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| Product Name | Recombinant Human Interleukin-4 (IL-4), Active |
| Catalog No. | PTR-HMM-0124 |
| Description | An active recombinant human IL4 protein representing full length of mature protein, produced using Yeast and purified for functional protein research. |
| Intended Use | For protein interaction studies, antibody evaluation, assay development, functional characterization and related life-science research. |
| Principle / Technology | Recombinant expression using Yeast, followed by purification and functional qualification. |
| Detection Method | TF-1 cell proliferation assay |
| Sample Type | Purified recombinant protein |
| Performance Range / Specifications | Package options: 20 ug; 100 ug; 1 mg. Purity: >=95% by SDS-PAGE. Functional performance: TF-1 cell proliferation is stimulated with an ED50 of 1.959-6.912 ng/mL. |
| Sensitivity / LOD | ED50: 1.959-6.912 ng/mL |
| Specificity | Human IL4 |
| Reaction Conditions / Protocol | TF-1 cell proliferation is stimulated with an ED50 of 1.959-6.912 ng/mL. |
| Components / Formulation | PBS containing 6% trehalose, pH 7.4 |
| Storage Conditions | Store at -20 C or -80 C. Prepare working aliquots for repeated use and avoid repeated freeze-thaw cycles. |
| Shelf Life | Liquid: 6 months at -20 C or -80 C. Lyophilized: 12 months at -20 C or -80 C. |
| Package Specifications | 20 ug; 100 ug; 1 mg |
| Product Form | Lyophilized powder |
| Quality Control | Purity is assessed by the method stated in the specification. Functional performance is qualified by tf-1 cell proliferation assay. |
| Key Features | Active recombinant human IL4; Full length of mature protein; Yeast; >=95% by SDS-PAGE purity; documented functional performance; endotoxin <1.0 EU/ug by LAL assay. |
| Purity | >=95% by SDS-PAGE |
| Activity / Unit Definition | TF-1 cell proliferation is stimulated with an ED50 of 1.959-6.912 ng/mL. |
| Molecular Weight | 17.0 kDa |
| Source / Origin | Human; recombinant production using Yeast. |
| pH Range / Optimal pH | 7.4 |
| Expiration Date / Stability | Liquid material is stable for 6 months at -20 C or -80 C; lyophilized material is stable for 12 months at -20 C or -80 C. |
| Regulatory / Compliance | For research use only; not for clinical diagnosis or treatment. |
| Compatibility | TF-1 proliferation assay; cytokine signaling research; cell culture studies |
| Recommended Buffer System | PBS containing 6% trehalose, pH 7.4 |
| Application Notes / Precautions | Briefly centrifuge lyophilized material before opening. Reconstitute with sterile deionized water to 0.1-1.0 mg/mL. For extended storage after reconstitution, add glycerol to a final concentration of 5%-50%, prepare working aliquots and avoid repeated freeze-thaw cycles. Working aliquots may be kept at 4 C for up to one week. |
| Alternative Names / Synonyms | Interleukin-4; IL-4; B-cell stimulatory factor 1; BSF-1; Binetrakin; Lymphocyte stimulatory factor 1; Pitrakinra |
| Lead Time | 3-7 working days |
| Availability Status | In Stock |
| Host Species | Human |
| Tag Information | N-terminal 6xHis-tagged |
| Amino Acid Sequence | HKCDITLQEIIKTLNSLTEQKTLCTELTVTDIFAASKNTTEKETFCRAATVLRQFYSHHEKDTRCLGATAQQFHRHKQLIRFLKRLDRNLWGLAGLNSCPVKEANQSTLENFLERLKTIMREKYSKCSS |
| UniProt Accession | P05112 |
| Protein Length | 129 aa |
| Expression Region | 25-153 aa |
| Endotoxin Level | <1.0 EU/ug by LAL assay |
For research use only, not for clinical use.
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