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
	Singapore SGVP. Indian INS		0.0190		86	See
	China Guangdong Province Meizhou Han		0.0150		100	See
	India North UCBB	0.3	0.0017		5849	See
	India West UCBB	0.3	0.0015		5829	See
	India Central UCBB	0.2	0.0012		4204	See
	India Tamil Nadu		0.0011		2492	See
	Sri Lanka Colombo	0.3	0.0010		714	See
	USA NMDP South Asian Indian		0.0010		185391	See
	USA NMDP Southeast Asian		0.0009		27978	See
	India South UCBB	0.1	0.0007		11446	See
	India East UCBB	0.1	0.0004		2403	See
	USA Asian pop 2		0.0003		1772	See
	USA NMDP Hawaiian or other Pacific Islander		0.0000		11499	See
	Saudi Arabia pop 6 (G)		0.0000		28927	See
	USA NMDP North American Amerindian		0.0000		35791	See
	USA NMDP Filipino		0.0000		50614	See
	USA NMDP Middle Eastern or North Coast of Africa		0.0000		70890	See
	USA NMDP Mexican or Chicano		0.0000		261235	See
	USA NMDP African American pop 2		0.0000		416581	See
	Germany DKMS - German donors		0.0000		3456066	See
	Netherlands Leiden		0.0000		1305	See
	Singapore SGVP Chinese CHS		0.0000		96	See
	Singapore SGVP Malay MAS		0.0000		89	See
	USA Hispanic pop 2		0.0000		1999	See
	USA African American pop 4		0.0000		2411	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
	Morocco Nador Metalsa pop 2		0.0000		73	See
	USA Caucasian Bethesda	0.0	0.0000		307	See
	USA African American Bethesda	0.0	0.0000		187	See
	South Korea pop 3		0.0000		485	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

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.