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*40:23

 
Allele reported 36 time(s) and present in 20 population(s).

Population Phenotype
Frequency (%)
Allele
Frequency
(in_decimals)
Sample
Size
IMGT/HLA¹
Database
Distribution² Haplotype³
Association
Notesª
SGPSingapore SGVP. Indian INS0.019086See
CHNChina Guangdong Province Meizhou Han0.0150100See
INDIndia North UCBB0.30.00175849See
INDIndia West UCBB0.30.00155829See
INDIndia Central UCBB0.20.00124204See
INDIndia Tamil Nadu0.00112492See
LKASri Lanka Colombo0.30.0010714See
USAUSA NMDP South Asian Indian0.0010185391See
USAUSA NMDP Southeast Asian0.000927978See
INDIndia South UCBB0.10.000711446See
INDIndia East UCBB0.10.00042403See
USAUSA Asian pop 20.00031772See
USAUSA NMDP Hawaiian or other Pacific Islander0.000011499See
SAUSaudi Arabia pop 6 (G)0.000028927See
USAUSA NMDP North American Amerindian0.000035791See
USAUSA NMDP Filipino0.000050614See
USAUSA NMDP Middle Eastern or North Coast of Africa0.000070890See
USAUSA NMDP Mexican or Chicano0.0000261235See
USAUSA NMDP African American pop 20.0000416581See
DEUGermany DKMS - German donors0.00003456066See
NLDNetherlands Leiden0.00001305See
SGPSingapore SGVP Chinese CHS0.000096See
SGPSingapore SGVP Malay MAS0.000089See
USAUSA Hispanic pop 20.00001999See
USAUSA African American pop 40.00002411See
BGRBulgaria0.000055See
USAUSA San Antonio Caucasian0.0000222See
USAUSA South Texas Hispanic0.0000194See
MARMorocco Settat Chaouya0.00.000098See
MARMorocco Nador Metalsa pop 20.000073See
USAUSA Caucasian Bethesda0.00.0000307See
USAUSA African American Bethesda0.00.0000187See
KORSouth Korea pop 30.0000485See
USAUSA Philadelphia Caucasian0.00.0000141See
CHNChina North Han0.0000105See
CHNChina Tibet Region Tibetan0.0000158See

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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