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Invitrogen
Description: CD40 belongs to the TNF receptor superfamily and is a biochemical marker for the identification of activated platelets of patients with cardiovascular diseases (angina pectoris, infarction, stroke etc.)
A key role of CD40/CD40ligand interactions in immune activation, particularly in T-cell dependent B cell responses is anticipated. CD40 Ligand is expressed on the surface of activated CD4+ T cells, basophils, and mast cells. Binding of CD40L to its receptor, CD40, on the surface of B cells stimulates B-cell proliferation, adhesion and differentiation. A soluble isoform of CD40L has been shown to exist in the circulation. This soluble molecule is a homotrimer of a 18kDa protein exhibiting full activity in B cell proliferation and differentiation assays, is able to rescue B cells from apoptosis and binds soluble CD40.
CD40L is discussed in relation to a potential role in supporting B cell tumors and it has been discovered that the molecular defect in the X-linked Hyper-IgM-Syndrome is targeted to the CD40 L gene, it is functional involved in B cell hybridomas and chronic lymphocytic leukemia as well as several autoimmune diseases.
BMS153 was found to block binding of CD40Ligand to its receptor CD40.
CD40 Ligand (CD40-L), or CD154, is a membrane glycoprotein and differentiation antigen expressed on the surface of T cells. The CD40 Ligand stimulates B cell proliferation and secretion of all immunoglobulin isotypes in the presence of cytokines. CD40 Ligand has been shown to induce cytokine production and tumoricidal activity in peripheral blood monocytes. It also co-stimulates proliferation of activated T cells and this is accompanied by the production of IFN-gamma, TNF-alpha, and IL-2.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: CD154; CD40 antigen ligand; CD40 ligand; CD40-L; H-CD-40-L; M-CD-40-L; RP23-153G22.3; T-B cell-activating molecule; T-cell antigen Gp39; TNF-related activation protein; TRAP; tumor necrosis factor (ligand) superfamily member 5; Tumor necrosis factor ligand superfamily member 5
Gene Aliases: CD154; CD40L; CD40LG; gp39; hCD40L; HIGM1; IGM; IMD3; T-BAM; TNFSF5; TRAP
UniProt ID: (Human) P29965
Entrez Gene ID: (Human) 959
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