MeSH definition : A membrane glycoprotein and differentiation antigen expressed on the surface of T-cells
that binds to CD40 ANTIGENS on B-LYMPHOCYTES and induces their proliferation. Mutation
of the gene for CD40 ligand is a cause of HYPER-IGM IMMUNODEFICIENCY SYNDROME, TYPE
1.;
A membrane glycoprotein and differentiation antigen expressed on the surface of T-cells
that binds to CD40 ANTIGENS on B-LYMPHOCYTES and induces their proliferation. Mutation
of the gene for CD40 ligand is a cause of HYPER-IGM IMMUNODEFICIENCY SYNDROME, TYPE
1.