Recombinant Mouse OX40 Ligand/TNFSF4 Protein

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Product Details

Summary
Reactivity MuSpecies Glossary
Applications Bioactivity

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Recombinant Mouse OX40 Ligand/TNFSF4 Protein Summary

Details of Functionality
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 10-30 ng/mL in the presence of a cross-linking antibody, Mouse Anti-polyHistidine Monoclonal Antibody (Catalog # MAB050).
Source
Mouse myeloma cell line, NS0-derived mouse OX40 Ligand/TNFSF4 protein
Gln49-Leu198, with an N-terminal 10-His tag
Accession #
N-terminal Sequence
His
Protein/Peptide Type
Recombinant Proteins
Gene
Tnfsf4
Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Note
<1.0 EU per 1 μg of the protein by the LAL method.

Applications/Dilutions

Theoretical MW
18 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
SDS-PAGE
21-25 kDa, reducing conditions
Publications
Read Publications using
1236-OX in the following applications:

Packaging, Storage & Formulations

Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
Reconstitution Instructions
Reconstitute at 10 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Recombinant Mouse OX40 Ligand/TNFSF4 Protein

  • CD134 ligand
  • CD134L
  • CD252 antigen
  • CD252
  • Glycoprotein Gp34
  • gp34
  • OX40 antigen ligand
  • OX40 Ligand
  • OX40L
  • OX-40L
  • OX4OL
  • TAX transcriptionally-activated glycoprotein 1
  • tax-transcriptionally activated glycoprotein 1 (34kD)
  • tax-transcriptionally activated glycoprotein 1, 34kD
  • TNFSF4
  • tumor necrosis factor (ligand) superfamily, member 4
  • tumor necrosis factor ligand superfamily member 4
  • TXGP1

Background

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 (1). Human and murine OX40L share 46% sequence identity at the amino acid level (1). 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 (2). Ligation of OX40L by OX40 stimulates proliferation and differentiation of activated B cells, and increases immunoglobulin secretion (3, 4). The expression of OX40L on B cells is up-regulated by CD40 ligation (3). 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 (2, 5). 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 (6).

  1. Baum, P.R. et al. (1994) EMBO J. 13:3992.
  2. Gramaglia, I. et al. (1999) J. Immunol. 161:6510.
  3. Stuber, E. et al. (1995) Immunity 2:507.
  4. Malstrom, V. et al. (2001) J. Immunol. 166:6972.
  5. Maxwell, J.R. et al. (2000) J. Immunol. 164:107.
  6. Weinberg, A.D. (2002) Trends Immunol. 23:102.

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Publications for OX40 Ligand/TNFSF4 (1236-OX)(3)

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Bioinformatics

Gene Symbol Tnfsf4
Entrez
Uniprot