CD274 (B7-H1, PD-L1, Programmed Death Ligand) is a member of the B7 family and is expressed on a variety of tissues including lymphoid cells. It plays an important role in regulation of T cell activation, and is involved in progression of cancer, arthritis and HIV infection (3). CD274 binding to its receptor CD279 (PD-1) on activated T cells can decrease proliferation. Conversely, ligation of CD279 on primed T cells can stimulate IL-10 production. High levels of CD274 present in Renal cell carcinoma are associated with poor prognosis (1). Tumor expressed CD274 can increase apoptosis of tumor specific T cells resulting in better tumor cell survival (2). Gamma Interferon and PHA can up regulate CD274 expression on T cells.
Molecular Structure: A soluble fusion protein consisting of the murine CD8 alpha leader sequence, the mature extracellular (224aa) domain of human CD274 fused to murine IgG2a Fc + hinge (233aa).
Applications:Suitable for use in ELISA. Other applications not tested.
Recommended Dilution:Optimal dilutions to be determined by the researcher.
Storage and Stability:May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
仕様
Size：25ug
Grade：Affinity Purified
Purity：Purified by Protein A affinity chromatography.
Form：Supplied as a liquid in 50mM sodium phosphate, pH 7.5, 100mM potassium chloride, 150mM sodium chloride, 0.2% BSA, 0.04% sodium azide, 5% glycerol. Labeled with Biotin.
