DR1 binding pocket with ligand PDB: 2G9H [1] | ||
major histocompatibility complex, class II, DR1
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Haplotypes groups | DRA*01:DRB1*01:01 DRA*01:DRB1*01:02 DRA*01:DRB1*01:03 | |
Structure (See HLA-DR) | ||
Identifiers | alpha *01:01
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Symbol(s) | HLA-DRA[permanent dead link] | |
EBI-HLA | DRA *01:01 | |
Identifiers | beta 1 *01:01, *01:02, *01:03 . . .
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Symbol(s) | HLA-DRB1[permanent dead link] | |
Shared data | ||
Locus | chr.6 6p21.31 |
HLA-DR1 (DR1) is a HLA-DR serotype that recognizes the DRB1*01 gene products. It has been observed to be common among centenarians.[2][3][4]
DRB1* | DR1 | DR103 | Sample | |
allele | % | % | % | size (N) |
*01:01 | 97% | 6317 | ||
*01:02 | 95% | 2035 | ||
*01:03 | 56% | 12% | 1186 | |
*01:05 | >50% | 2 |
The serology for the most common DR1 alleles is excellent. The serology for alleles *01:04, *01:06, *01:09, *01:10, *0112, *0115, and *0116 is unknown.
DR1 is associated with seronegative[6]-rheumatoid arthritis,[7][8] penicillamine-induced myasthenia,[9] and schizophrenia.[10] DR1 is increased in patients with systemic sclerosis and arthritis[11] and in ulcerative colitis with patients that have articular manifestations.[12]
DRB1*01:01 is associated with rheumatoid arthritis,[13] in anti-Jk(a) mediated hemolytic transfusion reactions,[14] foliaceous pemphigus,[15] HTLV-1-associated myelopathy/tropical spastic paraparesis, and [16] lichen planus.[17] In lyme disease arthritis, *01:01 appears to play a role in presentation of triggering microbial antigens.[18]
DRB1*01:02 is associated with rheumatoid arthritis,[13] in anti-Jk(a) mediated hemolytic transfusion reactions,[14] psoriasis vulgaris,[19] and recurrent respiratory papillomatosis[20]
DRB1*01:03 is associated with colonic Crohn's disease[21] and ulcerative colitis.[22][23]
DRB1*01:01/*0404 and *01:01/*0401 increases risk of mortality in rheumatoid arthritis, with ischemic heart disease and smoking.[24] these same genotypes are associated with rheumatoid vasculitis.[25]
DRB1*01:02:DQB1*05:01 is associated with psoriasis vulgaris[19] and tubulointerstitial nephritis & uveitis syndrome,[26] but is relatively protective against juvenile diabetes.[27]
DR1-DQ5 is associated with tubulointerstitial nephritis & uveitis syndrome.[26]
Class | Disease | Associated DR | 2 | 3 | 4 |
---|---|---|---|---|---|
alopecia areata | DR5 | ||||
anemia | pernicious | DR15 | |||
antiphospholipid syndrome, primary | DR5 | DR12 | |||
aneurysm | coronary artery | DR16 | |||
arteritis | Takayasu's | DR16 | |||
arthritis, rheumatoid | juvenile | DR4 | DR5 | DR14 | DR15 |
pauciarticular, juv. | DR8 | ||||
Still's disease | DR12 | ||||
iritis w/juv. arthritis | DR12 | ||||
seropositive | DR1 | DR4 | DR10 | ||
w/systemic sclerosis | DR1 | ||||
lyme disease induced | DR4 | ||||
tiopronin intolerance | DR5 | DR11 | DR12 | ||
cardiomyopathy | hypertrophic | DR4 | DR17 | ||
T. cruzi induced | DR4 | DR7 | DR15 | ||
colitis | Crohn's | DR1 | |||
ulcerative | DR1 | ||||
