Molecular cloning and characterization of murine ICOS and identification of B7h as ICOS ligand

Abstract excerpt

Human ICOS (huICOS) is a T cell-specific molecule structurally related to CD28 and CTLA-4 with potent co-stimulatory activities on T cell proliferation, cytokine induction and T cell help for B cells. We have now cloned and characterized murine ICOS (muICOS). muICOS mRNA of 1.5 kb and 3.3 kb encodes a protein with a deduced molecular mass of 20.3 kDa, which is 71.7 % identical to huICOS. On the cell surface,...

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