ligand and transmembrane spliced cytotoxic T lymphocyte associated antigen 4
Background
CTLA-4/CD152 (Cytotoxic T-Lymphocyte Antigen 4) is a transmembrane T cell inhibitory molecule that is expressed as a covalent homodimer. CTLA-4 is recruited from intracellular vesicles to the immunological synapse beginning 1-2 days after T cell activation. It forms a linear lattice with B7-1 on APC, inducing negative regulatory signals and ending CD28-dependent T cell activation. Mice deleted for CTLA-4 develop lethal autoimmune reactions due to continued T cell activation and poor control by regulatory T cells which constitutively express CTLA-4.
FAQs for CTLA-4 (DY476). (Showing 1 - 1 of 1 FAQs).
What is the difference between the Quantikine and Duoset ELISA kits?
Our Quantikine kits are fully optimized and validated for the sample types listed on the product specific webpage and datasheet, as this can vary between kits. Each kit is supplied ready to use with one pre-coated 96-well plate, a detection antibody directly conjugated to HRP, and all other necessary reagents. These kits are ideal for researchers who want the convenience of a ready to use and optimized ELISA product. Some of these kits are also available prepackaged in larger 6 and 50 plate sizes.Our DuoSet Kits, in contrast, are ELISA development kits containing the capture and detection antibody, the mass-value calibrated standard, and streptavidin-HRP to prepare approximately 5 or 15 plates. Ancillary reagents will need to be used/purchased, and for most kits, we will recommend one of our Ancillary Reagent Kits, which contain the reagents we use ourselves in-house. DuoSet kits are validated only for cell culture supernatant samples and therefore require further development and validation for accurate measurement in more complex samples such as serum and plasma. Our DuoSet Kits offer an economical, flexible alternative for the experienced ELISA user.
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