populations 
  B*27428 

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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