Recombinant Human TREM-1 Fc Chimera Protein, CF
R&D Systems, part of Bio-Techne | Catalog # 1278-TR
Key Product Details
Source
NS0
Accession #
Structure / Form
Disulfide-linked homodimer
Conjugate
Unconjugated
Applications
Bioactivity
Product Specifications
Source
Mouse myeloma cell line, NS0-derived human TREM-1 protein
| Human TREM-1 (Ala21 - Arg200) Accession # Q9NP99 |
IEGRMD | Human IgG1 (Pro100 - Lys330) |
| N-terminus | C-terminus |
Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
N-terminal Sequence Analysis
Ala21
Predicted Molecular Mass
47 kDa (monomer)
SDS-PAGE
60-70 kDa, reducing conditions
Activity
Measured by its ability to block anti-TREM-1-induced TNF-alpha secretion by human peripheral blood mononuclear cells (PBMC).
At 1 µg/mL, Recombinant Human TREM‑1 Fc Chimera is able to block > 70% of Goat Anti-Human TREM-1 (20 µg/mL, 200 µL/well) (Catalog # AF1278) induced TNF-alpha released from 1 x 105 cells.
At 1 µg/mL, Recombinant Human TREM‑1 Fc Chimera is able to block > 70% of Goat Anti-Human TREM-1 (20 µg/mL, 200 µL/well) (Catalog # AF1278) induced TNF-alpha released from 1 x 105 cells.
Formulation, Preparation and Storage
1278-TR
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS. |
| Reconstitution |
Reconstitute at 100 μg/mL in sterile PBS.
|
| 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.
|
Background: TREM-1
TREM-1 (Triggering Receptor Expressed on Myeloid cells) is a type I transmembrane protein having a single Ig-like domain. It associates with the adapter protein, DAP12, to deliver an activating signal. Several other TREM family members have been reported that are structurally similar but share less than 30% amino acid identity. TREM-1 is expressed on blood neutrophils and a subset of monocytes, and expression is up-regulated by bacterial LPS. The natural ligand for TREM-1 has not been identified. However, engagement of TREM-1 with an agonist monoclonal antibody leads to expression of IL-8, MCP-1 and TNF-alpha, suggesting that this receptor plays an important role in inflammatory responses. TREM-1 is expressed at high levels on neutrophils of patients with microbial sepsis and in mice with LPS‑induced shock. Blockade of TREM-1 with a TREM‑1/Fc fusion protein protected mice against LPS‑induced shock. Human and mouse TREM-1 share approximately 42% amino acid sequence homology (1 - 3).
References
- Bouchon, A. (2000) J. Immunol. 164:4991.
- Bouchon, A. (2001) Nature 410:1103.
- Nathan, C. and A. Ding (2001) Nature Med. 7:530.
Long Name
Triggering Receptor Expressed on Myeloid Cells 1
Alternate Names
CD354, TREM1
Gene Symbol
TREM1
UniProt
Additional TREM-1 Products
Product Documents for Recombinant Human TREM-1 Fc Chimera Protein, CF
Product Specific Notices for Recombinant Human TREM-1 Fc Chimera Protein, CF
For research use only
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