Description |
Cluster of differentiation 40 ligand(CD40L, CD154) is a protein that is primarily expressed on activated T cells and is a member of the TNF superfamily of molecules. It binds to CD40 on antigen-presenting cells (APC), which leads to many effects depending on the target cell type. In general, CD40L plays the role of a costimulatory molecule and induces activation in APC in association with T cell receptor stimulation by MHC molecules on the APC. In total CD40L has three binding partners: CD40, a5b1 integrin and aIIbb3. CD40L is expressed on the surface of T cells. It regulates B cell function by engaging CD40 on the B cell surface. A defect in this gene results in an inability to undergo immunoglobulin class switch and is associated with hyper IgM syndrome. |
Working Dilution |
Western blotting: 1:100-400, Immunocytochemistry in formalin fixed cells: 1:100-500, Immunohistochemistry in formalin fixed frozen section: 1:100-500, Immunohistochemistry in paraffin section: 1:50-417 |
Synonyms |
CD154, TRAP, HIGM1, IGM, IMD3, TBAM, T-BAM, TNFSF5, Gp39, TNF Superfamily Member 5, Hyper-IgM Syndrome, TNF-Related Activation Protein, T-Cell B-Cell Activating Molecule |