Post Translational Modifications | N-glycosylation is important for dimerization. Phosphorylation at Tyr-201 prevents binding to the AP-2 adapter complex, blocks endocytosis, and leads to retention of CTLA4 on the cell surface. |
Function | Inhibitory receptor acting as a major negative regulator of T-cell responses. The affinity of CTLA4 for its natural B7 family ligands, CD80 and CD86, is considerably stronger than the affinity of their cognate stimulatory coreceptor CD28. |
Protein Name | Cytotoxic T-Lymphocyte Protein 4Cytotoxic T-Lymphocyte-Associated Antigen 4Ctla-4Cd Antigen Cd152 |
Database Links | Reactome: R-HSA-389513Reactome: R-HSA-8877330 |
Cellular Localisation | Cell MembraneSingle-Pass Type I Membrane ProteinExists Primarily An Intracellular Antigen Whose Surface Expression Is Tightly Regulated By Restricted Trafficking To The Cell Surface And Rapid Internalization |
Alternative Nanobody Names | Anti-Cytotoxic T-Lymphocyte Protein 4 nanobodyAnti-Cytotoxic T-Lymphocyte-Associated Antigen 4 nanobodyAnti-Ctla-4 nanobodyAnti-Cd Antigen Cd152 nanobodyAnti-CTLA4 nanobodyAnti-CD152 nanobody |
Information sourced from Uniprot.org