major histocompatibility complex, class II, DR15 | |
Haplotypes groups | DRA*01:DRB1*1501 - to - DRA*01:DRB1*1505 DRA*01:DRB1*1507 |
Structure (See HLA-DR) | |
Identifiers | alpha *0101 |
Symbol(s) | HLA-DRA [ permanent dead link ] |
EBI-HLA | DRA*0101 |
Identifiers | beta 1 *1501 to *1505*1507 |
Symbol(s) | HLA-DRB1 [ permanent dead link ] |
EBI-HLA | DRB1*1501 |
EBI-HLA | DRB1*1502 |
EBI-HLA | DRB1*1503 |
EBI-HLA | DRB1*1504 |
EBI-HLA | DRB1*1505 |
EBI-HLA | DRB1*1507 |
Shared data | |
Locus | chr.6 6p21.31 |
HLA-DR15 (DR15) is a HLA-DR serotype that recognizes the DRB1*1501 to *1505 and *1507 gene products. DR15 is found at high levels from Ireland to Central Asia. DR15 is part of the older HLA-DR2 serotype group which also contains the similar HLA-DR16 antigens.
DRB1* | DR15 | DR2 | DR16 | Sample |
allele | % | % | % | size (N) |
1501 | 76 | 23 | 6428 | |
1502 | 77 | 16 | 676 | |
1503 | 81 | 13 | 286 | |
1504 | >50 | 1 | ||
1505 | >25 | 2 | ||
1507 | >50 | 1 | ||
Serotypes are unknown for the following alleles: DRB1*1506, *1508 to *1516, *1518 to *1522. DRB1*1517N is a null.
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DR15 is positively associated Goodpasture syndrome, [2] early age onset multiple sclerosis, [3] pernicious anaemia, [4] sarcoidosis, [5] hypocretin deficiency associated narcolepsy [6] [7] and a predisposition for postmenopausal osteoporosis. [8]
DRB1*1501 is positively associated with Goodpasture syndrome, [9] [10] juvenile rheumatoid arthritis, [11] allergic bronchopulmonary aspergillosis, [12] multiple sclerosis, [13] systemic lupus erythematosus, [14] cervical cancer (human papillomavirus infection), [15] Sjögren syndrome associated with systemic lupus erythematosus, [16] and intermediate uveitis. [17]
DRB1*1502 is associated with systemic lupus erythematosus, [18] systemic sclerosis (SSc) & anti-topoisomerase antibodies. [19]
DRB1*1503 is associated with Chaga's cardiomyopathy, [20] allergic bronchopulmonary aspergillosis, [12] multiple sclerosis, [13] cervical cancer (human papillomavirus infection). [21]
DRB1*15:DQA1*0102:DQB1*0602 haplotype us associated with cervical cancer risk in (human papillomavirus infection) [21]
DRB1*1502:DQA1*????:DQB1*0501 haplotype is associated with systemic lupus erythematosus [18]
DR15 Haplotypes | |||
Serotypes | DRA | DRB1 | DRB5 |
---|---|---|---|
DR15(2)-DR51 | *0101 | *1501 | *0101 |
*0101 | *1502 | *0101 | |
*0101 | *1503 | *0101 | |
*0101 | *1504 | *0101 | |
*0101 | *1505 | *0101 | |
*0101 | *1507 | *0101 | |
DQA1 | DQB1 | DRB1 | |
DR15(2)-DQ6(6.2, 1) | *0102 | *0602 | *1501 |
DR15(2)-DQ6(6.1, 1) | *0103 | *0601 | *1502 |
HLA-A | HLA-B | DRB1 | |
A3-Cw7-B7-DR15(2) | *0301 | *0702 | *1501 |
A1-B51-DR15(2) | *0101 | *5101 | *1502 |
HLA-DR15 is genetically linked to HLA-DR51 and HLA-DQ6 (HLA-DQ1) serotypes.
The human leukocyte antigen (HLA) system or complex of genes on chromosome 6 in humans which encode cell-surface proteins responsible for regulation of the immune system. The HLA system is also known as the human version of the major histocompatibility complex (MHC) found in many animals.
