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 20 time(s) and present in 14 population(s).

Population		Phenotype Frequency (%)	Allele Frequency (in_decimals)		Sample Size	IMGT/HLA¹ Database	Distribution²	Haplotype³ Association	Notesª
	China Tibet Region Tibetan		0.0030		158	See
	India Karnataka Kannada Speaking	0.6	0.0030		174	See
	Sri Lanka Colombo	0.3	0.0010		714	See
	USA NMDP South Asian Indian		0.0003		185391	See
	India Tamil Nadu		0.0002		2492	See
	USA Asian pop 2		0.0003		1772	See
	Japan pop 16		0.0002		18604	See
	Saudi Arabia pop 6 (G)		0.0001		28927	See
	South Korea pop 10		0.0001		4128	See
	USA NMDP Southeast Asian		0.0001		27978	See
	USA NMDP Hawaiian or other Pacific Islander		0.0000		11499	See
	USA NMDP Middle Eastern or North Coast of Africa		0.0000		70890	See
	Germany DKMS - German donors		0.0000		3456066	See
	USA NMDP African American pop 2		0.0000		416581	See
	USA Hispanic pop 2		0.0000		1999	See
	USA African American pop 4		0.0000		2411	See
	Morocco Settat Chaouya	0.0	0.0000		98	See
	USA Philadelphia Caucasian	0.0	0.0000		141	See
	China North Han		0.0000		105	See
	Netherlands Leiden		0.0000		1305	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.