TREM-2 Protein, Human (Biotinylated, HEK293, His-Avi)

TREM-2 Protein is a receptor for amyloid beta protein 42, lipoprotein particles, and apolipoprotein. TREM-2 Protein is involved in cell proliferation and apoptosis through Wnt/β, MTOR, PI3K and NF-kappa-B signaling pathways. TREM-2 Protein is expressed by macrophages, immature monocyte-derived dendritic cells, osteoclasts, and microglia to activate the immune response. TREM-2 Protein, Human (Biotinylated, HEK293, His-Avi) is the recombinant human-derived TREM-2 protein, expressed by HEK293 , with C-Avi, C-His labeled tag. The total length of TREM-2 Protein, Human (Biotinylated, HEK293, His-Avi) is 156 a.a., with molecular weight of 30-45 kDa.

Triggering receptor expressed on myeloid cells 2 (TREM-2) can form a receptor signaling complex with TYROBP, mediating signaling and cell activation after ligand binding. TREM-2 is a receptor for amyloid beta protein 42 and mediates its uptake and degradation by microglia. Binding to amyloid-β42 mediates microglia activation, proliferation, migration, apoptosis and the expression of pro-inflammatory cytokines such as IL6R, CCL3 and anti-inflammatory cytokine ARG1. TREM-2 is a receptor for lipoprotein particles (such as LDL, VLDL, and HDL) and apolipoproteins (such as APOA1, APOA2, APOB, APOE, APOE2, APOE3, APOE4, and CLU) and enhances their uptake in microglia. TREM-2 acts as an upstream regulator of the Wnt/ beta-catenin signaling cascade to regulate microglial cell proliferation. TREM-2 acts on the metabolism of microglia by activating MTOR. TREM-2 inhibited the response of PI3K and NF-kappa-B signals to lipopolysaccharide. It can promote phagocytosis, inhibit the production of proinflammatory cytokines and nitric oxide, inhibit cell apoptosis, and increase the expression of IL10 and TGFB. During oxidative stress, it promotes anti-apoptotic NF-kappa-B signaling and ERK signaling. TREM-2 can trigger immune response activation of macrophages and dendritic cells mediating cytokine-induced fusion of macrophages to form multinucleated giant cells, and in dendritic cells mediating upregulation of chemokine receptor CCR7 and maturation and survival of dendritic cells^{[1][2][3][4][5][6]}.

1. Immobilized Biotinylated Human TREM2 His at 2 μg/mL (100 μL/Well) on the plate. Dose response curve for Anti-TREM2 Antibody hFc with the EC₅₀ of 65.1 ng/mL determined by ELISA.
2. Immobilized Anti-TREM2 Antibody, hFc Tag at 2 μg/mL (100 μl/well) on the plate. Dose response curve for Biotinylated Human TREM2, His Tag with the EC₅₀ of 0.53 μg/mL determined by ELISA.

Human

HEK293

C-Avi;C-His

Q9NZC2 (H19-S174)

54209  [NCBI]

30-45 kDa

Greater than 95% as determined by Tris-Bis PAGE.

Lyophilized powder.

Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4. Normally 5% trehalose is added as protectant before lyophilization.

<1 EU/μg, determined by LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O.

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.