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Catalogue Number
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CYT-543
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Synonyms
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Leukocyte interferon, B cell interferon, Type I interferon, IFNA2, IFN-? 2a.
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Introduction
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IFN-alpha is produced by macrophages and has antiviral activities. Interferon stimulates the production of two enzymes: protein kinase and an oligoadenylate synthetase.
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Description
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Interferon Alpha Human 2a Recombinant produced in Plant is a single, glycosylated, polypeptide chain containing 165 amino acids and having a molecular mass of 19 kDa. The Interferon-a 2a contains affinity 6xHis tag on C-terminus. The IFN-A 2a is purified by proprietary chromatographic techniques.
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Source
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Nicotiana Sp.Plant.
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Physical Appearance
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Sterile Filtered White lyophilized (freeze-dried) powder.
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Formulation
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Lyophilized, containing 50% SDS.
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Solubility
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It is recommended to reconstitute the lyophilized Interferon-alpha 2a in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
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Stability
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Lyophilized Interferon alpha 2a although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IFN-alpha 2a should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
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Amino acid sequence
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The sequence of the first twelve N-terminal amino acids was determined and was found to be Cys-Asp-Leu-Pro-Gln-Thr-His-Ser-Leu-Gly-Ser-Arg.
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Purity
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Greater than 99.0% as determined by both(a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.
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Biological Activity
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The specific activity was determined by a quantitative gene report bioassay using human Type I interferon-sensitive cells. Compared with bacterial derived recombinant IFN-a 2a, assayed in the same conditions, plant derived IFN-alpha 2a showed 6.1 × 108 Units/mg in reference to a viral resistance assay using bovine kidney MDBK cells.
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Usage
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ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Related Products
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