Synonyms: Cytotoxic T-lymphocyte associated protein 4; CTLA4; CD152
Species: Human
Source: HEK 293
Biological Activity: Measured by its ability to inhibit IL-2 secretion by stimulated Jurkat human acute T cell leukemia cells and the ED50 is 0.2-1μg/mL when stimulated with 1 μg/mL human B7-1/CD80.