diabetes | juvenile (type 1) | DR3 | DR4 | DR17 | DR18 |
fatty liver (type 2) | DR8 | ||||
encephalomyelitis | rabies vaccine-induced | DR17 | |||
encephalopathy | acute necrotizing | DR52 | |||
epilepsy | childhood | DR5 | |||
infantile/spasm | DR17 | ||||
heart disease | rheumatic | DR16 | |||
hepatitis | autoimmune | DR2 | DR4 | DR17 | |
primary biliary cirrhosis | DR2 | DR8 | |||
chronic type C | DR11 | ||||
lichen planus | DR1 | DR10 | |||
lupus, | systemic | DR3 | DR4 | DR52 | |
hydralazine-induced | DR4 | ||||
with Sjögren syndrome | DR15 | ||||
lymphadenopathy | generalized | DR5 | |||
lymphoma, | mycosis fungoides | DR5 | |||
melioidosis | DR16 | ||||
myasthenia | gravis | DR3 | DR6 | DR13 | DR14 |
penicillamine-induced | DR1 | ||||
myositis | inflammatory inclusion body | DR17 | DR18 | DR52 | |
narcolepsy | DR2 | DR12 | |||
nephritis, | tubulointerstitial | DR1 | |||
nephropathy | IgA-mediated | DR4 | |||
polyglandular deficiency syndrome | DR5 | ||||
pemphigus | foliaceous | DR1 | |||
vulgaris | DR4 | ||||
psoriasis | vulgaris | DR1 | DR7 | ||
papillomatosis, | respiratory | DR1 | |||
sarcoidosis | non-chronic | DR17 | DR52 | ||
sclerosis, | multiple | DR2 | DR15 | DR53 | |
"bout onset" multiple | DR3 | ||||
systemic | DR4 | DR11 | DR16 | DR52 | |
vulval lichen | DR12 | ||||
schizophrenia | DR1 | ||||
susceptibility | leprosy | DR2 | |||
tuberculosis | DR2 | ||||
ragweed Ra6 allergy | DR5 | ||||
asthma, mite sensitive | DR11 | ||||
2ndary infection, AIDS | DR3 | ||||
aspergillosis | DR15 | ||||
Kaposi's sarcoma | DR5 | ||||
thyroid carcinomas | DR8 | DR11 | |||
ovarian/cervical cancer | DR10 | DR11 | DR15 | ||
grape induced anaphylaxis | DR11 | ||||
Chlamydia pneumoniae | DR52 | ||||
thyroiditis | Hashimoto's | DR3 | DR5 | ||
Graves' | DR3 | DR17 | DR52 | ||
uveitis | tubulointerstitial | DR1 | |||
*references are provided on linked subpages |
DR1 are associated with rheumatoid arthritis, and while not the strongest association with the highest risk for early onset arthritis is within the DR4-bearing Native American population.[clarification needed] There frequency of DR4-DQ8 haplotypes reach extreme nodal levels. Arthritis has been identified in a pre-Columbian remains from Italy, the affected individual bearing the DRB1*01:01 allele.[28] DRB1*01:01 and most DR4 have in common a 'shared epitope'.[29][30] In this hypothesis a common region of the beta chain, positions 67 to 74, are common and may be integral to presenting auto-immunological peptides.
DR1 Haplotypes
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Serotypes | DRA | DRB1 | ||
---|---|---|---|---|
DR1 | *01:01 | *01:01 | ||
*01:01 | *01:02 | |||
*01:01 | *01:03 | |||
Serotypes | DQA1 | DQB1 | DRB1 | |
DR1-DQ5 (5.1, 1) | *01:01 | *05:01 | *01:01 | |
*01:01 | *05:01 | *01:02 | ||
*01:01 | *05:01 | *01:03 | ||
Serotypes | HLA-A | HLA C | HLA B | DRB1 |
A3-Cw4-B35-DR1 | *03:01 | *04:01 | *35:01 | *01:01 |
A11-Cw4-B35-DR1 | *11:01 | *04:01 | *35:01 | *01:03 |
A33-Cw8-B14-DR1 | *33:01 | *08:02 | *14:02 | *01:02 |
HLA-DR1 is not genetically linked to DR51, DR52 or DR53, but is linked to HLA-DQ1 and DQ5 serotypes.