| Application | Recommended Dilution |
|---|---|
| IHC | 1:50-1:200 |
CTLA4 is not constitutively expressed on T lymphocytes but is induced following T cell activation. CTLA4 is an inhibitory receptor that helps to maintain self-antigen immunity. CTLA4 is upregulated after TCR activation and binds B7 with a higher affinity than T lymphocyte receptor CD28, leading to decreased T cell proliferation and lessened cytokine secretion. CTLA4 inhibition improves a wide range of immunological responses involving helper T cells, while CTLA4 interaction on Treg improves their suppressive activity. CTLA4 is a protein that regulates tumor immune responses and is regarded as a potential target for tumor immunotherapy.
CUSABIO cloned CTLA4 antibody-coding genes into plasma vectors and then transfected these vector clones into mammalian cells using a lipid-based transfection reagent. Following transient expression, the recombinant antibodies against CTLA4 were harvested and characterized. The recombinant CTLA4 antibody was purified by Affinity-chromatography from the culture medium. It can be used to detect CTLA4 protein from Human in the ELISA, IHC. Email: support@cusabio.com
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