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Gene information for HLA-DQA1 (Homo sapiens)
(Information is obtained from NCBI Gene database)
Entrez gene ID3117
Official gene symbolHLA-DQA1
Full namemajor histocompatibility complex, class II, DQ alpha 1
Aliases,CD,CELIAC1,DQ-A1,FLJ27088,FLJ27328,GSE,HLA-DQA,MGC149527,
Gene summaryHLA-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]
LocationChromosome: 6   Locus: 6p21.3
Gene position32605183 - 32611429  Map Viewer
Gene orientationplus
Gene size6247 bp
Gene sequence
OMIM ID146880