Recombinant Human IL-5 Protein

Cat. No.: rp181291
AVAILABLE TO ORDER
GRADE & PURITY Animal 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. ≥95%(SDS-PAGE) expressed in HEK293; See COA
Accession #
P05113
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 0.22ng/mL.
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
10μg
rp181291-10μg
1-2 wks(?)
Item is derived from our semi-finished stock and is processed in 1-2 weeks.
$139.90
50μg
rp181291-50μg
1-2 wks(?)
Item is derived from our semi-finished stock and is processed in 1-2 weeks.
$399.90
100μg
rp181291-100μg
1-2 wks(?)
Item is derived from our semi-finished stock and is processed in 1-2 weeks.
$629.90
1mg
rp181291-1mg
1-2 wks(?)
Item is derived from our semi-finished stock and is processed in 1-2 weeks.
$3,669.90
Enter a quantity for the sizes you want to add.
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Why this grade

Animal Free,Carrier Free,Bioactive,ActiBioPure™,High Performance,His Tag,≥95%(SDS-PAGE),expressed in HEK293; See COA ActiBioPure™,Animal Free,Bioactive,Carrier Free,High Performance,His Tag 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.

Specifications

Product Name
Recombinant Human IL-5 Protein
Synonyms
Interleukin 5 | BCDF mu | BCGFII | EDF | Eo-CSF | IL5 | TRF | Interleukin-5 | IL-5 | B-cell differentiation factor I | Eosinophil differentiation factor | T-cell replacing factor | BCDFII | B cell differentiation factor I
Grade
ActiBioPure™, Animal Free, Bioactive, Carrier Free, High Performance, His Tag
Specifications & Purity
Animal Free, Carrier Free, Bioactive, ActiBioPure™, High Performance, His Tag, ≥95%(SDS-PAGE), expressed in HEK293; See COA
Biochemical and Physiological Mechanisms
Homodimeric cytokine expressed predominantly by T-lymphocytes and NK cells that plays an important role in the survival, differentiation, and chemotaxis of eosinophils (PubMed:2653458, PubMed:9010276). Also acts on activated and resting B-cells to induce
Bioactivity
Measured in a cell proliferation assay using TF-1 human erythroleukemic cells. The ED50 for this effect is 0.22ng/mL.
Endotoxin Concentration
<1.0 EU/μg
Amino Acids
1-134 aa
Sequence
MRMLLHLSLLALGAAYVYAIPTEIPTSALVKETLALLSTHRTLLIANETLRIPVPVHKNHQLCTEEIFQGIGTLESQTVQGGTVERLFKNLSLIKKYIDGQKKKCGEERRRVNQFLDYLQEFLGVMNTEWIIESHHHHHH
Accession #
Predicted molecular weight
13.5 kDa
SDS-PAGE
16.2-21.3 kDa; under reducing conditions; 30.0-40.5 kDa; under non-reducing conditions.
Molecule Type
Protein
Storage and Shipping
Concentration
expressed in HEK293; 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-5 Protein (rp181291) - Protein Bioactivity 
Measured in a cell proliferation assay using TF-1 human erythroleukemic cells. The ED50 for this effect is 0.22 ng/mL.
Recombinant Human IL-5 Protein (rp181291) - SDS-PAGE 
3 μg/lane of Recombinant Human IL-5 Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing a band at 16.2-21.3 kDa under reducing conditions and 30.0-40.5 kDa under non-reducing conditions.

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

3 results found

Lot NumberCertificate TypeDateItem
ZJ26F0435024Certificate of AnalysisMay 08, 2026 rp181291
ZJ26F0435023Certificate of AnalysisMay 08, 2026 rp181291
ZJ26F0435022Certificate of AnalysisMay 08, 2026 rp181291
Documents & Articles
Solution Calculators
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