HLA-DRA

HLA-DRA
Available structures
PDB	Ortholog search: PDBe RCSB
List of PDB id codes
	1A6A, 1AQD, 1BX2, 1D5M, 1D5X, 1D5Z, 1D6E, 1DLH, 1FV1, 1FYT, 1H15, 1HXY, 1J8H, 1JWM, 1JWS, 1JWU, 1KG0, 1KLG, 1KLU, 1LO5, 1PYW, 1R5I, 1SEB, 1SJE, 1SJH, 1T5W, 1T5X, 1YMM, 1ZGL, 2FSE, 2G9H, 2IAM, 2IAN, 2ICW, 2IPK, 2OJE, 2Q6W, 2WBJ, 2XN9, 3C5J, 3L6F, 3O6F, 3PDO, 3PGC, 3PGD, 3QXA, 3QXD, 3S4S, 3S5L, 3T0E, 4AEN, 4AH2, 4E41, 4FQX, 4GBX, 4H1L, 4C56, 4H25, 4H26, 4I5B, 4IS6, 4MCY, 4MCZ, 4MD0, 4MD4, 4MD5, 4MDI, 4MDJ, 4OV5, 4Y19, 4Y1A, 4X5X, 4X5W
Identifiers
Aliases	HLA-DRA, HLA-DRA1, MLRW, major histocompatibility complex, class II, DR alpha
External IDs	OMIM: 142860 MGI: 95900 HomoloGene: 7751 GeneCards: HLA-DRA
Gene location (Human)
Chr.	Chromosome 6 (human)
End	32,445,046 bp
RNA expression pattern
	Top expressed in
	monocyte; ; appendix; ; lymph node; ; gallbladder; ; duodenum; ; spleen; ; upper lobe of left lung; ; right lung; ; smooth muscle tissue; ; rectum;
	n/a
	More reference expression data
	More reference expression data
Gene ontology
Molecular function	peptide antigen binding; MHC class II receptor activity; MHC class II protein complex binding; protein binding;
Cellular component	integral component of membrane; endocytic vesicle membrane; clathrin-coated endocytic vesicle membrane; endosome; Golgi apparatus; trans-Golgi network membrane; endoplasmic reticulum membrane; membrane; late endosome membrane; Golgi membrane; plasma membrane; transport vesicle membrane; integral component of plasma membrane; cell surface; lysosomal membrane; endoplasmic reticulum; ER to Golgi transport vesicle membrane; lysosome; integral component of lumenal side of endoplasmic reticulum membrane; endosome membrane; extracellular exosome; MHC class II protein complex;
Biological process	antigen processing and presentation; antigen processing and presentation of exogenous peptide antigen via MHC class II; cognition; interferon-gamma-mediated signaling pathway; immune system process; T cell costimulation; antigen processing and presentation of peptide or polysaccharide antigen via MHC class II; immune response; peptide antigen assembly with MHC class II protein complex; viral process; T cell receptor signaling pathway; adaptive immune response;
	Sources:Amigo / QuickGO
Orthologs
	3122
	100504404
ENSG00000206308; ENSG00000228987; ENSG00000230726; ENSG00000204287; ENSG00000227993;
	ENSG00000226260; ENSG00000234794; ENSG00000277263
	ENSMUSG00000036322
	P01903
	P04224; P01904
	NM_019111
	NM_010381
	NP_061984
	NP_034511
	Wikidata
View/Edit Human	View/Edit Mouse

HLA class II histocompatibility antigen, DR alpha chain is a protein that in humans is encoded by the HLA-DRA gene. HLA-DRA encodes the alpha subunit of HLA-DR. Unlike the alpha chains of other Human MHC class II molecules, the alpha subunit is practically invariable. However it can pair with, in any individual, the beta chain from 3 different DR beta loci, DRB1, and two of any DRB3, DRB4, or DRB5 alleles. Thus there is the potential that any given individual can form 4 different HLA-DR isoforms (2 alleles of DRB1 and two alleles from DRB3, DRB4 or DRB5).

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