Human TREM-1 Antibody

AF1278 1 Citation Datasheet / COA / SDS

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AF1278
AF1278-SP

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Summary Data Examples Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human TREM-1 Antibody Summary

Species Reactivity

Human

Specificity

Detects human TREM-1 in ELISAs and Western blots. In ELISAs, less than 0.2% cross-reactivity with recombinant mouse (rm) TREM‑1 and rmTREM‑2b is observed.

Source

Polyclonal Goat IgG

Purification

Antigen Affinity-purified

Immunogen

S. frugiperda insect ovarian cell line Sf 21-derived recombinant human TREM-1
Met1-Arg200
Accession # Q9NP99

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.

Endotoxin Level

<0.10 EU per 1 μg of the antibody by the LAL method.

Label

Unconjugated

Applications

Recommended Concentration

Sample

Western Blot

1 µg/mL

See below

Flow Cytometry

2.5 µg/10⁶ cells

Human whole blood monocytes and neutrophils

Agonist Activity

Measured by its ability to stimulate TNF-alpha secretion by human peripheral blood mononuclear cells. Bouchon, A. et al. (2001) Nature 410:1103 and Bouchon, A. et al. (2000) J. Immunology 164:4991.
The ED₅₀ for this effect is typically 2 - 6 μg/mL.

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Human TREM-1 Sandwich Immunoassay

Recommended Concentration

Reagent

ELISA Capture (Matched Antibody Pair)

0.2-0.8 µg/mL

Use in combination with:

Detection Reagent: Human TREM‑1 Biotinylated Antibody (Catalog # BAF1278)

Standard: Recombinant Human TREM-1 Fc Chimera Protein, CF (Catalog # 1278-TR)

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Data Example

Western Blot

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Detection of Human TREM‑1 by Western Blot. Western blot shows lysates of human granulocytes. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human TREM‑1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1278) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). A specific band was detected for TREM‑1 at approximately 40 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS.

Reconstitution Buffer Available

Reconstitution Buffer 1 (PBS)

Shipping

The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C

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.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

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

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

Product Datasheets

Product Datasheet

COA

SDS

Related Research Areas

Citation for Human TREM-1 Antibody

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.

1 Citation: Showing 1 - 1

Metalloproteinases shed TREM-1 ectodomain from lipopolysaccharide-stimulated human monocytes.
Authors: Gomez-Pina V, Soares-Schanoski A, Rodriguez-Rojas A, Del Fresno C, Garcia F, Vallejo-Cremades MT, Fernandez-Ruiz I, Arnalich F, Fuentes-Prior P, Lopez-Collazo E
J. Immunol., 2007;179(6):4065-73.
Species: Human
Sample Types: Cell Lysates
Applications: Western Blot