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Synonyms: Pitrakinra, Lymphocyte Stimulatory Factor 1, Interleukin-4, IL-4, IL4, BSF-1, Binetrakin, B-Cell Stimulatory Factor 1

| Pack Size | Price | USA Stock | Global Stock | Quantity |
|---|---|---|---|---|
| 5 μg | $80 | 7-10 days | 7-10 days | |
| 10 μg | $129 | 7-10 days | 7-10 days | |
| 20 μg | $198 | 7-10 days | 7-10 days | |
| 50 μg | $390 | 7-10 days | 7-10 days | |
| 100 μg | $626 | 7-10 days | 7-10 days | |
| 200 μg | $987 | 7-10 days | 7-10 days | |
| 500 μg | $1,900 | 7-10 days | 7-10 days | |
| 1 mg | $2,730 | 7-10 days | 7-10 days |
| Bioactivity | 1. Loaded Cynomolgus IL-4RA-His on HIS1K Biosensor, can bind Human IL-4-Fc with an affinity constant of <10-3 nM as determined in BLI assay. (Regularly tested).
2. Immobilized Human IL-4-Fc at 5μg/ml (100 μl/well) can bind Cynomolgus IL-4Ra-His . The ED50 of Recombinant Human IL-4Ra-His is 79.49 ng/ml. (Regularly tested); |
| Description | IL-4 Protein, Human, Recombinant (hFc) is expressed in HEK293 mammalian cells with C-Fc tag. The predicted molecular weight is 40-55 KDa and the accession number is P05112. |
| Species | Human |
| Expression System | HEK293 Cells |
| Tag | C-hFc |
| Accession Number | P05112 |
| Amino Acid | His25-Ser153 |
| Construction | His25-Ser153 |
| Protein Purity | Greater than 95% as determined by reducing SDS-PAGE. Greater than 95% as determined by SEC-HPLC. |
| Endotoxin | < 0.1 ng/µg (1 EU/µg) as determined by LAL test. |
| Formulation | Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. |
| Reconstitution | Reconstitute the lyophilized protein in distilled water. The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing. |
| Stability & Storage | 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 | Pitrakinra, Lymphocyte Stimulatory Factor 1, Interleukin-4, IL-4, IL4, BSF-1, Binetrakin, B-Cell Stimulatory Factor 1 |
| Research Background |
| Molecular Weight | 40-55 KDa (reducing condition) |
| Storage | Store at low temperature Lyophilized powder: -20~-80°C for 1 year | Solution: -80°C for 6 months |
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