HLA DR3-DQ2 is double serotype that specifically recognizes cells from individuals who carry a multigene HLA DR, DQ haplotype. Certain HLA DR and DQ genes have known involvement in autoimmune diseases. DR3-DQ2, a multigene haplotype, stands out in prominence because it is a factor in several prominent diseases, namely coeliac disease and juvenile diabetes. In coeliac disease, the DR3-DQ2 haplotype is associated with highest risk for disease in first degree relatives, highest risk is conferred by DQA1*0501:DQB1*0201 homozygotes and semihomozygotes of DQ2, and represents the overwhelming majority of risk. HLA DR3-DQ2 encodes DQ2.5cis isoform of HLA-DQ, this isoform is described frequently as 'the DQ2 isoform', but in actuality there are two major DQ2 isoform. The DQ2.5 isoform, however, is many times more frequently associated with autoimmune disease, and as a result to contribution of DQ2.2 is often ignored.
HLA-DQ2 (DQ2) is a serotype group within HLA-DQ (DQ) serotyping system. The serotype is determined by the antibody recognition of β2 subset of DQ β-chains. The β-chain of DQ is encoded by HLA-DQB1 locus and DQ2 are encoded by the HLA-DQB1*02 allele group. This group currently contains two common alleles, DQB1*0201 and DQB1*0202. HLA-DQ2 and HLA-DQB1*02 are almost synonymous in meaning. DQ2 β-chains combine with α-chains, encoded by genetically linked HLA-DQA1 alleles, to form the cis-haplotype isoforms. These isoforms, nicknamed DQ2.2 and DQ2.5, are also encoded by the DQA1*0201 and DQA1*0501 genes, respectively.
HLA-DQ4 (DQ4) is a serotype subgroup within HLA-DQ(DQ) serotypes. The serotype is determined by the antibody recognition of β4 subset of DQ β-chains. The β-chain of DQ is encoded by HLA-DQB1 locus and DQ4 are encoded by the HLA-DQB1*04 allele group. This group currently contains 2 common alleles, DQB1*0401 and DQB1*0402. HLA-DQ4 and HLA-DQB1*04 are almost synonymous in meaning. DQ4 β-chains combine with α-chains, encoded by genetically linked HLA-DQA1 alleles, to form the cis-haplotype isoforms. These isoforms, nicknamed DQ4.3 and DQ4.4, are also encoded by the DQA1*0303 and DQA1*0401 genes, respectively.
HLA-DQ6 (DQ6) is a human leukocyte antigen serotype within HLA-DQ (DQ) serotype group. The serotype is determined by the antibody recognition of β6 subset of DQ β-chains. The β-chain of DQ isoforms are encoded by HLA-DQB1 locus and DQ6 are encoded by the HLA-DQB1*06 allele group. This group currently contains many common alleles, DQB1*0602 is the most common. HLA-DQ6 and DQB1*06 are almost synonymous in meaning. DQ6 β-chains combine with α-chains, encoded by genetically linked HLA-DQA1 alleles, to form the cis-haplotype isoforms. For DQ6, however, cis-isoform pairing only occurs with DQ1 α-chains. There are many haplotypes of DQ6.
HLA-DQ7 (DQ7) is an HLA-DQ serotype that recognizes the common HLA DQB1*0301 and the less common HLA DQB1*0304 gene products. DQ7 is a form of 'split antigen' of the broad antigen group DQ3 which also contains DQ8 and DQ9.
HLA-DQ1 is a serotype that covers a broad range of HLA-DQ haplotypes. Historically it was identified as a DR-like alpha chain called DC1; later, it was among 3 types DQw1, DQw2 and DQw3. Of these three serotyping specificities only DQw1 recognized DQ alpha chain. The serotype is positive in individuals who bear the DQA1*01 alleles. The most frequently found within this group are: DQA1*0101, *0102, *0103, and *0104. In the illustration on the right, DQ1 serotyping antibodies recognizes the DQ α (magenta), where antibodies to DQA1* gene products bind variable regions close to the peptide binding pocket.
