Anti-Mouse Monoclonal Antibody to Mouse CTLA-4 (Clone: MCT.E9)

Cytotoxic T-lymphocyte-associated protein 4 (CTLA4), also known as CD152, is one of the first well studied immune checkpoint molecules. CTLA4 is expressed on T cells and its expression level can be up-regulated after T cell activation. CTLA4 has two ligands CD80 (B7-1) and CD86 (B7-2). CTLA4 can compete with CD28 binding with these two ligands and transmits an inhibitory signal to T cells. Therapeutic antibodies against CTLA4 can help to stimulate T cells which can then target many cancer cells. Mouse CTLA-4 antibodies with has blocking effect against CD80/CD86 binding with CTLA4 can serve as a great surrogate antibody in mouse model. Anti-Mouse CTLA-4 Antibody (MCT.E9), mAb, Mouse is produced from the hybridoma resulting from fusion of SP2/0 myeloma and B-lymphocytes obtained from mouse immunized with recombinant mouse CTLA4-Fc Protein function: Inhibitory receptor acting as a major negative regulator of T-cell responses. The affinity of CTLA4 for its natural B7 family ligands, CD80 and CD86, is considerably stronger than the affinity of their cognate stimulatory coreceptor CD28. [The UniProt Consortium]