Product Specifications for Recombinant Mouse IFN-alpha 11 Protein, CF
Human embryonic kidney cell, HEK293-derived mouse IFN-alpha 11 protein Cys24-Ala190
>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
18-24 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 <20 pg/mL.
Scientific Data Examples for Recombinant Mouse IFN-alpha 11 Protein, CF
Recombinant Mouse IFN-alpha 11 Protein Bioactivity
Recombinant Mouse IFN-alpha 11 Protein (Catalog # 10329-IF) suppresses viral activity on L-929 mouse fibroblast cells infected with encephalomyocarditis (EMC) virus. The ED50 for this effect is <20 pg/mL.
Recombinant Mouse IFN-alpha 11 Protein SDS-PAGE
2 μg/lane of Recombinant Mouse IFN-alpha 11 (Catalog # 10329-IF) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 18-24 kDa.
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 with Trehalose.
Reconstitute at 100 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 to -70 °C under sterile conditions after reconstitution.
Background: IFN-alpha 11
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). The extracellular domain (ECD) of mature mouse IFNA11 shares 81% amino acid sequence identity with rat IFNA11. The closest homolog of IFNA11 identified in human is IFNA5. The type I IFNs bind 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 IFNA11 showing high activity when compared to other subtypes (4). IFNA11 stimulates NK cells resulting in activation and improved effector functions. Treatment with IFNA11 inhibits the FV-replication in acutely infected mice. IFNA11 is not only effective in retroviral infections but also is effective in herpes virus infections. IFNA11 has a potential as an efficient drug for treatment of many different viral diseases (6).
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.
van Pesch, V. et al. (2004) J. Virol. 78:8219.
James C.M. et al. (2007) Vaccine. 25(10):1856.
Gibbert K. et al. (2012) PLoSPathogens 8:1.
Interferon alpha 11
Entrez Gene IDs
15964 (Mouse); 298211 (Rat)
IFN-alpha 11, IFNA11, IFNalpha 11
Citations for Recombinant Mouse IFN-alpha 11 Protein, CF
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Product Documents for Recombinant Mouse IFN-alpha 11 Protein, CF
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