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HLA-DMB major histocompatibility complex, class II, DM beta

Gene ID: 3109, updated on 5-Mar-2024
Gene type: protein coding
Also known as: RING7; D6S221E

Summary

HLA-DMB belongs to the HLA class II beta chain paralogues. This class II molecule is a heterodimer consisting of an alpha (DMA) and a beta (DMB) chain, both anchored in the membrane. It is located in intracellular vesicles. DM plays a central role in the peptide loading of MHC class II molecules by helping to release the CLIP (class II-associated invariant chain peptide) molecule from the peptide binding site. Class II molecules are expressed in antigen presenting cells (APC: B lymphocytes, dendritic cells, macrophages). 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. [provided by RefSeq, Jul 2008]

Genomic context

Location:
6p21.32
Sequence:
Chromosome: 6; NC_000006.12 (32934636..32941028, complement)
Total number of exons:
6

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