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*42:01:01

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

Population Phenotype
Frequency (%)
Allele
Frequency
(in_decimals)
Sample
Size
IMGT/HLA¹
Database
Distribution² Haplotype³
Association
Notesª
ZAFSouth African Black14.80.0739142See
CRICosta Rica African -Caribbean (G)12.80.0640102See
BRABrazil Rio de Janeiro Black0.052268See
ZAFSouth African Mixed ancestry10.00.050050See
BRABrazil Barra Mansa Rio State Black0.047973See
BRABrazil Rio de Janeiro Parda0.0147170See
CRICosta Rica Guanacaste Mestizo (G)2.80.0140110See
BRABrazil Rio de Janeiro Caucasian0.0096521See
BRABrazil Barra Mansa Rio State Caucasian0.0086405See
LBYLibya Cyrenaica0.0040118See
SAUSaudi Arabia pop 50.60.0032158See
NICNicaragua Mestizo (G)0.60.0030155See
CRICosta Rica Central Valley Mestizo (G)0.40.0020221See
USAUSA Arizona Gila River Pima0.00053000See
RUSRussia Nizhny Novgorod, Russians0.10.00031510See
POLPoland BMR0.00.000223595See

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


Allele  Number of Populations 
  B*42309 
  B*42:01171 

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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