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*18:18
Allele reported 21 time(s) and present in 8 population(s).

Population		Phenotype Frequency (%)	Allele Frequency (in_decimals)		Sample Size	IMGT/HLA¹ Database	Distribution²	Haplotype³ Association	Notesª
	USA San Diego	0.3	0.0020		496	See
	Germany DKMS - Greece minority		0.0008		1894	See
	Malaysia Peninsular Malay	0.1	0.0005		951	See
	Germany DKMS - Italy minority		0.0004		1159	See
	Spain (Catalunya, Navarra, Extremadura, Aaragón, Cantabria,	0.0	0.0001		4335	See
	USA NMDP Middle Eastern or North Coast of Africa		0.0001		70890	See
	Germany DKMS - German donors		0.0000		3456066	See
	USA NMDP European Caucasian		0.0000		1242890	See
	Netherlands Leiden		0.0000		1305	See
	Germany pop 8		0.0000		39689	See
	Bulgaria		0.0000		55	See
	USA San Antonio Caucasian		0.0000		222	See
	USA South Texas Hispanic		0.0000		194	See
	Morocco Settat Chaouya	0.0	0.0000		98	See
	USA Caucasian Bethesda	0.0	0.0000		307	See
	USA African American Bethesda	0.0	0.0000		187	See
	USA Philadelphia Caucasian	0.0	0.0000		141	See
	China North Han		0.0000		105	See
	China Tibet Region Tibetan		0.0000		158	See
	Germany pop 6		0.0001		8862	See
	Poland DKMS		0.0000		20653	See

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.