Products

Immunoprecipitation

Entrez GeneID

GeneBank Accession#

Protein Accession#

Gene Name

HLA-DQB1

Gene Alias

CELIAC1, HLA-DQB, IDDM1

Gene Description

major histocompatibility complex, class II, DQ beta 1

Omim ID

Gene Ontology

Gene Summary

HLA-DQB1 belongs to the HLA class II beta chain paralogues. This class II molecule is a heterodimer consisting of an alpha (DQA) and a beta chain (DQB), 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 beta chain is approximately 26-28 kDa and it 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 DQ molecule both the alpha chain and the beta chain contain the polymorphisms specifying the peptide binding specificities, resulting in up to 4 different molecules. Typing for these polymorphisms is routinely done for bone marrow transplantation. [provided by RefSeq

Other Designations

MHC DQ beta|MHC class II DQ beta chain|MHC class II HLA-DQ beta glycoprotein|MHC class II antigen DQB1|MHC class II antigen HLA-DQ-beta-1|MHC class2 antigen|OTTHUMP00000178570|lymphocyte antigen|major histocompatibility complex class II beta