INTENDED USE AND DESCRIPTION: For use a quantitative control for the determination of human and NHP CTLA-4 concentrations in biological fluids. Controls are supplied lyophilized. Please refer to the lot specific certificate of analysis and Simple Plex Lyophilized Quality Control product insert for additional information.
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.
Product Specifications for Simple Plex Control for Human CTLA-4
Species
Human, Non-human Primate
Applications
Control, Simple Plex Automated Immunoassay
Source
N/A
Preparation & Storage
Shipping Conditions
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Storage
• Store lyophilized controls at 2-8 °C. Lyophilized controls are stable for up to 12 months from date of receipt. • Reconstituted controls are stable for up to 6 months from date of preparation when stored at ≤ -70 °C. Storage at -20° C is not recommended. • Individual frozen aliquots of low and high controls are designed as single-use entities. Thaw directly before use and discard any remaining volume.
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