Human CD274 (B7-H1, PD-L1)-murine Ig Fusion Protein

Size

£735.00

SKU:: C2549-22R
Purity:: >90% (SDS-PAGE). Purified by affinity and size exclusion chromatography
Storage Conditions:: -20°C
Supplier:: United States Biological
Format:: Supplied as liquid in 50mM sodium phosphate pH 7.5, 100mM potassium chloride, 150mM sodium chloride, 0.5mg/ml gentamicin sulfate
Extra Details:: 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). muCD8 apha signal peptide residual amino acids+ linker: (1) kpqapelrgsas CD274 mature EC: (224aa): (13)ftvtvpkdlyvveygsnmtieckfpvekqldlaalivywemedkniiqfvhgeedlkvqhssyrqrarllkdqlslgnaalqitdvklqdagvyrcmisyggadykritvkvnapynkinqrilvvdpvtseheltcqaegypkaeviwtssdhqvlsgkttttnskreeklfnvtstlrintttneifyctfrrldpeenhtaelvipelplahppnerthtr Linker +Murine IgG2a Hinge + Fc (235 aa): (237)gteprgptikpcppckcpapnllggpsvfifppkikdvlmislspivtcvvvdvseddpdvqiswfvnnvevhtaqtqthredynstlrvvsalpiqhqdwmsgkefkckvnnkdlpapiertiskpkgsvrapqvyvlpppeeemtkkqvtltcmvtdfmpediyvewtnngktelnykntepvldsdgsyfmysklrvekknwvernsyscsvvheglhnhhttksfsrtpg(471) Predicted monomeric (non glycosylated) molecular weight: 54.4 kd. The molecule is dimeric and runs at about 120 kd in SDS-PAGE under native conditions. 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. 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. Tumor expressed CD274 can increase apoptosis of tumor specific T cells resulting in better tumor cell survival. Gamma Interferon and PHA can up regulate CD274 expression on T cells. Applications: Suitable for use in ELISA. Other applications have not been tested. Recommended Dilutions: 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 6 months at -20°C after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

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