Human embryonic kidney cell, HEK293-derived mouse IFN-alpha 6/IFNA6 protein Cys24-Glu189
>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
19-22 kDa, under reducing conditions
Measured in an anti-viral assay using L‑929 mouse fibroblast cells infected with encephalomyocarditis (EMC) virus. Vogel, S.N. et al. (1982) Infect. Immunol. 38:681. The ED50 for this effect is <100 pg/mL.
Recombinant Mouse IFN-alpha 6/IFNA6 Protein, CF Scientific Data Examples
Recombinant Mouse IFN-alpha 6/IFNA6 Protein SDS-PAGE
2 μg/lane of Recombinant Mouse IFN-alpha 6/IFNA6 was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 19-22 kDa.
Recombinant Mouse IFN-alpha 6/IFNA6 Protein Bioactivity
Recombinant Mouse IFN-alpha 6/IFN6 (Catalog # 10207-IF) suppresses viral activity on L-929 mouse fibroblast cells infected with encephalomyocarditis (EMC) virus. The ED50 for this effect is <100 pg/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 100 μg/mL in PBS.
The product is shipped with polar packs. 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 to -70 °C under sterile conditions after reconstitution.
Background: IFN-alpha 6/IFNA6
Interferons (IFN) are a family of cytokines with potent antiviral, antiproliferative and immunomodulatory properties, classified based on their binding specificity to cell surface receptors (1). There are more than a dozen closely related IFN alpha subtypes found in both the human and mouse genome, each sharing about 80% amino acid (aa) sequence homology (2, 3). Mature mouse IFNA6 consists of 166 aa and shares 60% aa identity with human IFNA6. The type I IFNs binds to the interferon alpha receptor (IFNAR) which consists of two subunits: IFNAR1 (alpha -subunit) and IFNAR2 (beta -subunit) (4, 5). Individual IFN alpha subtypes are known to display unique efficacies to viral protection, with IFNA6 displaying the superior efficacy controlling influenza virus infection and disease (6). Treatment with IFNA6 DNA 2 weeks post‐MCMV infection proved effective at inhibiting the development of chronic autoimmune myocarditis. IFNA6 is also able to reduce chronic cardiac inflammation. These findings suggest that immunomodulation of both antiviral and autoimmune responses by IFN DNA immunization may be an avenue for improved viral immunotherapy (7, 8).
Pestka, S. et al. (1987) Annu Rev Biochem. 56:727.
Matsumiya, T. et al. (2007) J. Immunol. 179:4542.
Schreiber, G. and J. Piehler (2015) Trends Immunol. 36:139.
Fung, K.Y. et al. (2013) Science 339:1088.
van Pesch, V. et al. (2004) J. Virol. 78:8219.
James, C.M. et al. (2007) Vaccine. 25(10):1856.
Bartlett, E.J. et al. (2002) Immunol. Cell Biol. 5:425.
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 are available to quote. 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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