Cd40 Ligand (CD40LG) Reagents

CD40 ligand

Cytokine that acts as a ligand to CD40/TNFRSF5. Costimulates T-cell proliferation and cytokine production. Its cross-linking on T-cells generates a costimulatory signal which enhances the production of IL4 and IL10 in conjunction with the TCR/CD3 ligation and CD28 costimulation. Induces the activation of NF-kappa-B. Induces the activation of kinases MAPK8 and PAK2 in T-cells. Induces tyrosine phosphorylation of isoform 3 of CD28. Mediates B-cell proliferation in the absence of co-stimulus as well as IgE production in the presence of IL4. Involved in immunoglobulin class switching.; Acts as a ligand for integrins, specifically ITGA5:ITGB1 and ITGAV:ITGB3; both integrins and the CD40 receptor are required for activation of CD40-CD40LG signaling, which have cell-type dependent effects, such as B-cell activation, NF-kappa-B signaling and anti-apoptotic signaling.

Immunodeficiency with hyper-IgM, type 1 (HIGM1)

Cell membrane; Single-pass type II membrane protein. Cell surface.; [CD40 ligand, soluble form]: Secreted.

Tumor necrosis factor family

Specifically expressed on activated CD4+ T-lymphocytes.

Immunology, Cardiovascular

CD 40L; CD154; CD40 antigen ligand; CD40 ligand; CD40 ligand; soluble form; CD40-L; CD40L; CD40L_HUMAN; CD40LG; gp39; hCD40L; HIGM1; IGM; IMD3; T B cell activating molecule; T BAM; T-cell antigen Gp39; TNF-related activation protein; TNFSF5; TrAP; Tumor necrosis factor (ligand) superfamily member 5; Tumor necrosis factor ligand superfamily member 5

The protein encoded by this gene 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.