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Recombinant Human OX40/TNFRSF4 Protein (Fc Tag)

Cat:PKSH032843
Manual MSDS

Price: $ 339

Price: $ 117

Size:
50μg 10μg
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  • Expression Host: HEK293 Cells
  • Accession: P43489
  • Applications: BLI
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Product Details
Synonyms Recombinant Human OX40/TNFRSF4 Protein (C-Fc)
Species Human
Expression Host HEK293 Cells
Sequence Leu29-Ala216
Accession P43489
Calculated Molecular Weight 46.8 kDa
Observed Molecular Weight 70 kDa
Tag C-Fc
Bio-activity Loaded Biotinylated Human OX40L-His on AR2G Biosensor, can bind Human OX40-Fc with an affinity constant of 70.3 nM as determined in BLI assay. 
Purity > 95 % as determined by reducing SDS-PAGE.
Endotoxin < 1.0 EU per μg of the protein as determined by the LAL method.
Storage Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.
Shipping This product is provided as lyophilized powder which is shipped with ice packs.
Formulation Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4.
Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the printed manual.
Reconstitution Please refer to the printed manual for detailed information.
Background OX40;also termed CD134 and TNFRSF4; is a T cell co-stimulatory molecule of the TNF receptor superfamily which plays a key role in the survival and homeostasis of effector and memory T cells. OX40 is expressed on CD4+ and CD8+ T cells upon engagement of the TCR by antigen presenting cells along with co-stimulation by CD40-CD40 Ligand and CD28-B7. The interaction between OX40 and OX40 ligand (OX40L) will occur when activated T cells bind to professional antigen-presenting cells (APCs). The T-cell functions; including cytokine production; expansion; and survival; are then enhanced by the OX40 costimulatory signals. OX40 signals are critical for controlling the function and differentiation of Foxp3+ regulatory T cells. OX40-OX40L interaction regulates T-cell tolerance; peripheral T-cell homeostasis; and T-cell-mediated inflammatory diseases.