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IL-28B Protein, Human, Recombinant (His)
(Synonyms: interferon, λ3, interferon, lambda 3, IL28C, IL-28B, IL28B) Copy Product InfoSynonyms: interferon, λ3, interferon, lambda 3, IL28C, IL-28B, IL28B
Catalog No. TMPY-01872 Copy Product Info
IL-28B Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 21 kDa and the accession number is A0A7R8C2Z6.
| Pack Size | Price | USA Stock | Global Stock | Quantity |
|---|---|---|---|---|
| 5 μg | $50 | 7-10 days | 7-10 days | |
| 10 μg | $79 | 7-10 days | 7-10 days | |
| 20 μg | $127 | 7-10 days | 7-10 days | |
| 50 μg | $245 | - | In Stock | |
| 100 μg | $413 | 7-10 days | 7-10 days | |
| 200 μg | $693 | 7-10 days | 7-10 days | |
| 500 μg | $1,370 | 7-10 days | 7-10 days |
For In stock only · Estimated delivery: USA Stock (1-2 days) Global Stock (5-7 days)
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For research use only—not for human use. No sales to individuals. Use as intended only.
Batch Information
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Purity:93.1%
Appearance:Lyophilized powder
Color:White
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Product Introduction
Bioactivity
Chemical Properties
Storage & Solubility Information
| Bioactivity | Measured in antiviral assays using WISH cells infected with vesicular stomatitis virus. The ED50 for this effect is typically 4-16 ng/mL.  |
| Description | IL-28B Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 21 kDa and the accession number is A0A7R8C2Z6. |
| Species | Human |
| Expression System | HEK293 Cells |
| Tag | C-His |
| Accession Number | Q8IZI9 |
| Construction | A DNA sequence encoding the human IL28B (NP_742151.2) (Met 1-Val 196) was expressed, with a polyhistidine tag at the C-terminus. Predicted N terminal: Val 22 |
| Protein Purity | > 96 % as determined by SDS-PAGE  |
| Endotoxin | < 1.0 EU/μg of the protein as determined by the LAL method. |
| Formulation | Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, 500 mM NaCl, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization. |
| Reconstitution | Reconstituted with sterile deionized water to 0.25 mg/mL. Reconstitution conditions may vary depending on the lot. |
| 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. |
| Shipping | In general, lyophilized powders are shipped with blue ice, while solutions are shipped with dry ice. |
| Synonyms | interferon, λ3, interferon, lambda 3, IL28C, IL-28B, IL28B |
| Research Background |
| Molecular Weight | 21 kDa (predicted); 23 kDa (reducing conditions) |
| Storage | Lyophilized powder: -20~-80°C for 1 year | Solution: -80°C for 6 months |
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Tech Support
Please see Inhibitor Handling Instructions for more frequently ask questions. Topics include: how to prepare stock solutions, how to store products, and cautions on cell-based assays & animal experiments, etc
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Related Tags: IL-28B Protein, Human, Recombinant (His) chemical structure | IL-28B Protein, Human, Recombinant (His) molecular weight
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