|Product Overview:||Recombinant Mouse Tnfsf4(Gln49-Leu198) fused with His tag at N-terminal was expressed in HEK293.|
|Description:||OX40 Ligand (OX40L), also known as gp34, is a type II transmembrane glycoprotein belonging to the TNF superfamily. Murine OX40L cDNA encodes a 198 amino acid (aa) residue protein comprised of a 28 aa N-terminal cytoplasmic domain, a 20 aa transmembrane segment, and a 150 aa C-terminal extracellular domain. Human and murine OX40L share 46% sequence identity at the amino acid level. The OX40L is expressed on activated antigen presenting cells such as B cells, macrophages, dendritic cells, and on endothelial cells at the site of inflammation. The receptor for OX40L is OX40 (CD134) that is expressed predominantly on activated CD4+ T cells. Expression of OX40 is transient following engagement of T cell receptors. Ligation of OX40L by OX40 stimulates proliferation and differentiation of activated B cells, and increases immunoglobulin secretion. The expression of OX40L on B cells is up-regulated by CD40 ligation. Engagement of the OX40-OX40L system has co-stimulatory effects on T cells by stimulating the production of cytokines by T helper cells and increasing the survival of memory T cells. Blocking of the OX40-OX40L interaction in vitro inhibits co-stimulation resulting in decreased T cell proliferation and adhesion of T cells to endothelial cells. Inhibition of the OX40-OX40L interaction in disease models has beneficial effects in acute graft-versus-host disease, inflammatory bowel disease and decreases the development of collagen-induced arthritis and experimental leishmaniasis.|
|Predicted N Terminal:||His|
|Form:||Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.|
|Bio-activity:||Measured by its ability to co-stimulate IL-2 secretion by mouse T cells in the presence of anti-CD3. The ED50 for this effect is typically 10-30 ng/mL in the presence of a cross-linking antibody, Mouse Anti-polyHistidine Monoclonal Antibody.|
|Molecular Mass:||Predicted Molecular Mass: 18 kDa
SDS-PAGE: 21-25 kDa, reducing conditions
|Endotoxin:||<1.0 EU per 1 μg of the protein by the LAL method.|
|Purity:||>95%, by SDS-PAGE under reducing conditions and visualized by silver stain|
|Storage:||Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 centigrade as supplied.
1 month, 2 to 8 centigrade under sterile conditions after reconstitution.
3 months, -20 to -70 centigrade under sterile conditions after reconstitution.
|Reconstitution:||Reconstitute at 10 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.|
|Shipping:||The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.|
|Gene Name:||Tnfsf4 tumor necrosis factor (ligand) superfamily, member 4 [ Mus musculus ]|
|Synonyms:||TNFSF4; tumor necrosis factor (ligand) superfamily, member 4; tumor necrosis factor ligand superfamily member 4; OX40 ligand; atherosclerosis 1; tax-transcriptionally activated glycoprotein 1 ligand; Ath1; gp34; Ath-1; Ox40l; TXGP1; CD134L; OX-40L; Txgp1l;|
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