Recombinant Mouse FGL2 HA-tag Protein, CF Summary
Product Specifications
| Hemagglutinin Tag (YPYDVPDYA) | Mouse FGL2 (Val20-Pro432) Accession # P12804.1 |
| N-terminus | C-terminus |
Analysis
Product Datasheets
Carrier Free
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.
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.
10691-FL
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. |
| Reconstitution | Reconstitute at 250 μg/mL in 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.
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Scientific Data
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When Recombinant Mouse Fc gamma RIIB/CD32b (1460-CD) is immobilized at 1 µg/mL (100 µL/well), Recombinant Mouse FGL2 HA-tag (Catalog # 10691-FL) binds with an ED50 of 0.1‑0.8 µg/mL.
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2 μg/lane of Recombinant Mouse FGL2 HA-tag (Catalog # 10691-FL) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 61-72 kDa and 244-288 kDa, respectively.
Reconstitution Calculator
Background: FGL2
FGL2 (fibrinogen-like protein 2), also called fibroleukin, is a 64-70 kDa secreted glycoprotein of the Fibrinogen-like superfamily. It has prothrombinase activity and also promotes T regulatory (Treg) activity (1-6). The mouse FGL2 gene encodes a 439 amino acid (aa) protein that contains a 23 aa signal sequence and a 416 aa mature sequence with an N-terminal coiled-coil region and a C-terminal fibrinogen homology domain or FRED (1, 2). A 260-280 kDa FGL2 complex is thought to be a tetramer formed by covalent disulfide linkage of dimers that are associated via coiled-coil interactions (2, 3). Mature mouse FGL2 shares 79% and 91% homology with human and rat FGL2 respectively. FGL2 appears to have two modes of action. One mode involves its prothrombinase activity, which requires calcium and acidic phospholipids (4). This mode is thought to be active during hepatitis viral infections when FGL2, produced by macrophages in response to IFN-gamma, induces hepatic apoptosis and fibrin deposition (7). In addition, FGL2 produced by endothelial cells in response to TNF-alpha within cardiac xenografts or allografts promotes coagulation during acute vascular rejection (7-9). A second mode of action involves soluble (not phospholipid-associated) FGL2 and is independent of prothrombinase activity (2). Soluble FGL2 is required for Treg function, and directly suppresses DC, T, and B cell immune reactivity; consequently, some FGL2-deficent mice develop autoimmune glomerulonephritis (5, 6). In vitro, soluble FGL2 can skew T cell polarization toward Th2 and inhibit proliferation of stimulated T cells and maturation of DC (6). In pregnancy, fetal trophoblast cells secrete FGL2. The immune suppressive mode of FGL2 may prevent early fetal loss; however, the procoagulant mode is thought to mediate infection-triggered abortion (10). In the central nervous system (CNS), FGL2 was shown to be highly expressed in glioma stem cells and primary glioblastoma cells and may serve as a critical immune oncology target (11).
- Koyama, T. et al. (1987) Proc. Natl. Acad. Sci. USA 84:1609.
- Marazzi, S. et al. (1998) J. Immunol.161:138.
- Olson, G. E. et al. (2004) J. Biol. Chem. 279:51266.
- Chan, C. W. Y. et al. (2002) J. Immunol. 168:5170.
- Shalev, I. et al. (2008) J. Immunol.180:249.
- Chan, C. W. Y. et al. (2003) J. Immunol. 170:4036.
- Liu, M. et al. (2006) J. Immunol. 176:7028.
- Mendicino, M. et al. (2005) Circulation 112:248.
- Ning, Q. et al. (2005) J. Immunol. 174:7403.
- Clark, D. A. et al. (2004) Mol. Hum. Reprod. 10:99.
- Yan, J. et al. (2019) Nat Commun. 10:448.
Citations for Recombinant Mouse FGL2 HA-tag 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.
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Citations: Showing 1 - 3
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FGL2 improves experimental colitis related to gut microbiota structure and bile acid metabolism by regulating macrophage autophagy and apoptosis
Authors: Zhao, Y;Xiang, Z;Pan, H;Huang, X;Chen, W;Huang, Z;
Heliyon
Species: Mouse
Sample Types: In Vivo
Applications: In vivo assay -
CD8+ T cell-derived Fgl2 regulates immunity in a cell-autonomous manner via ligation of Fc?RIIB
Authors: Bennion, KB;Liu, D;Dawood, AS;Wyatt, MM;Alexander, KL;Abdel-Hakeem, MS;Paulos, CM;Ford, ML;
Nature communications
Species: Transgenic Mouse
Sample Types: Whole Cells
Applications: Bioassay -
PhIP-Seq Reveals Autoantibodies for Ubiquitously Expressed Antigens in Viral Myocarditis
Authors: MT Rasquinha, N Lasrado, E Petro-Turn, E Weaver, T Venkataram, D Anderson, U Laserson, HB Larman, J Reddy
Biology, 2022-07-13;11(7):.
Species: Mouse
Sample Types: Serum
Applications: ELISA Capture
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