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Human Interferon beta / IFN-beta / IFNB Protein

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IFNB1Protein Product Information
Synonym:IFNβ, IFNB1, IFB, IFNB
Protein Construction:A DNA sequence encoding the human IFNβ (P01574) (Met1-Asn187) was expressed.
Species:Human
Expressed Host:CHO Stable Cells
Form & Shipping:In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
IFNB1Protein QC Testing
Purity:> 95 % as determined by SDS-PAGE
Bio-Activity:Measured in antiviral assays using WISH human amnion cells infected with vesicular stomatitisvirus (VSV).
The EC50 for this effect is 1-5 pg/mL.
Endotoxin:< 1.0 EU per μg of the protein as determined by the LAL method
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Met 22
Molecule Mass:The recombinant human IFNβ consists of 166 amino acids and predicts a molecular mass of 20 KDa. It migrates as an approximately 20-23 KDa band in SDS-PAGE under reducing conditions.
Formulation:Lyophilized from sterile 50mM Hepes, pH 7.0
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
IFNB1Protein Usage Guide
Storage:Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
10704-HNAS
Background

Interferons (IFNs) are natural glycoproteins belonging to the cytokine superfamily, and are produced by the cells of the immune system of most vertebrates in response to challenges by foreign agents such as viruses, parasites and tumor cells. Interferon-beta (IFN beta) is an extra-cellular protein mediator of host defense and homeostasis. IFN beta has well-established direct antiviral, antiproliferative and immunomodulatory properties. Recombinant IFN beta is approved for the treatment of relapsing-remitting multiple sclerosis. The recombinant IFN beta protein has the theoretical potential to either treat or cause autoimmune neuromuscular disorders by altering the complicated and delicate balances within the immune system networks. It is the most widely prescribed disease-modifying therapy for multiple sclerosis (MS). Large-scale clinical trials have established the clinical efficacy of IFN beta in reducing relapses and slowing disease progression in relapsing-remitting MS. IFN beta therapy was shown to be comparably beneficial for opticospinal MS (OSMS) and conventional MS in Japanese. IFN beta is effective in reducing relapses in secondary progressive MS and may have a modest effect in slowing disability progression. In addition to the common antiviral activity, IFN beta also induces increased production of the p53 gene product which promotes apoptosis, and thus has therapeutic effect against certain cancers. The role of IFN-beta in bone metabolism could warrant its systematic evaluation as a potential adjunct to therapeutic regimens of osteolytic diseases. Furthermore, IFN beta might play a beneficial role in the development of a chronic progressive CNS inflammation.

References
  • Kohriyama T, et al. (2008) Interferon-beta treatment for multiple sclerosis and predictors of response. Nippon Rinsho. 66(6): 1119-26.
  • Stbgen JP. (2009) Recombinant interferon-beta therapy and neuromuscular disorders. J Neuroimmunol. 212(1-2): 132-41.
  • Abraham AK, et al. (2009) Mechanisms of interferon-beta effects on bone homeostasis. Biochem Pharmacol. 77(12): 1757-62.
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    Catalog:10704-HNAS-5
    List Price: $58.00  (Save $20.00)
    Price:$38.00      [How to order]
    AvailabilityIn Stock
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    • Human Interferon beta / IFN-beta / IFNB Protein SDS-PAGE
    Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"