HLA-DR52 is an HLA-DR serotype that recognizes gene products of HLA-DRB3 locus. Three allele groups can produce 35 isoforms.
HLA-DR17 (DR17) is an HLA-DR serotype that recognizes the DRB1*0301 and *0304 gene products. DR17 is found at high frequency in Western Europe. DR17 is part of the broader antigen group HLA-DR3 and is very similar to the group HLA-DR18.
HLA-DR16(DR16) is a HLA-DR serotype that recognizes the DRB1*1601, *1602 and *1604 gene products. DR16 is found in the Mediterranean at modest frequencies. DR16 is part of the older HLA-DR2 serotype group which also contains the similar HLA-DR15 antigens.
HLA-DR11 (DR11) is a HLA-DR serotype that recognizes the DRB1*1101 to *1110. DR11 serotype is a split antigen of the older HLA-DR5 serotype group which also contains the similar HLA-DR12 antigens.
HLA-DR12(DR12) is a HLA-DR serotype that recognizes the DRB1*1201 to *1203, *1206. DR12 serotype is a split antigen of the older HLA-DR5 serotype group which also contains the similar HLA-DR11 antigens.
HLA-DR10 (DR10) is a HLA-DR serotype that recognizes the DRB1*1001 gene product.
HLA-DR2 (DR2) of the HLA-DR serotype system, is a broad antigen serotype that is now preferentially covered by HLA-DR15 and HLA-DR16 serotype group. This serotype primarily recognizes gene products of the HLA-DRB1*15 and HLA-DRB1*16 allele groups.
HLA-DR3 is composed of the HLA-DR17 and HLA-DR18 split 'antigens' serotypes. DR3 is a component gene-allele of the AH8.1 haplotype in Northern and Western Europeans. Genes between B8 and DR3 on this haplotype are frequently associated with autoimmune disease. Type 1 diabetes mellitus is associated with HLA-DR3 or HLA-DR4. Nearly half the US population has either DR3 or DR4, yet only a small percentage of these individuals will develop type 1 diabetes.
HLA-DR4 (DR4) is an HLA-DR serotype that recognizes the DRB1*04 gene products. The DR4 serogroup is large and has a number of moderate frequency alleles spread over large regions of the world.
In autoimmune disease, anti-apolipoprotein H (AAHA) antibodies, also called anti-β2 glycoprotein I antibodies, comprise a subset of anti-cardiolipin antibodies and lupus anticoagulant. These antibodies are involved in sclerosis and are strongly associated with thrombotic forms of lupus. As a result, AAHA are strongly implicated in autoimmune deep vein thrombosis.
HLA-A3 (A3) is a human leukocyte antigen serotype within HLA-A serotype group. The serotype is determined by the antibody recognition of α3 subset of HLA-A α-chains. For A3, the alpha, "A", chain are encoded by the HLA-A*03 allele group and the β-chain are encoded by B2M locus. This group currently is dominated by A*03:01. A3 and A*03 are almost synonymous in meaning. A3 is more common in Europe, it is part of the longest known multigene haplotype, A3~B7~DR15~DQ6.
HLA-B7 (B7) is an HLA-B serotype. The serotype identifies the more common HLA-B*07 gene products. B7, previously HL-A7, was one of the first 'HL-A' antigens recognized, largely because of the frequency of B*0702 in Northern and Western Europe and the United States. B7 is found in two major haplotypes in Europe, where it reaches peak frequency in Ireland. One haplotype A3-B7-DR15-DQ1 can be found over a vast region and is in apparent selective disequilibrium. B7 is a risk factor for cervical cancer, sarcoidosis, and early-onset spondylarthropathies.
HLA B7-DR15-DQ6 is a multigene haplotype that covers a majority of the human major histocompatibility complex on chromosome 6. A multigene haplotype is set of inherited alleles covering several genes, or gene-alleles, common multigene haplotypes are generally the result of descent by common ancestry. Chromosomal recombination fragments multigene haplotypes as the distance to that ancestor increases in number of generations.