Recombinant Human IFN-beta Protein, CF Summary
Additional Information |
S.A approximately 2.8x10^8 IU/mg compared to WHO standard |
Details of Functionality |
Measured in anti-viral assays using HeLa human cervical epithelial carcinoma cells infected with encephalomyocarditis (EMC) virus. Meager, A. (1987) in Lymphokines and Interferons, a Practical Approach. Clemens, M.J. et al. (eds): IRL Press. 129. The ED 50 for this effect is 5.00-30.0 pg/mL. |
Source |
Chinese Hamster Ovary cell line, CHO-derived human IFN-beta protein Met22-Asn187 |
Accession # |
|
N-terminal Sequence |
Met22 & Ser23 |
Protein/Peptide Type |
Recombinant Proteins |
Gene |
IFNB1 |
Purity |
>95%, by SDS-PAGE with silver staining. |
Endotoxin Note |
<0.10 EU per 1 μg of the protein by the LAL method. |
Applications/Dilutions
Dilutions |
|
Theoretical MW |
20 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 |
20-26 kDa, reducing conditions |
Publications |
Read Publications using 8499-IF/CF in the following applications:
|
|
Packaging, Storage & Formulations
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.
|
Buffer |
Lyophilized from a 0.2 μm filtered solution in Citric Acid and CHAPS. |
Purity |
>95%, by SDS-PAGE with silver staining. |
Reconstitution Instructions |
Reconstitute at 200 μg/mL in sterile water. |
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Human IFN-beta Protein, CF
Background
Interferon beta (IFN-beta ), also known as fibroblast IFN, is a secreted, approximately 22 kDa member of the type I interferon family of molecules (1). Mature human IFN-beta shares 47% and 46% amino acid sequence identity with the mouse and rat proteins, respectively. Fibroblasts are the major producers of IFN-beta , but it can also be produced by dendritic cells, macrophages, and endothelial cells in response to pathogen exposure (2). It is transcriptionally regulated by TRAF3, IRF3, IRF7, and NF-kappa B (3, 4). Following secretion, IFN-beta signals through the heterodimeric IFN-alpha / beta Receptor and activates the JAK/STAT signaling pathway (5-8). IFN-beta -deficient mice show increased susceptibility to experimental autoimmune encephalomyelitis (EAE), a disease model of human multiple sclerosis (MS) (9). Furthermore, IFN-beta has been shown to suppress the Th17 cell response in both MS and EAE and has commonly been used as a treatment for MS (10-14).
- González-Navajas, J.M. et al. (2012) Nat. Rev. Immunol. 12:125.
- Reder, A.T. and X. Feng (2013) Front. Immunol. 4:281.
- Schafer, S.L. et al. (1998) J. Biol. Chem. 273:2714.
- Häcker, H. et al. (2006) Nature 439:204.
- Honda, K. et al. (2006) Nat. Rev. Immunol. 6:644.
- Platanias, L.C. (2005) Nat. Rev. Immunol. 5:375.
- Fasler-Kan, E. et al. (1998) Eur. J. Biochem. 254:514.
- Matikainen, S. et al. (1999) Blood 93:1980.
- Teige, I. et al. (2003) J. Immunol. 170:4776.
- Shinohara, M.L. et al. (2008) Immunity 29:68.
- Guo, B. et al. (2008) J. Clin. Invest. 118:1680.
- Ramgolam, V.S. and S. Markovic-Plese (2010) Endocr. Metab. Immune Disord. Drug Targets 10:161.
- Martín-Saavedra, F.M. et al. (2008) Mol. Immunol. 45:4008.
- Inoue, M. and M.L. Shinohara (2013) Immunology 139:11.
Customers Who Viewed This Item Also Viewed...
Species: Hu, Mu, Rt
Applications: Flow, ICC/IF, IHC, IHC-P, WB
Species: Hu
Applications: BA
Species: Hu
Applications: BA
Species: Mu
Applications: ELISA
Species: Ca, Hu, Mu
Applications: BA, B/N, Flow-IC, Flow, ICC/IF, IHC, IHC-P, WB
Species: Bv, Hu, Ma, Mu, Po, Rt
Applications: B/N, ChIP, CyTOF-ready, DB, Dual ISH-IHC, ELISA(Cap), ELISA, Flow-CS, Flow-IC, Flow, ICC/IF, IHC, IHC-Fr, IHC-P, In vitro, KD, KO, PAGE, WB
Species: Mu
Applications: ELISA
Species: Hu
Applications: BA
Species: Hu, Rb, Rt
Applications: Flow, IHC, IHC-P, KO, WB
Species: Mu, Po, Rt
Applications: IB, ICC/IF, IHC, IHC-P, IP, KD, Simple Western, WB
Species: Hu, Mu, Rt
Applications: Flow, ICC/IF, IHC, IHC-P, WB
Species: Hu, Mu
Applications: CyTOF-ready, ICFlow, Simple Western, WB
Species: Mu
Applications: WB
Species: Hu
Applications: BA
Species: Hu
Applications: BA
Species: Hu
Applications: WB
Species: Bv, Hu, Mu, Rt, Xp, Ye, Ze
Applications: BindInhib, B/N, ELISA, Flow, Func-Inh, IHC, In vitro, In vivo
Species: Ca, Hu, Mu, Rb, Rt
Applications: B/N, DB, ELISA, Flow-CS, Flow, Func, ICC/IF, IP, In vitro, WB
Species: Hu, Mu, Rt
Applications: ELISA, ICC/IF, IHC, IHC-P, WB
Species: Hu
Applications: Bioactivity
FAQs for IFN-beta (8499-IF/CF) (0)