Table showing the number of alleles, proteins and nulls in the
IPD-IMGT/HLA Database named as of September 2025.
Numbers of HLA Alleles |
HLA class I alleles |
29475
|
HLA class II alleles |
13521
|
HLA alleles |
42996
|
Other non-HLA alleles |
1032
|
Number of confidential alleles |
0 |
HLA class I |
Gene |
A |
B |
C |
E |
F |
G |
Alleles |
8949 |
10680 |
8944 |
385 |
126 |
194 |
Proteins |
5229 |
6358 |
4934 |
144 |
28 |
61 |
Nulls |
476 |
386 |
412 |
10 |
3 |
6 |
HLA class I - Pseudogenes |
Gene |
H |
J |
K |
L |
N |
P |
R |
S |
T |
U |
V |
W |
Y |
Alleles |
96 |
33 |
7 |
6 |
5 |
5 |
2 |
7 |
9 |
7 |
4 |
13 |
3 |
Proteins |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Nulls |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
HLA class II |
Gene |
DRA |
DRB |
DQA1 |
DQA2 |
DQB1 |
DQB2 |
DPA1 |
DPA2 |
DPB1 |
DPB2 |
DMA |
DMB |
DOA |
DOB |
Alleles |
127 |
5137 |
966 |
42 |
2924 |
41 |
877 |
6 |
2911 |
7 |
89 |
138 |
147 |
109 |
Proteins |
19 |
3328 |
472 |
11 |
1736 |
9 |
397 |
0 |
1670 |
0 |
10 |
9 |
17 |
20 |
Nulls |
0 |
236 |
24 |
0 |
126 |
1 |
35 |
0 |
151 |
0 |
0 |
0 |
1 |
1 |
HLA class II - DRB Alleles |
Gene |
DRB1 |
DRB2 |
DRB3 |
DRB4 |
DRB5 |
DRB6 |
DRB7 |
DRB8 |
DRB9 |
Alleles |
3892 |
1 |
645 |
335 |
251 |
4 |
2 |
1 |
6 |
Proteins |
2523 |
0 |
441 |
192 |
172 |
0 |
0 |
0 |
0 |
Nulls |
140 |
0 |
32 |
35 |
29 |
0 |
0 |
0 |
0 |
Other non-HLA Genes |
Gene |
HFE |
MICA |
MICB |
TAP1 |
TAP2 |
Alleles |
6 |
589 |
312 |
19 |
106 |
Proteins |
4 |
279 |
53 |
11 |
13 |
Nulls |
0 |
9 |
25 |
1 |
0 |
Last updated: 08-Oct-2025