Human Recombinant sOX40 (from Hi-5 Insect Cells)

Supplier: PEPROTECH INC.
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10770-886EA 132.81 USD
10770-886 10770-888 10770-890 10770-892 10770-894 10770-896
Human Recombinant sOX40 (from Hi-5 Insect Cells)
Proteins and Peptides

OX40L, a member of the TNF superfamily of structurally related proteins, exists primarily as a type II membrane-bound, non-covalently linked, homotrimeric protein. It is expressed on antigen-presenting cells (APCs), such as dendritic cells and activated B-cells, as well as on various other cells such as vascular endothelial cells, mast cells, and natural killer cells. OX40L signals specifically through the OX40 receptor, which is expressed predominantly on CD4+ T cells, but also on certain activated CD8+ T cells. OX40/OX40L functions as a costimulatory signal, which is required for a productive interaction between antigen-presenting cells and their target T-cells. It enhances cell proliferation and survival, and increases expression of RANTES, IL-2, IL-3, and IFNγ. OX40/OX40L signaling plays an important role in immuno-regulatory communication, enabling the immune system to distinguish between “friend vs. foe” during activation; a mechanism typically termed immuno-tolerance. Recombinant Human sOX40 Ligand is a glycosylated 133 amino acid protein corresponding to the extracellular TNF homologous domain of the full length transmembrane protein. It migrates with an apparent molecular mass of 15.5 – 25.0 kDa on SDS-PAGE. Recombinant Human sOX40 Ligand has a calculated, theoretical molecular weight of 15.4 kDa.


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