GRADE & PURITYCarrier 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.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.≥95%(SDS-PAGE)See COA
Accession #
P05231
Protein Tag
No tag
Expression system
E. coli
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 0.17 ng/mL.
Carrier Free,Bioactive,ActiBioPure™,High Performance,PBS Only,≥95%(SDS-PAGE),See COA ActiBioPure™,Bioactive,Carrier Free,High Performance,PBS Only for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Storage & shipping
Store at -20°C,Avoid repeated freezing and thawing Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.
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Quality documents
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
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Literature proof
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
ActiBioPure™, Bioactive, Carrier Free, High Performance, PBS Only
Specifications & Purity
Carrier Free, Bioactive, ActiBioPure™, High Performance, PBS Only, ≥95%(SDS-PAGE), See COA
Biochemical and Physiological Mechanisms
Interleukin-6 (IL-6) is a pleiotropic, alpha-helical, 22-28 kDa phosphorylated and variably glycosylated cytokine that plays important roles in the acute phase reaction, inflammation, hematopoiesis, bone metabolism, and cancer progression. Mature human IL
Bioactivity
Measured in a cell proliferation assay using TF‑1 human erythroleukemic cells. The ED50 for this effect is 0.17 ng/mL.
23.5 kDa, under reducing conditions; 22.7 & 50.0 kDa, under non-reducing conditions.
Molecule Type
Protein
Storage and Shipping
Concentration
See COA
Reconstitution
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
Shipped In
Ice chest + Ice pads
Stability And Storage
Store at -20℃ for 12 months. Upon reconstitution, it is recommended to aliquot. Avoid freeze/thaw cycle.
Images
Recombinant Human IL-6 Protein (rp302374) - Protein Bioactivity
Measured in a cell proliferation assay using TF‑1 human erythroleukemic cells. The ED₅₀ for this effect is 0.17 ng/mL.
Recombinant Human IL-6 Protein (rp302374) - SDS-PAGE
3 μg/lane of Recombinant Human IL-6 Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing a band at 23.5 kDa under reducing conditions and 22.7 & 50.0 kDa under non-reducing conditions.
There are multiple pairs of disulfide bonds in the protein sequence. Disulfide bonds cause the protein to present as a polymer in a non-reducing conditions (Uniprot ID: P05231).
Documentation
📋 Safety Data Sheet (SDS)
Comprehensive hazard, handling, storage, and regulatory compliance document.
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