Inducible T-Cell Costimulator

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** Inducible T-cell costimulator (199 aa, ~23 kDa) is encoded by the human ICOS gene. This protein is involved in the regulation of T-cell antigen-mediated responses.

**Synonyms:** - Activation-Inducible Lymphocyte Immunomediatory Molecule - Antigen CD278 - CD278 - CD278 Antigen - ICOS