Statistics

The numbers below represent the number of named alleles for each gene. This number includes alleles which have been named but whose sequences is still held as confidential. This means that the number of sequences found in some files may differ to the numbers printed in this table. Details of which alleles are still confidential can be seen in the latest version report. The numbers below do not include the names of any deleted alleles, details of deleted alleles can be found in a separate report. 

Numbers of HLA Alleles
HLA Class I Alleles 7,353
HLA Class II Alleles 2,202
HLA Alleles 9,555
Other non-HLA Alleles 155
Number of Confidential Alleles 19
 
HLA Class I
Gene A B C E F G  
Alleles
2,365
3,015
1,848
13
22
50
 
Proteins
1,695
2,277
1,321
5
4
16
 
Nulls
113
98
49
0
0
2
 
HLA Class I - Pseudogenes
Gene H J K L P T U V W X
Alleles
12
9
6
5
5
0
0
3
0
0
Proteins
0
0
0
0
0
0
0
0
0
0
Nulls
0
0
0
0
0
0
0
0
0
0
HLA Class II
Gene DRA DRB DQA1 DQB1 DPA1 DPB1 DMA DMB DOA DOB
Alleles
7
1,456
51
416
37
190
7
13
12
13
Proteins
2
1,076
32
277
19
147
4
7
3
5
Nulls
0
33
1
10
0
6
0
0
1
0
HLA Class II - DRB Alleles
Gene DRB1 DRB2 DRB3 DRB4 DRB5 DRB6 DRB7 DRB8 DRB9  
Alleles
1,355
1
58
15
20
3
2
1
1
 
Proteins
1,005
0
46
8
17
0
0
0
0
 
Nulls
27
0
1
3
2
0
0
0
0
 
Other non-HLA Genes
Gene MICA MICB TAP1 TAP2  
Alleles
91
40
12
12
 
Proteins
71
26
6
5
 
Nulls
2
2
1
0
 
 
Component Information
Number of Component Entries (EMBL/GenBank/DDBJ) 20,240
Number of Source Cells/Individuals 17,712

Database Growth
Release Month Alleles Component Entries
1.0
1998-12
964
1,853
1.1
1999-04
980
2,038
1.3
1999-08
1,007
2,257
1.4
1999-10
1,015
2,275
1.5
2000-01
1,116
2,444
1.6
2000-04
1,156
2,566
1.7
2000-07
1,220
2,620
1.8
2000-10
1,257
2,976
1.9
2001-01
1,341
3,028
1.10
2001-04
1,390
3,349
1.11
2001-07
1,437
3,349
1.12
2001-10
1,467
3,558
1.13
2002-01
1,496
3,572
1.14
2002-04
1,519
3,634
1.15
2002-07
1,546
3,734
1.16
2002-09
1,588
3,868
2.0
2003-01
1,620
3,956
2.1
2003-04
1,646
4,029
2.2
2003-07
1,695
4,139
2.3
2003-10
1,738
4,238
2.4
2004-01
1,777
4,331
2.5
2004-04
1,814
4,405
2.6
2004-07
1,883
4,519
2.7
2004-10
1,935
4,666
2.8
2005-01
1,972
4,768
2.9
2005-04
2,076
4,949
2.10
2005-07
2,182
5,224
2.11
2005-10
2,280
5,510
2.12
2006-01
2,337
5,585
2.13
2006-04
2,429
5,598
2.14
2006-07
2,533
5,753
2.15
2006-10
2,607
5,849
2.16
2007-01
2,683
5,957
2.17
2007-04
2,816
6,139
2.18
2007-07
2,901
6,246
2.19
2007-10
3,043
6,430
2.20
2008-01
3,095
6,506
2.21
2008-04
3,187
6,693
2.22
2008-07
3,201
6,840
2.23
2008-10
3,410
7,028
2.24
2009-01
3,477
7,122
2.25
2009-04
3,635
7,585
2.26
2009-07
3,864
7,940
2.27
2009-10
4,161
9,115
2.28
2010-01
4,556
9,819
3.0
2010-04
4,743
10,245
3.1
2010-07
5,302
11,144
3.2
2010-10
5,788
11,914
3.3
2011-01
6,189
12,618
3.4
2011-04
6,534
13,381
3.5
2011-07
6,944
14,497
3.6
2011-10
7,196
15,187
3.7
2012-01
7,269
16,745
3.8
2012-04
7,670
17,261
3.9
2012-07
8,159
17,832
3.10
2012-10
8,644
18,407
3.11
2013-01
8,949
19,086
3.12
2013-04
9,310
19,659
3.13
2013-07
9,564
20,240

IMGT/HLA

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