Basic information of HLA-DQA2 :
| Official Symbol of Gene | HLA-DQA2 |
| Species | Homo sapiens |
| Entrez Gene ID | 3118 |
| Official Full Name | major histocompatibility complex, class II, DQ alpha 2 |
| Also known as | DQA1; HLA-DCA; HLA-DXA; HLADQA2; DC-alpha; DX-ALPHA |
| Gene Type | protein coding |
| dbXrefs | Ensembl:ENSG00000237541 MIM:613503; AllianceGenome:HGNC:4943 |
| Map Location | 6p21.32 |
| Variation Type | Allele |
| refSNP ID | NA |
Sample information of multiple sclerosis:
| Detected Sample | peripheral blood |
| Sample Detail | N/A |
| Detected Method | PCR |
| Disease | MS |
| Disease subtype | NA |
| Population | French Canadians |
| Sample Size | 60MS |
Literature information of multiple sclerosis :
| Pubmed ID | 2125855 |
| Year | 1990 |
| Title | Multiple Sclerosis in French Canadians: Evidence for HLA Class II Susceptibility and Resistance Genes |
Results of multiple sclerosis :
| Risk Type | Disease risk |
| Main Result | Positive |
| Result | An MS-associated and linked series of allele-specific RFLPs or allogenotypes was identified among this relatively homogeneous ethnic group; the allogenotypes include DRwl5, DQw6 and a DQA1 allogenotype termed DQalb. An additional allogenotype which cross-hybridizes with DQA1 and is termed DQA2 upper (DQA2U), was shown not only to be part of the MS-associated extended haplotype, but also to be independently associated with MS in DRwl5-nega-tive patients. Conversely a second DQA2 allogenotype, termed DQA2 lower (DQA2L) and a DQB1 allogenotype (DQw7) linked to DQA2L showed negative correlations with MS. It seems likely that the relationship of the HLA class II gene region to MS is complex and that MS susceptibility may reflect interaction between disease susceptibility and resistance genes. |
| Mechanism/Pathway | HLA class II DRBI, DQB1 and DQA1 gene probes were used to study DNA from unrelated French |
