NCIt synonyms : Cytotoxic T-Lymphocyte-Associated Protein 4 Ligand; CTLA4 Ligand;
NCIt definition : Proteins that bind to cytotoxic T-lymphocyte protein 4, which is expressed on T-cells,
and stimulate signaling that may play a role in the inhibition of T-cell activation.
This group of proteins includes the T-lymphocyte activation antigens CD80 and CD86,
which are expressed on antigen-presenting cells.;