CD152 Antibody [UC10-4F10-11]

The UC10-4F10-11 monoclonal antibody specifically reacts with the mouse Cytotoxic T-Lymphocyte Antigen-4 (CTLA-4), also known as CD152. It is a protein with a structure similar to CD28 regarding the genomic organization, amino acid sequence, and structure. CTLA-4 is expressed on activated T cells and CD25+/CD4+ Treg lymphocytes and binds the members of the B7 family, B7-1 (CD80) and B7-2 (CD86), with higher affinity than CD28. CD28 seems to provide opposing signal to T lymphocytes, while CD152 inhibits the T lymphocytes progression to an activated state and their proliferation, CD28 is a costimulator. The mouse UC10 -4F10-11 monoclonal antibody does not cross-react with the rat leukocytes.

The monoclonal antibody was purified utilizing affinity chromatography. The endotoxin level is determined by LAL test to be less than 0.01 EU/µg of the protein.

Alegre, M. L., Noel, P. J., Eisfelder, B. J., Chuang, E., Clark, M. R., Reiner, S. L., Thompson, C. B. (1996) . Regulation of surface and intracellular expression of CTLA4 on mouse T cells.The Journal of Immunology,157 (11), 4762-4770.

Walunas, T. L., Lenschow, D. J., Bakker, C. Y., Linsley, P. S., Freeman, G. J., Green, J. M., ... Bluestone, J. A. (1994) . CTLA-4 can function as a negative regulator of T cell activation.Immunity,1 (5), 405-413.

Cilio, C. M., Daws, M. R., Malashicheva, A., Sentman, C. L., Holmberg, D. (1998) . Cytotoxic T Lymphocyte Antigen 4 Is Induced in the Thymus upon In Vivo Activation and Its Blockade Prevents Anti-CD3mediated Depletion of Thymocytes.The Journal of experimental medicine,188 (7), 1239-1246.