The tumor necrosis factor superfamily member TNFSF4 is a type II membrane bound, non-covalently linked homotrimeric protein. It is expressed on antigen presenting cells, such as dendritic cells and activated B-cells, and also on other cells such as vascular endothelial cells, mast cells, and natural killer cells. TNFSF4 signals specifically through the TNFRSF4 receptor, is expressed predominantly on CD4+T cells but also on certain activated CD8+T cells. TNFRSF4/TNFSF4 functions as a costimulatory signal, which is required for a productive interaction between antigen presenting cells and their target T-cells. It enhances cell proliferation and survival, and increases expression of RANTES, IL-2, IL-3, and IFNgamma. TNFRSF4/TNFSF4 signaling plays an important role in immunotolerance.
Protein Aliases: CD134 ligand; CD252; Glycoprotein Gp34; OX40 antigen ligand; OX40 ligand; OX40L; TAX transcriptionally-activated glycoprotein 1; tax-transcriptionally activated glycoprotein 1 (34kD); tumor necrosis factor (ligand) superfamily member 4; tumor necrosis factor ligand 2B; Tumor necrosis factor ligand superfamily member 4
Gene Aliases: CD134L; CD252; GP34; OX-40L; OX4OL; TNFSF4; TNLG2B; TXGP1
UniProt ID: (Human) P23510
Entrez Gene ID: (Human) 7292