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*41:01:01
Allele reported 18 time(s) and present in 18 population(s).

Population		Phenotype Frequency (%)	Allele Frequency (in_decimals)		Sample Size	IMGT/HLA¹ Database	Distribution²	Haplotype³ Association	Notesª
	South African Mixed ancestry	4.0	0.0200		50	See
	Brazil Rio de Janeiro Caucasian		0.0182		521	See
	South African Black	3.5	0.0176		142	See
	Brazil Barra Mansa Rio State Caucasian		0.0111		405	See
	South African Indian population	2.0	0.0100		50	See
	Greece Athens	1.7	0.0085		1888	See
	Russia Bashkortostan, Tatars	1.6	0.0078		192	See
	Brazil Rio de Janeiro Black		0.0075		68	See
	Brazil Barra Mansa Rio State Black		0.0068		73	See
	Poland BMR	1.1	0.0057		23595	See
	Russia Nizhny Novgorod, Russians	1.1	0.0056		1510	See
	Russian Federation Vologda Region	0.8	0.0042		119	See
	Russia Bashkortostan, Bashkirs	0.8	0.0042		120	See
	Russia Belgorod region	0.7	0.0033		153	See
	England Blood Donors of Mixed Ethnicity	0.4	0.0019		519	See
	India Kerala Malayalam speaking	0.3	0.0010		356	See
	USA Arizona Gila River Pima		0.0008		3000	See
	China Zhejiang Han		0.0003		1734	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.