HLA-DQA1 - major histocompatibility complex, class II, DQ alpha 1 Gene
Also Known as DQA1; DQ-A1; CELIAC1; HLA-DQA; HLA-DQB1; HLA-DQA1*
Species: Homo sapiens
About HLA-DQA1
This gene has 7 transcripts (splice variants), 1 gene allele, 553 orthologues, 13 paralogues and is associated with 5 phenotypes. Broad expression in lung (RPKM 134.8), lymph node (RPKM 101.5) and 18 other tissues.
Summary
HLA-DQA1 belongs to the HLA class II alpha chain paralogues. The class II molecule is a heterodimer consisting of an alpha (DQA) and a beta chain (DQB), 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 alpha chain is approximately 33-35 kDa. It is encoded by 5 exons; exon 1 encodes the leader peptide, exons 2 and 3 encode the two extracellular domains, and exon 4 encodes the transmembrane domain and the cytoplasmic tail. Within the DQ molecule both the alpha chain and the beta chain contain the polymorphisms specifying the peptide binding specificities, resulting in up to four different molecules. Typing for these polymorphisms is routinely done for bone marrow transplantation. [provided by RefSeq, Jul 2008]
HLA-DQA1 Products (1)
| mRNA | Protein | Name |
|---|---|---|
| NM_002122.5 | NP_002113.2 | HLA class II histocompatibility antigen, DQ alpha 1 chain precursor |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
14769912 | GOA |
HLA-DQA1 Protein Structure
MHC_II_alpha: Class II histocompatibility antigen, alpha domain (29 - 110)
C1-set: Immunoglobulin C1-set domain (120 - 200)
- 0
- 100
- 200
- 255 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
HLA class II histocompatibility antigen, DQ alpha 1 chain |
|
HLA-DQA1 Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | References |
|---|---|---|---|---|---|---|---|
|
Intra
|
HLA-DQA1 | P01909 | HLA-DQB1 | Homo sapiens | P01920 | 17629515 | |
|
Intra
|
HLA-DQA1 | P01909 | HLA-DQB1 | Homo sapiens | P01920 | 11376336 | |
|
Intra
|
HLA-DQA1 | P01909 | HLA-DQB1 | Homo sapiens | P01920 | 29997244 | |
|
Intra
|
HLA-DQA1 | P01909 | HLA-DQB1 | Homo sapiens | P01920 | 17629515 | |
|
Intra
|
HLA-DQA1 | P01909 | HLA-DQB1 | Homo sapiens | P01920 | 33961781 | |
|
Intra
|
HLA-DQA1 | P01909 | HLA-DQB1 | Homo sapiens | P01920 | 29997244 | |
|
Intra
|
HLA-DQA1 | P01909 | HLA-DQB1 | Homo sapiens | P01920 | 14769912 |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Celiac Disease 1 |
|
|
| Adult-Onset Myasthenia Gravis |
|
|
| Achalasia |
|
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| Podoconiosis |
|
|
| Eosinophilia-Myalgia Syndrome |
|
|
| Type 1 Diabetes Mellitus |
|
|
| Focal Epithelial Hyperplasia |
|
|
| Juvenile Rheumatoid Arthritis |
|
|
| Superficial Keratitis |
|
|
| Graves' Disease |
|
|
| Dermatitis Herpetiformis |
|
|
| Membranous Nephropathy |
|
|
| Histoplasmosis |
|
|
| Onchocerciasis |
|
|
| Guillain-Barre Syndrome |
|
|
| Rubella |
|
|
| Rheumatic Fever |
|
|
| Optic Neuritis |
|
|
| Rheumatic Heart Disease |
|
|
| Hirata Disease |
|
|
| Calcinosis |
|
|
| Mixed Connective Tissue Disease |
|
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| Narcolepsy |
|
|
| Thyroiditis |
|
|
| Type 1 Diabetes Mellitus 5 |
|
|
| Autoimmune Disease |
|
|
| Lambert-Eaton Myasthenic Syndrome |
|
|
| Takayasu Arteritis |
|
|
| Neuromyelitis Optica |
|
|
| Pelvic Inflammatory Disease |
|
|
| Viral Hepatitis |
|
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| Penis Carcinoma In Situ |
|
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| Myositis |
|
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| Alopecia Areata |
|
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| Toxoplasmosis |
|
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| Autoimmune Disease Of Endocrine System |
|
|
| Cholangitis |
|
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| Connective Tissue Disease |
|
|
| Childhood Type Dermatomyositis |
|
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| Endometritis |
|
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| Adult Dermatomyositis |
|
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| Sympathetic Ophthalmia |
|
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| Tropical Sprue |
|
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| Multiple Sclerosis |
|
|
| Adrenal Cortical Hypofunction |
|
|
| Immunoglobulin Alpha Deficiency |
|
|
| Autoimmune Polyendocrine Syndrome, Type Ii |
|
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| Autoimmune Disease Of Gastrointestinal Tract |
|
|
| Systemic Lupus Erythematosus |
|
|
| Type 1 Diabetes Mellitus 15 |
|
|
| Juvenile Dermatitis Herpetiformis |
|
|
| Relapsing Polychondritis |
|
|
| Vogt-Koyanagi-Harada Disease |
|
|
| Immunoglobulin A Deficiency 1 |
|
|
| Chondromalacia |
|
|
| Type 1 Diabetes Mellitus 12 |
|
|
| Nephrotic Syndrome |
|
|
| Chronic Cholangitis |
|
|
| Diabetes Mellitus |
|
|
| Asthma |
|
|
| Cystic Fibrosis |
|
|
| Complement Component 7 Deficiency |
|
|
| Heart Disease |
|
|
| Leprosy 3 |
|
|
| Limited Scleroderma |
|
|
| Cerebral Palsy |
|
|
| Behcet Syndrome |
|
|
| Primary Biliary Cholangitis |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Mus musculus | HLA-DQA1 | MGD | MGI:95895 |
| Rattus norvegicus | HLA-DQA1 | RGD | RGD:1595867 |