Recombinant Cynomolgus DcR3/TNFRSF6B Fc Chimera Protein, CF

Catalog # Availability Size / Price Qty
9297-DC-100
Recombinant Cynomolgus DcR3/TNFRSF6B Fc Chimera Protein Bioactivity
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Recombinant Cynomolgus DcR3/TNFRSF6B Fc Chimera Protein, CF Summary

Product Specifications

Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured by its ability to inhibit Fas Ligand-induced apoptosis of Jurkat human acute T cell leukemia cells. Cheng, J. et al. (1994) Science 263:1759. The ED50 for this effect is 15‑75 ng/mL in the presence of 20 ng/mL Recombinant Human Fas Ligand/TNFSF6 (Catalog # 126-FL).
Source
Chinese Hamster Ovary cell line, CHO-derived cynomolgus monkey DcR3/TNFRSF6B protein
Cynomolgus Monkey DcR3/TNFRSF6B
(Ala30-His300)
Accession # EHH65162
IEGRMD Human IgG1
(Pro100-Lys330)
N-terminus C-terminus
Accession #
N-terminal Sequence
Analysis
Ala30
Structure / Form
Disulfide-linked homodimer
Predicted Molecular Mass
56 kDa
SDS-PAGE
58-67 kDa, reducing conditions

Product Datasheets

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9297-DC

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

9297-DC

Formulation Lyophilized from a 0.2 μm filtered solution in MES and NaCl.
Reconstitution Reconstitute at 500 μg/mL in water.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & 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.

Scientific Data

Bioactivity Recombinant Cynomolgus DcR3/TNFRSF6B Fc Chimera Protein Bioactivity View Larger

Recombinant Cynomolgus Monkey DcR3/TNFRSF6B Fc Chimera (Catalog # 9297-DC) inhibits Recombinant Human Fas Ligand/TNFSF6 (Catalog # 126-FL) induced apoptosis of Jurkat human acute T cell leukemia cells. The ED50 for this effect is 15-75 ng/mL.

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Background: DcR3/TNFRSF6B

DcR3 (Decoy Receptor 3), also known as TR6 and TNFRSF6B is a 35-40 kDa secreted member of the TNF Receptor superfamily (1). Mature cynomolgus DcR3 contains four tandem TNFR cysteine-rich domains and shares 92% amino acid sequence identity with human DcR3. It binds to the TNF superfamily ligands Fas Ligand, TL1A, and LIGHT (2-5) and interferes with their respective interactions with Fas, DR3, or HVEM and Lymphotoxin beta R (2-4). It blocks apoptosis triggered through either Fas Ligand, TL1A, or LIGHT (2, 3, 5, 6). DcR3 is up-regulated in a variety of cancers and enhances tumor cell immune evasion (2, 3, 7). It also promotes immune suppression by inducing dendritic cell apoptosis (8), inhibiting NK cell and CD8+ T cell activity (2, 4), and inhibiting the production of inflammatory cytokines during viral infection or autoimmunity (9, 10). In humans, proteolytic removal of the C-terminal 53 amino acids generates a shortened DcR3 that retains the ability to block LIGHT but not Fas Ligand induced apoptosis (11). DcR3 can also induce osteoclast formation from monocytes (12).

References
  1. Siakavellas, S.I. and G. Bamias (2015) Inflamm. Bowel Dis. 21:2441.
  2. Pitti, R.M. et al. (1998) Nature 396:699.
  3. Yu, K.Y. et al. (1999) J. Biol. Chem. 274:13733.
  4. Zhang, J. et al. (2001) J. Clin. Invest. 107:1459.
  5. Migone, T.S. et al. (2002) Immunity 16:479.
  6. Han, B. and J. Wu (2009) J. Immunol. 183:8157.
  7. Ge, Z. et al. (2011) Exp. Ther. Med. 2:167.
  8. You, R.I. et al. (2008) Blood 111:1480.
  9. Huang, M.T. et al. (2015) J. Mol. Med. (Berlin) 93:1131.
  10. Mueller, A.M. et al. (2009) J. Neuroimmunol. 209:57.
  11. Wroblewski, V.J. et al. (2003) Biochem. Pharmacol. 65:657.
  12. Yang, C.R. et al. (2004) Cell Death Differ. 11 Suppl 1:S97.
Long Name
Decoy Receptor 3
Entrez Gene IDs
8771 (Human); 107126607 (Cynomolgus Monkey)
Alternate Names
DcR3; DCR3Decoy receptor for Fas ligand; Decoy receptor 3; M68; M68DJ583P15.1.1; TNFRSF6B; TR6; TR6DcR3; tumor necrosis factor receptor superfamily member 6B; tumor necrosis factor receptor superfamily, member 6b, decoy

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