CD8B

The CD8 antigen is a cell surface glycoprotein found on most cytotoxic T lymphocytes that mediates efficient cell-cell interactions within the immune system. The CD8 antigen, acting as a coreceptor, and the T-cell receptor on the T lymphocyte recognize antigens displayed by an antigen presenting cell (APC) in the context of class I MHC molecules. The functional coreceptor is either a homodimer composed of two alpha chains, or a heterodimer composed of one alpha and one beta chain. Both alpha and beta chains share significant homology to immunoglobulin variable light chains. This gene encodes the CD8 beta chain isoforms. Multiple alternatively spliced transcript variants encoding distinct membrane associated or secreted isoforms have been described. A pseudogene, also located on chromosome 2, has been identified. [provided by RefSeq, May 2010]

Description

CD8b molecule

Tissue specificity

Tissue enriched (lymphoid tissue)

Subcell location

Plasma membrane

Predicted location

Intracellular, Membrane

Protein family

CD markers
Mapped to neXtProt
Mapped to UniProt SWISS-PROT
Predicted intracellular proteins
Predicted membrane proteins
Protein evidence (Ezkurdia et al 2014)
Protein evidence (Kim et al 2014)

Chromosome

2 (86815339 - 86861924)

Ensembl ID

ENSG00000172116  (ver. 103.38)

Orthologs

-

UniProt

P10966

neXtProt

NX_P10966

Human splice variants

Protein structure