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Recombinant Human DR6/TNFRSF21 Fc Chimera Protein, CF

Catalog # 144-DR | R&D Systems, Inc. a Bio-Techne Brand
Catalog #
Size / Price

Key Product Details

Accession #


Sf 21 (baculovirus)

Structure / Form

Disulfide-linked homodimer





Product Specifications


Spodoptera frugiperda, Sf 21 (baculovirus)-derived human DR6/TNFRSF21 protein
Human DR6
(Gln42 - Leu350)
Accession # O75509
(Pro100 - Lys330)
N-terminus C-terminus


>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.

Endotoxin Level

<0.01 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis


Predicted Molecular Mass

60.3 kDa (monomer)


65-75 kDa, reducing conditions


Measured by its binding ability in a functional ELISA.

When recombinant human APP770 is coated at 2 μg/mL (100 μL/well), the concentration of Recombinant Human DR6/TNFRSF21 that produces 50% of the optimal binding response is found to be approximately 20‑100 ng/mL.

Formulation, Preparation and Storage

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitute at 100 μg/mL in sterile PBS.

Reconstitution Buffer Available:
Size / Price
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.

Background: DR6/TNFRSF21

Death Receptor 6 (DR6), also known as TNFRSF21 and CD358, is a type I transmembrane protein in the TNF receptor superfamily (1). Human DR6 consists of a 308 amino acid (aa) extracellular domain (ECD) with four cysteine‑rich motifs, a 21 aa transmembrane segment, and a 285 aa palmitylated cytoplasmic region that contains one death domain (2, 3). Within the ECD, human and mouse DR6 share 82% aa sequence identity. DR6 is expressed as an approximately 110 kDa molecule that carries extensive N‑linked and O‑linked glycosylation in its extracellular region (3, 4). Among hematopoietic cells, DR6 is expressed on monocytes, resting CD4+ T cells, and pro‑, pre‑, and naïve B cells (5 ‑ 7). DR6 knockout mice exhibit a Th2‑biased immune response characterized by exaggerated Th2 and B cell responsiveness in combination with reduced Th1 cell responsiveness and inflammatory leukocyte infiltration (6 ‑ 9). DR6 knockout mice are resistant to induced airway inflammation and experimental autoimmune encephalitis but more susceptible to severe graft versus host disease (9 ‑ 11). DR6 is also expressed on developing neurons where it can bind a shed 35 kDa N‑terminal fragment of APP or a fragment of APLP2 (12, 13). This APP fragment is generated following deprivation of neurotrophic factors, and its binding to DR6 triggers DR6‑mediated axonal pruning (12). DR6 is constitutively expressed on some prostate cancer cells and can be induced by TNF‑ alpha on others (3, 4).


  1. Benschop, R. et al. (2009) Adv. Exp. Med. Biol. 647:186.
  2. Pan, G. et al. (1998) FEBS Lett. 431:351.
  3. Klima, M. et al. (2009) Biochim. Biophys. Acta 1793:1579.
  4. Kasof, G.M. et al. (2001) Oncogene 20:7965.
  5. Matesanz-Isabel, J. et al. (2011) Immunol. Lett. 134:104.
  6. Schmidt, C.S. et al. (2003) J. Exp. Med. 197:51.
  7. Liu, J. et al. (2001) Immunity 15:23.
  8. Zhao, H. et al. (2001) J. Exp. Med. 194:1441.
  9. Venkataraman, C. et al. (2006) Immunol. Lett. 106:42.
  10. Schmidt, C.S. et al. (2005) J. Immunol. 175:2286.
  11. Liu, J. et al. (2002) J. Immunol. 169:3993.
  12. Nikolaev, A. et al. (2009) Nature 457:981.
  13. Kuester, M. et al. (2011) J. Mol. Biol. 409:189.

Long Name

Death Receptor 6

Alternate Names

BM-018, CD358, TNFRSF21

Entrez Gene IDs

27242 (Human); 94185 (Mouse); 316256 (Rat)

Gene Symbol



Product Documents for Recombinant Human DR6/TNFRSF21 Fc Chimera Protein, CF

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Recombinant Human DR6/TNFRSF21 Fc Chimera Protein, CF

For research use only

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