CD40 Ligand

Medical Dictionary -> CD40 Ligand

CD40 Ligand


Membrane glycoprotein and differentiation antigen expressed on the surface of T-cells. It binds to CD40; (ANTIGENS, CD40) on B-cells, inducing B-cell proliferation. Mutation in this protein causes X-linked hyper-IMMUNOGLOBULIN M syndrome (HYPERGAMMAGLOBULINEMIA).


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