Clone Number: 24-31
Immunogen: human CD154 fusion protein
Concentration: 1 mg/ml
Format: Purified by protein-A affinity chromatography.
Storage buffer: Phosphate buffered saline (PBS), pH 7.4, 15 mM sodium azide
Additional info: CD154 / CD40L (CD40 ligand) is a member of the tumor necrosis factor family, and is expressed primarily on activated CD4+ lymphocytes, but also on mast cells, basophils, eosinophils and human dendritic cells. Its counter-receptor CD40 is expressed on antigen presenting cells, including dendritic cells, macrophages, and B cells, and also on fibroblasts. Triggering of CD40 by CD40L causes maturation of dendritic cells and upregulation of antigen presentation in functions of the MHC and costimulatory molecules. CD40L also functions as a direct stimulating factor for T cells. CD40L plays also roles e.g. in antibody class switching and modulation of apoptosis in the germinal center.SpecificityThe mouse monoclonal antibody SY11B5 recognizes CD157, an approximately 45 kDa GPI-anchored extracellular protein expressed mainly on monocytes, macrophages, granulocytes and bone marrow stromal cells.Application detailsFlow cytometry: Recommended dilution: 2-6 μg/ml.
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