HLA-DRB5 Gene Summary [Human]

HLA-DRB5 belongs to the HLA class II beta chain paralogues. This class II molecule is a heterodimer consisting of an alpha (DRA) and a beta (DRB) 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. The beta chain is approximately 26-28 kDa and its gene contains 6 exons. Exon one encodes the leader peptide, exons 2 and 3 encode the two extracellular domains, exon 4 encodes the transmembrane domain and exon 5 encodes the cytoplasmic tail. Within the DR molecule the beta chain contains all the polymorphisms specifying the peptide binding specificities. Typing for these polymorphisms is routinely done for bone marrow and kidney transplantation. There are multiple pseudogenes of this gene. [provided by RefSeq, Feb 2020]

Details

Type
Protein Coding
Official Symbol
HLA-DRB5
Official Name
major histocompatibility complex, class II, DR beta 5 [Source:HGNC Symbol;Acc:HGNC:4953]
Ensembl ID
ENSG00000198502
Bio databases IDs NCBI: 3127 Ensembl: ENSG00000198502
Aliases major histocompatibility complex, class II, DR beta 5
Synonyms DRB5, MAJOR HISTOCOMPATIBILITY COMPLEX, CLASS2, DR beta 5, MAJOR HISTOCOMPATIBILITY COMPLEX, CLASS2, DR β 5, major histocompatibility complex, class II, DR beta 5, major histocompatibility complex, class II, DR β 5
Species
Human, Homo sapiens

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human HLA-DRB5 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • Immunoglobulin C1-set domain
  • immunoglobulin domain
  • protein binding
  • transmembrane receptor
  • peptide antigen binding
  • Class II histocompatibility antigen, beta domain

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • schizophrenia
  • atopic dermatitis
  • tuberculosis
  • COVID-19
  • anterior uveitis
  • pervasive developmental disorder
  • limited cutaneous systemic sclerosis
  • idiopathic inflammatory myopathy
  • asthma
regulated by

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Plasma Membrane
  • endocytic vesicle membrane
  • cytoplasmic vesicle membrane
  • cellular membrane
  • vesicles
  • Golgi membrane
  • trans Golgi network
  • lysosome membrane
  • endosomal membrane
  • exosomes

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human HLA-DRB5 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • positive regulation of T cell activation
  • peptide antigen assembly with MHC class II protein complex
  • adaptive immune response
  • antigen processing and presentation of exogenous peptide antigen via MHC class II
  • positive regulation of immune response

Cellular Component

Where in the cell the gene product is active
  • MHC class II protein complex
  • late endosome membrane
  • transport vesicle membrane
  • extracellular vesicular exosome
  • clathrin-coated endocytic vesicle membrane
  • ER to Golgi transport vesicle membrane
  • Golgi membrane
  • plasma membrane
  • endocytic vesicle membrane
  • lysosomal membrane
  • trans-Golgi network membrane

Molecular Function

What the gene product does at the molecular level
  • peptide antigen binding
  • MHC class II protein complex binding

Gene-Specific Assays for Results You Can Trust

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