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CTLA-4 or CTLA4 (cytotoxic T-lymphocyte-associated protein 4), also known as CD152 (cluster of differentiation 152), is a protein receptor that functions as an immune checkpoint and downregulates immune responses. CTLA-4 is constitutively expressed in regulatory T cells but only upregulated in conventional T cells after activation – a phenomenon which is particularly notable in cancers. It acts as an "off" switch when bound to CD80 or CD86 on the surface of antigen-presenting cells. The CTLA-4 protein is encoded by the Ctla-4 gene in mice and the CTLA-4 gene in humans.

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2ug(R: reducing conditions)
Immobilized Recombinant Mouse B7-1 (C-Fc) at 4ug/mL (50 uL/well) can bind Mouse CD152, his tag with EC50 of 16.27-21.58 ng/mL.
2ug(R: reducing conditions)
Immobilized Recombinant Mouse B7-1 (C-Fc) at 4ug/mL (50 uL/well) can bind Mouse CD152, his tag with EC50 of 16.27-21.58 ng/mL.