Cd8a - CD8 subunit alpha (Norway rat)
Gene
Symbol
Taxonomy
Dates
- Create:2016-09-14
- Modify:2025-01-17
Description
Enables protein kinase binding activity. Involved in response to methamphetamine hydrochloride. Located in cell surface. Biomarker of amphetamine abuse and brain infarction. Human ortholog(s) of this gene implicated in primary immunodeficiency disease. Orthologous to human CD8A (CD8 subunit alpha).
- T-cell surface glycoprotein CD8 alpha chain
- CD8 antigen 32 kDa chain
- CD8 antigen, alpha-chain
- CD8a molecule
- OX-8 membrane antigen
Integral membrane glycoprotein that plays an essential role in the immune response and serves multiple functions in responses against both external and internal offenses. In T-cells, functions primarily as a coreceptor for MHC class I molecule:peptide complex. The antigens presented by class I peptides are derived from cytosolic proteins while class II derived from extracellular proteins. Interacts simultaneously with the T-cell receptor (TCR) and the MHC class I proteins presented by antigen presenting cells (APCs). In turn, recruits the Src kinase LCK to the vicinity of the TCR-CD3 complex. LCK then initiates different intracellular signaling pathways by phosphorylating various substrates ultimately leading to lymphokine production, motility, adhesion and activation of cytotoxic T-lymphocytes (CTLs). This mechanism enables CTLs to recognize and eliminate infected cells and tumor cells. In NK-cells, the presence of CD8A homodimers at the cell surface provides a survival mechanism allowing conjugation and lysis of multiple target cells. CD8A homodimer molecules also promote the survival and differentiation of activated lymphocytes into memory CD8 T-cells.
Highly accurate protein structure prediction with AlphaFold. Nature. 2021 Aug;596(7873):583-589. DOI:10.1038/s41586-021-03819-2. PMID:34265844; PMCID:PMC8371605
- NCBI GeneLICENSENCBI Website and Data Usage Policies and Disclaimershttps://www.ncbi.nlm.nih.gov/home/about/policies/
- PubChem
- Alliance of Genome ResourcesLICENSEAll annotations and data produced by Alliance members that are accessible from alliancegenome.org are distributed under a CC BY 4.0 license (https://creativecommons.org/licenses/by/4.0/).https://www.alliancegenome.org/privacy-warranty-licensing
- NCBI Gene Expression Omnibus (GEO)
- Rat Genome Database (RGD)LICENSECreative Commons Attribution 4.0 International license (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
- STRING: functional protein association networks
- Swiss Institute of Bioinformatics Bgee
- UniProtLICENSEWe have chosen to apply the Creative Commons Attribution (CC BY 4.0, http://creativecommons.org/licenses/by/4.0/) License to all copyrightable parts of our databases.https://www.uniprot.org/help/license
- Wikidata
- AlphaFold DBLICENSEAll of the data provided is freely available for both academic and commercial use under Creative Commons Attribution 4.0 (CC-BY 4.0) licence terms.https://alphafold.ebi.ac.uk/faq
CONTENTS