Human ICOS, recombinant (C-Fc)

Recombinant Human Inducible T-cell Costimulator is produced by our Mammalian expression system and the target gene encoding Glu21-Phe141 is expressed with a human IgG1 Fc tag at the C-terminus. Protein function: Enhances all basic T-cell responses to a foreign antigen, namely proliferation, secretion of lymphokines, up-regulation of molecules that mediate cell-cell interaction, and effective help for antibody secretion by B-cells. Essential both for efficient interaction between T and B-cells and for normal antibody responses to T-cell dependent antigens. Does not up-regulate the production of interleukin- 2, but superinduces the synthesis of interleukin-10. Prevents the apoptosis of pre-activated T-cells. Plays a critical role in CD40- mediated class switching of immunoglobin isotypes. [The UniProt Consortium]