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Applications: Screen for activators or inhibitors of CTLA4 signaling in a cellular context
Characterize the biological activity of CTLA4 and its interactions with ligands
Background: CTLA4, also known as CD152, is a protein receptor that functioning as an immune checkpoint. It is expressed by activated T cells and transmits an inhibitory signal to T cells. CTLA4 is homologous to the T-cell co-stimulatory protein, CD28, and both molecules bind to CD80 (B7-1) and CD86 (B7-2) on antigen-presenting cells. CTLA-4 binds to CD80 and CD86 with greater affinity and avidity than CD28 thus enabling it to outcompete CD28 for its ligands and act as an "off" switch when bound to CD80 or CD86. CTLA-4 is an important immunotherapy target for the treatment of cancer and autoimmune diseases.
Description: Recombinant Jurkat T cell expressing firefly luciferase gene under the control of IL-2 promoter with constitutive expression of human CTLA4 (Cytotoxic T-Lymphocyte Associated Protein, CD152; GenBank Accession #NM_005214).
Host Cell Line: Jurkat
Mycoplasma Testing: The cell line has been screened using the PCR-based Venor™GeM Mycoplasma Detection kit (Sigma-Aldrich) to confirm the absence of Mycoplasma species.
Storage Stability: Immediately upon receipt, store in liquid nitrogen.
Supplied As: Each vial contains 2 x 10^6 cells in 1 ml of 10% DMSO
Warnings: Avoid freeze/thaw cycles.
Biosafety Level: BSL-1
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