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HLA-DRB3 belongs to the HLA class II beta chain paralogues. This class II molecule is a heterodimer consisting of an alpha (DRA) and a beta (DRB) chain, both anchored in the membrane. It plays a central role in the immune system by presenting peptides derived from extracellular proteins. Class II molecules are expressed in antigen presenting cells (APC: B lymphocytes, dendritic cells, macrophages). The beta chain is approximately 26-28 kDa and its gene contains 6 exons. Exon one encodes the leader peptide, exons 2 and 3 encode the two extracellular domains, exon 4 encodes the transmembrane domain and exon 5 encodes the cytoplasmic tail. Within the DR molecule the beta chain contains all the polymorphisms specifying the peptide binding specificities. Typing for these polymorphisms is routinely done for bone marrow and kidney transplantation. DRB1 is expressed at a level five times higher than its paralogues DRB3, DRB4 and DRB5. The presence of DRB3 is linked with allelic variants of DRB1, otherwise it is omitted. There are 4 related pseudogenes: DRB2, DRB6, DRB7, DRB8 and DRB9. [provided by RefSeq, Jul 2008]
[中文简述(自动翻译):]  HLA-DRB3属于HLA II类β链旁系同源基??因。此Ⅱ类分子是选自由α(DRA)和β(DRB)链,无论在膜锚定的异源二聚体。它起着通过呈现由胞外蛋白衍生的肽在免疫系统中发挥中心作用。 (:B淋巴细胞,树突细胞,巨噬细胞,APC)II类分子在抗原呈递细胞中表达。的β链为约26-28 kDa和其基因含有6个外显子。外显子1编码前导肽,外显子2和3编码的两个细胞外结构域,外显子4编码的跨膜结构域和外显子5编码胞质尾区。在DR分子的β链包含了所有的多态性指定肽结合特异性。打字这些多态性是经常的骨髓和肾移植完成。 DRB1是在表达水平低于其旁系同源DRB3,DRB4和DRB5的5倍。 DRB3的存在与DRB1的等位基因变体相连,否则,它被删去。有4个相关的假:DRB2,DRB6,DRB7,DRB8和DRB9。 [由RefSeq的,2008年7月提供]
HLA-DRB3基因(以及对应的蛋白质)的细胞分布位置:
HLA-DRB3基因的本体(GO)信息:
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Lupus Erythematosus, Systemic | 0.014202192 | 6 | 0 | GAD |
Sarcoidosis | 0.008186863 | 7 | 0 | BeFree_GAD |
Hepatitis, Autoimmune | 0.005362824 | 3 | 0 | BeFree_GAD_LHGDN |
Autoimmune Diseases | 0.005091382 | 2 | 0 | GAD_LHGDN |
Abortion, Habitual | 0.004734064 | 2 | 0 | GAD |
Hepatitis C | 0.004734064 | 2 | 0 | GAD |
HIV Infections | 0.004734064 | 2 | 0 | GAD |
Psoriasis | 0.004734064 | 2 | 0 | GAD |
Tuberculosis | 0.004734064 | 2 | 0 | GAD |
Aortic Aneurysm, Abdominal | 0.004734064 | 2 | 0 | GAD |
Latex allergy | 0.004734064 | 2 | 0 | GAD |
Celiac Disease | 0.002995792 | 2 | 0 | BeFree_LHGDN |
Ulcerative Colitis | 0.002995792 | 2 | 0 | BeFree_LHGDN |
Arthritis | 0.00272435 | 1 | 0 | LHGDN |
Inclusion Body Myositis (disorder) | 0.00272435 | 1 | 0 | LHGDN |
Diabetes Mellitus, Insulin-Dependent | 0.002638474 | 2 | 0 | BeFree_GAD |
Abruptio Placentae | 0.002367032 | 1 | 0 | GAD |
Brain Neoplasms | 0.002367032 | 1 | 0 | GAD |
Churg-Strauss Syndrome | 0.002367032 | 1 | 0 | GAD |
Glioma | 0.002367032 | 1 | 0 | GAD |
Hallucinations | 0.002367032 | 1 | 0 | GAD |
Inflammation | 0.002367032 | 1 | 0 | GAD |
Myeloid Leukemia, Chronic | 0.002367032 | 1 | 0 | GAD |
Liver Cirrhosis | 0.002367032 | 1 | 0 | GAD |
Multiple Sclerosis | 0.002367032 | 1 | 0 | GAD |
Narcolepsy | 0.002367032 | 1 | 0 | GAD |
Bullous pemphigoid | 0.002367032 | 1 | 0 | GAD |
Periodontitis | 0.002367032 | 1 | 0 | GAD |
Pityriasis Rosea | 0.002367032 | 1 | 0 | GAD |
Pregnancy Complications | 0.002367032 | 1 | 0 | GAD |
Rheumatic Heart Disease | 0.002367032 | 1 | 0 | GAD |
Rhinitis | 0.002367032 | 1 | 0 | GAD |
Kaposi Sarcoma | 0.002367032 | 1 | 0 | GAD |
Systemic Scleroderma | 0.002367032 | 1 | 0 | GAD |
Thrombocytopenia | 0.002367032 | 1 | 0 | GAD |
Gestational Diabetes | 0.002367032 | 1 | 0 | GAD |
Dementia | 0.002367032 | 1 | 0 | GAD |
Pregnancy loss | 0.002367032 | 1 | 0 | GAD |
Lewy Body Disease | 0.002367032 | 1 | 0 | GAD |
Thrombotic thrombocytopenic purpura, acquired | 0.002367032 | 1 | 0 | GAD |
Graves Disease | 0.001357209 | 5 | 0 | BeFree |
Crohn Disease | 0.000542884 | 2 | 0 | BeFree |
Rheumatoid Arthritis | 0.000271442 | 1 | 0 | BeFree |
Obesity | 0.000271442 | 1 | 0 | BeFree |
Purpura, Thrombotic Thrombocytopenic | 0.000271442 | 1 | 0 | BeFree |
Essential Hypertension | 0.000271442 | 1 | 0 | BeFree |
Chronic Periodontitis | 0.000271442 | 1 | 0 | BeFree |
Aspirin-sensitive asthma with nasal polyps | 0.000271442 | 1 | 0 | BeFree |
Immune thrombocytopenic purpura | 0.000271442 | 1 | 0 | BeFree |
Inclusion Body Myopathy, Sporadic | 0.000271442 | 1 | 0 | BeFree |
Juvenile arthritis | 0.000271442 | 1 | 0 | BeFree |
Juvenile rheumatoid arthritis | 0.000271442 | 1 | 0 | BeFree |
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