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Catalog # HM2304

sTREM-1, Human, mAb 15G7


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Monoclonal antibody 15G7 recognizes human triggering receptor expressed on myeloid cells 1 (TREM-1). TREM-1 is member of a family of cell surface receptors which function as modulators of the inflammatory response in sepsis. TREM-1 is widely expressed on cells of the myeloid lineage and acts as an inflammatory trigger and amplifier after fungal and bacterial contact. Expression is predominantly seen on neutrophils, monocytes, macrophages, microglia, osteoclasts and dendritic cells. The TREM family consist of TREM-1, TREM-2, TREM-3 (mouse) and TREM-like transcript 1&2. They are members of the transmembrane immunoglobulin superfamily. TREM-1 is a 30 kD monomeric protein synthesized as a 234 amino acid (aa) precursor with a signal peptide (16 aa), an extracellular domain (184 aa), a transmembrane domain (29 aa), and a short cytoplasmic domain (5 aa). The ligand of TREM-1is unknown. The engagement of TREMs, after association with the adapter protein DAP12 (DNA activating protein 12) which contains an immunoreceptor tyrosine-based activation motif, triggers a signalling pathway that leads to intracellular calcium mobilization, actin cytoskeleton rearrangement, and activation of several transcription factors. TREM-1 acts in synergy with Toll-like receptor signaling pathways in amplifying the inflammatory response.
During infections, receptor expression is modulated and soluble TREM-1 (sTREM-1, 17 kDa) is released. TREM-1 is shed from the membrane of activated phagocytes and can be found as sTREM-1 in tissue and body fluids like plasma and bronchoalveolar lavage fluid (BAL). Some studies suggest that sTREM1 is transcribed from an alternative mRNA. sTrem-1 is unable to transmit a signal but competes for binding with endogenous ligands. Thereby dampen the amplification loop which is activated when the infection is started. sTREM1 levels are possibly a prognostic marker for sepsis. However, some other studies show also elevated levels in non-infectious causes of inflammation (e.g. Crohn disease). At least sTREM-1 in biological fluids often correlates with severity of disease.

Immuno assays

For Immuno assays dilutions to be used depend on detection system applied. It is recommended that users test the reagent and determine their own optimal dilutions. The typical starting working dilution is 1:50.

Product type
Monoclonal antibodies
100 µg, 20 µg
0.2 ml (100 µg/ml) 0.2 µm filtered antibody solution in PBS, containing 0.1% bovine serum albumin and 0.02% sodium azide.
Mouse IgG1
soluble Triggering receptor expressed on myeoloid cells 1
Storage and stability
Product should be stored at 4°C. Under recommended storage conditions, product is stable for at least one year. The exact expiry date is indicated on the label.
For research use only. Not for use in or on humans or animals or for diagnostics. It is the responsibility of the user to comply with all local/state and federal rules in the use of this product. Hycult Biotech is not responsible for any patent infringements that might result from the use or derivation of this product.
Autoimmunity, Infectious diseases
CoA-TDS Safety Data Sheet

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