Gene Information
Gene NameHLA-DQA2
OrganismHomo sapiens (Human)
Gene Length255
Protein NamesHLA class II histocompatibility antigen, DQ alpha 2 chain (DX alpha chain) (HLA class II histocompatibility antigen, DQ(6) alpha chain) (HLA-DQA1) (MHC class II DQA2)
Target NameNA
Target TypeNA
Gene Age3 ( ENSG00000206301 )
3 ( ENSG00000223793 )
3 ( ENSG00000225103 )
3 ( ENSG00000231526 )
3 ( ENSG00000231823 )
3 ( ENSG00000233192 )
55 ( ENSG00000237541 )
3 ( ENSG00000257473 )
Evolutionary StageVertebrata
AlphaFoldDBP01906
Gene CardHLA-DQA2
Uniprot IDP01906
PfamPF07654; PF00993
In ASDno
Allosteric Predictionyes (0.067817092)
Ortholog in AnimalsAlpaca_ HLA-DQA2 ( ortholog_one2one )
OhnologsNA
ParalogsHLA-DPB1, HLA-DPA1, HLA-DMB, HLA-DOA, HLA-DOB, HLA-DRA, HLA-DRB5, HLA-DRB1, B2M, HLA-DQB1, HLA-DQB2, HLA-DMA, HLA-DQA1
TissueNA
Tissue SpecificityRestricted to skin Langerhans cells, although some expression at low levels may occur at the surface of B lymphoblastoid cells. {ECO:0000269|PubMed:22407913, ECO:0000269|PubMed:9036956}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB NA 
DBSNP rs9276436  rs2071800 
Subcellular location [CC]Cell membrane {ECO:0000269|PubMed:22407913};
Single-pass type I membrane protein {ECO:0000269|PubMed:22407913}. Endoplasmic reticulum membrane {ECO:0000269|PubMed:22407913};
Single-pass type I membrane protein {ECO:0000269|PubMed:22407913}. Golgi apparatus, trans-Golgi network membrane {ECO:0000269|PubMed:22407913};
Single-pass type I membrane protein {ECO:0000269|PubMed:22407913}. Endosome membrane {ECO:0000269|PubMed:22407913};
Single-pass type I membrane protein {ECO:0000269|PubMed:22407913}. Lysosome membrane {ECO:0000269|PubMed:22407913};
Single-pass type I membrane protein {ECO:0000269|PubMed:22407913}. Note=The MHC class II complex transits through a number of intracellular compartments in the endocytic pathway until it reaches the cell membrane for antigen presentation.
Mouse PG classificationNA
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