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*40:50

 
Allele reported 24 time(s) and present in 18 population(s).

Population Phenotype
Frequency (%)
Allele
Frequency
(in_decimals)
Sample
Size
IMGT/HLA¹
Database
Distribution² Haplotype³
Association
Notesª
CHNChina Tibet Region Tibetan0.0030158See
INDIndia Karnataka Kannada Speaking0.60.0030174See
LKASri Lanka Colombo0.30.0010714See
INDIndia East UCBB0.20.00082403See
INDIndia West UCBB0.10.00075829See
INDIndia North UCBB0.10.00045849See
INDIndia South UCBB0.10.000411446See
USAUSA NMDP South Asian Indian0.0003185391See
INDIndia Tamil Nadu0.00022492See
USAUSA Asian pop 20.00031772See
JPNJapan pop 160.000218604See
SAUSaudi Arabia pop 6 (G)0.000128927See
KORSouth Korea pop 100.00014128See
USAUSA NMDP Southeast Asian0.000127978See
USAUSA NMDP Hawaiian or other Pacific Islander0.000011499See
USAUSA NMDP Middle Eastern or North Coast of Africa0.000070890See
DEUGermany DKMS - German donors0.00003456066See
USAUSA NMDP African American pop 20.0000416581See
USAUSA Hispanic pop 20.00001999See
USAUSA African American pop 40.00002411See
MARMorocco Settat Chaouya0.00.000098See
USAUSA Philadelphia Caucasian0.00.0000141See
CHNChina North Han0.0000105See
NLDNetherlands Leiden0.00001305See

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


Allele  Number of Populations 
  B*40337 

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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