Protein Name major histocompatibility complex, class II, DR beta 4
Organism Homo sapiens
Gene ID 3126
Gene Symbol

HLA-DRB4

UniProt P13762 (DRB4_HUMAN), X5D2U9 (X5D2U9_HUMAN)
Relationships Total Number of functionally related compound(s) : 187
Total Number of Articles : 230
Description

major histocompatibility complex, class II, DR beta 4

Gene Summary

HLA-DRB4 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]

synonyms
  • major histocompatibility complex, class II, DR beta 4
  • HLA class II histocompatibility antigen, DR beta 4 chain
  • MHC class II antigen DRB4
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Properties