GRADE & PURITYAnimal Free?Animal-free — produced without animal-derived components to reduce contamination risk. Use in biomanufacturing and culture avoiding animal-origin material.Carrier Free?Carrier-free — supplied without added carrier protein/stabilizer. Use when carriers (e.g. BSA) would interfere with conjugation or sensitive assays.Bioactive?Bioactive grade — verified to retain biological activity in functional assays. Use when the molecule must be functionally active, not just pure.ActiBioPure™?ActiBioPure™ — Aladdin's premier line for bioactive and recombinant products. Use when both high purity and preserved biological activity are required.High Performance?High-performance grade with optimized purity and performance characteristics. Use for sensitive analyses where ordinary grades fall short.His Tag?His tag grade — recombinant protein bearing a His tag for affinity purification/detection. Use to purify, immobilize, or detect the tagged protein.PBS Only?PBS-only formulation — supplied in phosphate-buffered saline with no other additives. Use when you need a clean PBS buffer free of stabilizers/carriers.≥90%(SDS-PAGE)See COA
Accession #
P05112
Protein Tag
C-His
Expression system
HEK293
Endotoxin Concentration
<1.0 EU/μg
Bioactivity
Measured in a cell proliferation assay using TF‑1 human erythroleukemic cells. The ED50 for this effect is 0.58 ng/mL.
ActiBioPure™, Animal Free, Bioactive, Carrier Free, High Performance, His Tag, PBS Only
Spezifikationen & Reinheit
Animal Free,Carrier Free,Bioactive,ActiBioPure™,High Performance,His Tag,PBS Only,≥90%(SDS-PAGE),See COA
Biochemische und physiologische Mechanismen
Interleukin-4 (IL-4), also known as B cell-stimulatory factor-1, is a monomeric, approximately 13 kDa‑18 kDa Th2 cytokine that shows pleiotropic effects during immune responses. It is a glycosylated polypeptide that contains three intrachain disulfide bri
Bioaktivität
Measured in a cell proliferation assay using TF‑1 human erythroleukemic cells. The ED50 for this effect is 0.58 ng/mL.
17.5-20.8 kDa, under reducing conditions; 17.3-20.1 kDa, under non-reducing conditions.
Molekültyp
Protein
Lagerung und Versand
Konzentration
See COA
Rekonstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute at 0.5 mg/mL in sterile distilled water. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
Storage
Store at -20°C,Avoid repeated freezing and thawing
Verschickt in
Ice chest + Ice pads
Stabilität und Lagerung
Store at -20℃ for 12 months. Upon reconstitution, it is recommended to aliquot. Avoid freeze/thaw cycle.
Bilder
Recombinant Human IL-4 Protein (rp186552) - Bioactivity Measured in a cell proliferation assay using TF‑1 human erythroleukemic cells. The ED50 for this effect is 0.58 ng/mL.
Recombinant Human IL-4 Protein (rp186552) - SDS-PAGE 3 μg/lane of Recombinant Human IL-4 Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing a band at 17.5-20.8 kDa under reducing conditions and 17.3-20.1 kDa under non-reducing conditions.
Documentation
📋 Safety Data Sheet (SDS)
Comprehensive hazard, handling, storage, and regulatory compliance document.
Determine the necessary mass, volume, or concentration for preparing a solution.
Dilution Calculator
Determine the dilution needed to prepare a stock solution.
Reconstitution Calculator
Bewertungen
Kundenbewertungen
Häufig gestellte Fragen
What is the purity of this product, and how is it determined?
This product is supplied at ≥90% purity, determined by SDS-PAGE. Lot-specific values are stated on the Certificate of Analysis.
What does Animal Free mean?
Animal Free indicates that the material has been processed and tested for specialty industrial processing. Specifications focus on the impurities that affect performance in that application — for example, metal content for electronics, particle size for batteries, refractive index for optics, or moisture content for moisture-sensitive processes.
What does Carrier Free mean?
Carrier Free indicates that the material has been processed and tested for specialty industrial processing. Specifications focus on the impurities that affect performance in that application — for example, metal content for electronics, particle size for batteries, refractive index for optics, or moisture content for moisture-sensitive processes.
How should this product be stored?
Store at ?20 °C. Avoid repeated freeze–thaw cycles. Aliquot into single-use volumes before freezing.
How is this product shipped?
This product ships in an insulated container with ice pads. Unpack on arrival and transfer it to the storage condition stated above.
What documentation is provided?
Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.
Need help choosing the grade?
Our grade selection guide covers purity, stabilizer status, and application suitability for all variants in our catalog.
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