Anti-Human CD152 (CTLA-4) APC Size 25 tests

The BNI3 monoclonal antibody specifically reacts with human CD152, the Cytotoxic T-Lymphocyte Antigen 4 (CTLA-4). CTLA-4 is expressed on activated CD28+ T cells, and binds the B7 family members B7-1 (CD80) and B7-2 (CD86). The structure of CTLA-4 is similar to the structure of CD28, but the two molecules seem to have opposite roles on the T lymphocytes. CTLA-4 inhibits the progression of T cell activation, while CD28 stimulates it. This result explains the stimulating role that the immobilization of BNI3 plays on the T lymphocytes proliferation induced by CD28.

The product should be stored undiluted at 4C. Do not freeze. The monoclonal antibody was purified utilizing affinity chromatography. The endotoxin level is determined by LAL test to be less than 0.01 EU/µ g of the protein.

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Kuiper, H. M., Brouwer, M., Linsley, P. S., & Van Lier, R. A. (1995). Activated T cells can induce high levels of CTLA-4 expression on B cells. The Journal of Immunology, 155(4), 1776-1783.