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Recombinant Human TREM-1 Fc Chimera Protein, CF

Catalog #: 1278-TR
3 Citations Datasheet / COA / SDS
Catalog # Availability Size / Price Qty
1278-TR-050
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Citations (3)
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Summary Product Datasheets Carrier Free Data Images Reconstitution Calculator Background Related Research Areas

Recombinant Human TREM-1 Fc Chimera Protein, CF Summary

Product Specifications

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.
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.
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
Accession #
Q9NP99
N-terminal Sequence
Analysis
Ala21
Structure / Form
Disulfide-linked homodimer
Predicted Molecular Mass
47 kDa (monomer)
SDS-PAGE
60-70 kDa, reducing conditions

Product Datasheets

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1278-TR

Product Datasheet
COA
SDS

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.

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.
  • 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.
Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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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
  1. Bouchon, A. (2000) J. Immunol. 164:4991.
  2. Bouchon, A. (2001) Nature 410:1103.
  3. Nathan, C. and A. Ding (2001) Nature Med. 7:530.
Long Name
Triggering Receptor Expressed on Myeloid Cells 1
Entrez Gene IDs
54210 (Human); 58217 (Mouse)
Alternate Names
CD354 antigen; CD354; TREM1; TREM-1; TREM-1Triggering receptor expressed on monocytes 1; triggering receptor expressed on myeloid cells 1; triggering-receptor TREM1

Citations for Recombinant Human TREM-1 Fc Chimera Protein, CF

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

3 Citations: Showing 1 - 3
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  1. Molecular basis for the loss-of-function effects of the Alzheimer's disease-associated R47H variant of the immune receptor TREM2
    Authors: A Sudom, S Talreja, J Danao, E Bragg, R Kegel, X Min, N Sharkov, E Marcora, S Thibault, J Bradley, S Wood, AC Lim, H Chen, S Wang, IN Foltz, S Sambashiva, Z Wang
    J. Biol. Chem., 2018-05-24;0(0):.
    Applications: Bioassay
  2. TREM2 Is a Receptor for ?-Amyloid that Mediates Microglial Function
    Authors: Y Zhao, X Wu, X Li, LL Jiang, X Gui, Y Liu, Y Sun, B Zhu, JC Piña-Cresp, M Zhang, N Zhang, X Chen, G Bu, Z An, TY Huang, H Xu
    Neuron, 2018-03-07;97(5):1023-1031.e7.
    Species: Human
    Sample Types: Recombinant Protein
    Applications: Bioassay, Immunoprecipitation
  3. Soluble triggering receptor expressed on myeloid cell-1 is increased in patients with ventilator-associated pneumonia: a preliminary report.
    Authors: Horonenko G, Hoyt JC, Robbins RA, Singarajah CU, Umar A, Pattengill J, Hayden JM
    Chest, 2007-05-15;132(1):58-63.
    Applications: ELISA (Standard)

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