Mouse myeloma cell line, NS0-derived mouse Fc alpha/mu R protein Trp47-Arg455, with a C-terminal 6-His tag
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
<0.10 EU per 1 μg of the protein by the LAL method.
N-terminal sequence Analysis
Predicted Molecular Mass
97-112 kDa, reducing conditions
Measured by its binding ability in a functional ELISA. When Recombinant Mouse Fc alpha /μ R is immobilized at 2 μg/mL, 100 μL/well, the concentration of Mouse IgM that produces 50% of the optimal binding response is 0.04-0.24 μg/mL.
Recombinant Mouse Fc alpha/mu R His-tag Protein, CF Scientific Data Examples
Recombinant Mouse Fc alpha/mu R His-tag Protein Binding Activity
When Recombinant Mouse Fc alpha/mu R (Catalog # 10069-FC) is coated at 2ug/mL, 100 uL/well, Mouse IgM binds with an ED50 of 0.04-0.24 μg/mL.
Formulation, Preparation and Storage
What does CF mean?
CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our
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.
What formulation is right for me?
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
Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitute at 500 μg/mL in PBS.
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.
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 °C under sterile conditions after reconstitution.
Background: Fc alpha/mu R
Fc alpha/mu Receptor (FCAMR), designated CD351, is an approximately 60-kDa transmembrane protein that serves as a receptor for IgA and IgM immunoglobulins (1). Mature mouse FCAMR consists of a 420 amino acid (aa) extracellular domain with one Ig-like V-type domain, a 21 aa transmembrane segment, and a 59 aa cytoplasmic domain. Within the ECD, mouse FCAMR shares 51% aa and 80% aa sequence identity with human and rat FCAMR, respectively. FCAMR is expressed on B cells, macrophages, and kidney mesangial cells (2-4). It binds to both IgA and IgM in immune complexes but not to monomeric immunoglobulin (2, 5). FCAMR participates in pathogen clearance as well as foam cell formation by mediating the internalization of IgM-opsonized microbes and oxidized LDL-containing particles (2, 6).
Wang, H. et al. (2016) Front. Immunol. 7:99.
Shibuya, A. et al. (2000) Nat. Immunol. 1:441.
Matesanz-Isabel, J. et al. (2011) Immunol. Lett. 134:104.
McDonald, K.J. et al. (2002) Biochem. Biophys. Res. Commun. 290:438.
Ghumra, A. et al. (2009) Eur. J. Immunol. 39:1147.
Feng, X. et al. (2010) Atherosclerosis 208:396.
Fc alpha/mu Receptor
Entrez Gene IDs
83953 (Human); 64435 (Mouse); 681070 (Rat)
CD351, CD351 antigen, FCA/MR, FCAMR, FKSG87, Fc alpha/mu R, Fc alpha/mu receptor, Fc receptor, IgA, IgM, high affinity, high affinity immunoglobulin alpha and immunoglobulin mu Fc receptor, immunity related factor, receptor for Fc fragment of IgA and IgM, uR
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Which Brands are Currently Available on bio-techne.com? R&D Systems, Tocris Bioscience and ProteinSimple branded products are available to purchase through bio‑techne.com. ProteinSimple branded instruments and Simple Plex Assays are available to quote. ProteinSimple branded instrument consumables and ACD branded products will be available on bio-techne.com in the near future. Novus Biologicals branded products are not currently available on bio‑techne.com and can be found at novusbio.com.
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