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Gene information for HLA-DPA1 (Homo sapiens)
(Information is obtained from NCBI Gene database)
Entrez gene ID3113
Official gene symbolHLA-DPA1
Full namemajor histocompatibility complex, class II, DP alpha 1
Aliases,HLA-DP1A,HLADP,HLASB,PLT1,
Gene summaryHLA-DPA1 belongs to the HLA class II alpha chain paralogues. This class II molecule is a heterodimer consisting of an alpha (DPA) and a beta (DPB) 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 alpha chain is approximately 33-35 kDa and its gene contains 5 exons. Exon one encodes the leader peptide, exons 2 and 3 encode the two extracellular domains, exon 4 encodes the transmembrane domain and the cytoplasmic tail. Within the DP molecule both the alpha chain and the beta chain contain the polymorphisms specifying the peptide binding specificities, resulting in up to 4 different molecules. [provided by RefSeq]
LocationChromosome: 6   Locus: 6p21.3
Gene position33041378 - 33032794  Map Viewer
Gene orientationminus
Gene size8585 bp
Gene sequence
OMIM ID142880