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Official Full Name
cytotoxic T-lymphocyte-associated protein 4
CD152 is a 33 kD member of the immunoglobulin superfamily also known as CTLA-4 or Ly-56. It is expressed on activated T and B lymphocytes. CD152 is similar to CD28 in amino acid sequence, structure, and genomic organization and these two receptors share common B7 family counter-receptors (B7-1, B7-2). Whereas CD28 delivers a costimulatory signal in T cell activation, CTLA-4 negatively regulates cellmediated immune responses. CD152 is thought to play a role in the induction and maintenance of immunological tolerance, as well as the development of protective immunity and thymocyte regulation.
CD; GSE; GRD4; ICOS; CD152; CTLA-4; IDDM12; CELIAC3; cytotoxic T-lymphocyte protein 4; CD152 isoform; celiac disease 3; cytotoxic T-lymphocyte antigen 4; cytotoxic T-lymphocyte-associated antigen 4; cytotoxic T-lymphocyte-associated serine esterase-4; cytotoxic T lymphocyte associated antigen 4 short spliced form; ligand and transmembrane spliced cytotoxic T lymphocyte associated antigen 4; Ipilimumab; Yervoy; 477202-00-9; Ticilimumab (= tremelimumab); 745013-59-6; CTLA4; cytotoxic T-lymphocyte-associated protein 4

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