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: 
   

C*18

 
Allele reported 71 time(s) and present in 34 population(s).

Population Phenotype
Frequency (%)
Allele
Frequency
(in_decimals)
Sample
Size
IMGT/HLA¹
Database
Distribution² Haplotype³
Association
Notesª
CMRCameroon Ewondo0.079038See
GNQEquatorial Guinea Bioko Island Bubi0.0250100See
SENSenegal Niokholo Mandenka0.0250165See
VENVenezuela Zulia Maracaibo Mixed0.025020See
VENVenezuela Zulia San Jose de Heras Mixed0.025020See
NGANigeria4.30.0213258See
VENVenezuela Valencia and Maracaibo Caracus Mixed0.021096See
RWARwanda0.0140280See
CMRCameroon Bamileke 20.014035See
POLPoland North2.50.012580See
MEXMexico Mexico City Mestizo pop 30.0120256See
ENGEngland North West Mixed pop 21.90.0092379See
ALBAlbanian Kosovo0.0083120See
SAUSaudi Arabia pop 41.00.0051499See
ITAItaly Rome1.00.0050100See
BRABrazil Pernambuco Mixed0.0050101See
ARGArgentina La Plata1.00.0040100See
SRBSerbia0.0040386See
SRBSerbia pop 30.60.00321992See
ARGArgentina Buenos Aires0.60.0030466See
BRABrazil Parana Japanese1.00.0026192See
CHESwitzerland Graubunden0.0024759See
ENGEngland London Ashkenazi Jews0.0010500See
ESPSpain Galicia and Murcia0.20.0010473See
FRAFrance Grenoble0.20.00101000See
WALWales pop 20.00.001039979See
RUSRussia Moscow0.00102650See
ITAItaly North Pavia pop 30.0009685See
PRTPortugal North pop 20.00081801See
GRCGreece pop 70.000711250See
FRAFrance Bordeaux0.10.0005990See
ENGEngland Sheffield0.10.00054755See
FRAFrance Lyon0.10.00044813See
NORNorway ethnic Norwegians0.10.00034510See
POLPoland Wroclaw0.00.0000123See
MKDMacedonia pop 40.0000216See
MYSMalaysia Perak and Johor Banjar Bugis Jawa0.000094See
MYSMalaysia Negeri Sembilan Minangkabau0.000034See
MYSMalaysia Perak Rawa0.000023See
ITAItaly North pop 30.00.000097See
ITAItaly Bergamo0.00.0000101See
ROMRomania pop 20.00006936See
RUSRussia Arkhangelsk Pomor0.000063See
RUSRussia Murmansk Saomi Mixed0.000070See
RUSRussia Northwest pop 30.00.0000100See
USAUSA South Texas Hispanic0.0000194See
USAUSA African American Bethesda0.00.0000187See
FRAFrance West0.00.0000100See
FRAFrance Grenoble, Nantes and Rennes0.00006094See
CMRCameroon Uldeme0.000035See
CMRCameroon Podokwo0.000043See
CZECzech Republic0.0000106See
ESPSpain Majorca0.0000407See
ESPSpain Minorca0.000094See
ESPSpain Ibiza0.000088See
ESPSpain Majorcans Jews0.0000103See
ESPSpain Murcia0.00.0000173See
CHESwitzerland Lugano0.00001169See
CHESwitzerland Lausanne0.0000993See
CHESwitzerland Luzern0.00001553See
CHESwitzerland St Gallen0.00002113See
CHESwitzerland Geneva0.000080See
CHNChina North Han0.0000105See
CHNChina Inner Mongolia Region0.0000102See
CHNChina Qinghai Province Hui0.0000110See
CHESwitzerland Aargau-Solothurn0.00001838See
CHESwitzerland Bern0.00003545See
CHESwitzerland Basel0.00001888See
CHESwitzerland Geneva pop 20.00001267See
CHESwitzerland Sion0.0000832See
CHESwitzerland Zurich0.00004875See

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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