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Interferon alpha 4/IFNA4 Protein, Human, Recombinant (His)

Catalog No. TMPY-02566

Interferon alpha 4/IFNA4 Protein, Human, Recombinant (His) is expressed in Baculovirus insect cells with His tag. The predicted molecular weight is 20.7 kDa and the accession number is P05014.

Interferon alpha 4/IFNA4 Protein, Human, Recombinant (His)

Interferon alpha 4/IFNA4 Protein, Human, Recombinant (His)

Catalog No. TMPY-02566
Interferon alpha 4/IFNA4 Protein, Human, Recombinant (His) is expressed in Baculovirus insect cells with His tag. The predicted molecular weight is 20.7 kDa and the accession number is P05014.
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100 μg$297In Stock
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Product Information

Biological Activity
Measured in antiviral assays using WISH human amnion cells infected with vesicular stomatitis virus(VSV). The ED50 for this effect is typically 2-8 pg/mL.
Interferon alpha 4/IFNA4 Protein, Human, Recombinant (His)
Description
Interferon alpha 4/IFNA4 Protein, Human, Recombinant (His) is expressed in Baculovirus insect cells with His tag. The predicted molecular weight is 20.7 kDa and the accession number is P05014.
Species
Human
Expression System
Baculovirus Insect Cells
TagC-His
Accession NumberP05014
Synonyms
MGC142200,interferon, α4,interferon, alpha 4,INFA4,IFN-α4a,IFN-alpha4a
Construction
A DNA sequence encoding the human IFNα 4a (NP_066546.1)) (Met 1-Asp 189) was fused with a polyhistidine tag at the C-terminus. Predicted N terminal: Cys 24
Protein Purity
> 88 % as determined by SDS-PAGE
Interferon alpha 4/IFNA4 Protein, Human, Recombinant (His)
Molecular Weight20.7 kDa (predicted); 20 kDa (reducing conditions)
Endotoxin< 1.0 EU/μg of the protein as determined by the LAL method.
FormulationLyophilized from a solution filtered through a 0.22 μm filter, containing 20 mM Tris, 500 mM NaCl, pH 7.4, 10% gly. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
Reconstitution
A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
Stability & Storage
It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
ShippingIn general, Lyophilized powders are shipping with blue ice.
Research Background
Interferon, alpha 4 (IFNA4) belongs to the alpha/beta interferon family. Two variants of IFNA4 (IFNA4a and IFNA4b) are known, which differ from each other by changes in their coding regions at nucleotide positions 220 and 410 and can be distinguished by selective restriction enzyme analysis. Interferons are produced by macrophages, IFN-alpha has antiviral activities. Interferon stimulates the production of two enzymes: a protein kinase and an oligoadenylate synthetase. IFN-alpha, the first cytokine to be produced by recombinant DNA technology, has emerged as an important regulator of growth and differentiation, affecting cellular communication and signal transduction pathways as well as immunological control. Originally discovered as an antiviral substance, the efficacy of IFN-alpha in malignant, viral, immunological, angiogenic, inflammatory, and fibrotic diseases suggests a spectrum of interrelated pathophysiologies. IFN-alpha emerged as a prototypic tumor suppressor protein that represses the clinical tumorigenic phenotype in some malignancies capable of differentiation.

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