Recombinant Human TREM-2 (Catalog #9256-T2) bindsfluorescein-conjugated E.coli Bioparticles. The ED50 for this effect is0.15-0.9 μg/mL using an anti-His Tag Antibody (Catalog # MAB050) coatedplate.
Recombinant Human TREM2 His-tag Protein, CF Summary
Details of Functionality
Measured by its ability to bind fluorescein-conjugated E. coli Bioparticles. The ED50 for this effect is 0.15-0.9 μg/mL using a His Tag Antibody coated plate.
Source
Mouse myeloma cell line, NS0-derived human TREM-2 protein His19-Ser174, with a C-terminal 6-His tag
>90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Note
<0.10 EU per 1 μg of the protein by the LAL method.
Applications/Dilutions
Dilutions
Bioactivity
Theoretical MW
18 kDa. Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
SDS-PAGE
25-39 kDa, reducing conditions
Publications
Read Publication using 9256-T2 in the following applications:
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.
Buffer
Lyophilized from a 0.2 μm filtered solution in HEPES and NaCl.
Purity
>90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Reconstitution Instructions
Reconstitute at 500 μg/mL in water.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Human TREM2 His-tag Protein, CF
PLOSL2
TREM2
TREM-2
Trem2a
Trem2b
Trem2c
TREM-2triggering receptor expressed on myeloid cells 2a
Triggering receptor expressed on monocytes 2
triggering receptor expressed on myeloid cells 2
Background
TREM-2 (Triggering Receptor Expressed on Myeloid cells-2) is a 35 kDa type I transmembrane member of the TREM family and Ig superfamily (1). Mature human TREM-2 consists of a 156 amino acid (aa) extracellular domain (ECD) with one V-type Ig-like domain, a 21 aa transmembrane (TM) domain, and a 35 aa cytoplasmic tail (2). Within the ECD, human TREM-2 shares 73% and 74% aa sequence identity with mouse and rat TREM-2, respectively. Soluble forms of the TREM-2 ECD are generated by alternative splicing or proteolytic cleavage, and the cytoplasmic domain can be liberated by gamma-Secretase mediated intramembrane cleavage (3). A positively charged lysine within the transmembrane segment allows association with the signal adapter protein, DAP12 and inhibition of macrophage activation (4, 5). TREM-2 is expressed on macrophages, immature myeloid dendritic cells, osteoclasts, microglia, and adipocytes (5-9). It promotes the differentiation and function of osteoclasts, the production of inflammatory cytokines by adipocytes, insulin resistance, and the phagocytic clearance of bacteria (9-11). In the CNS, TREM-2 binds to ApoE, ApoA1, and ApoB and mediates the clearance of apoptotic neurons, amyloid plaques, and cell debris following demyelination (6-8, 12). TREM-2 also interacts with and modifies signaling through Plexin A1 on dendritic cells and osteoclasts (13). Mutations in TREM-2 or DAP12 are associated with the development of Alzheimer's disease and Nasu-Hakola disease (NHD/PLOSL) which is characterized by presenile dementia and bone cysts (14, 15). Soluble TREM-2 is elevated in cerebrospinal fluid of patients with active multiple sclerosis (MS), and TREM-2 blockade exacerbates disease symptoms in the experimental EAE model of MS (16, 17).
Painter, M.M. et al. (2015) Mol. Neurodegener. 10:43.
Bouchon, A. et al. (2000) J. Immunol. 164:4991.
Wunderlich, P. et al. (2013) J. Biol. Chem. 288:33027.
Hamerman, J. A. et al. (2006) J. Immunol. 177:2051.
Turnbull, I.R. et al. (2006) J. Immunol. 177:3520.
Takahashi, K. et al. (2005) J. Exp. Med. 201:647.
Atagi, Y. et al. (2015) J. Biol. Chem. 290:26043.
Wang, Y. et al. (2016) J. Exp. Med. 213:667.
Cella, M. et al. (2003) J. Exp. Med. 198:645.
Park, M. et al. (2015) Diabetes 64:117.
N'Diaye, E-N. et al. (2009) J. Cell Biol. 184:215.
Poliani, P.L. et al. (2015) J. Clin. Invest. 125:2161.
Takegahara, N. et al. (2006) Nat. Cell Biol. 8:615.
Colonna, M. and Y. Wang (2016) Nat. Rev. Neurosci. 17:201.
Paloneva, J. et al. (2002) Am. J. Hum. Genet. 71:656.
Piccio, L. et al. (2008) Brain 131:3081.
Piccio, L. et al. (2007) Eur. J. Immunol. 37:1290.
Publications for TREM2 (9256-T2)(1)
We have publications tested in 1 confirmed species: Human.
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