Abbreviation
Recombinant Human IL13 protein (Active)
Purity
>97% as determined by SDS-PAGE.
Endotoxin
Less than 1.0 EU/μg as determined by LAL method.
Activity
Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human TF-1 cells is less than 1 ng/ml, corresponding to a specific activity of >1.0x106 IU/mg.
Alternative Names
Allergic rhinitis; ALRH; BHR 1; BHR1; Bronchial hyperresponsiveness 1 (bronchial asthma); IL 13; IL-13; Il13; IL13_HUMAN; Interleukin 13; Interleukin-13; interleukin13; MGC116786; MGC116788; MGC116789; NC 30; NC30; P 600; P600
Species
Homo sapiens (Human)
Expression Region
35-146aa
Target Protein Sequence
GPVPPSTALR ELIEELVNIT QNQKAPLCNG SMVWSINLTA GMYCAALESL INVSGCSAIE KTQRMLSGFC PHKVSAGQFS SLHVRDTKIE VAQFVKDLLL HLKKLFREGR FN
Note: The complete
sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is
translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant protein is critical to your application,
please explicitly request the full and complete sequence of this protein before ordering.
Tag Info
Tag-Free
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Buffer
0.2 μm filtered PBS, pH 7.4 ,lyophilized
Lead Time
5-10 business days
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Datasheet & COA
Please contact us to get it.
Description
IL-13 drives Th2-polarized immune responses and plays a central role in allergic inflammation, fibrosis, and alternative macrophage activation, making precise recombinant forms essential for dissecting STAT6 and JAK1 signaling pathways. This tag-free recombinant human IL-13, encompassing the full mature sequence (residues 35–146), demonstrates an ED50 below 1 ng/mL in TF-1 cell proliferation assays—corresponding to a specific activity exceeding 1.0 × 10⁶ IU/mg—which provides a suitable basis for dose-response studies, Th2 differentiation assays, and use as a reference standard in cytokine detection platforms. Endotoxin levels below 1.0 EU/μg minimize LPS-driven artifacts, supporting reliable results in primary immune cell activation experiments and in vivo models of airway inflammation or fibrosis. The preparation meets the quality thresholds commonly required for antibody development workflows, including use as a coating antigen in ELISA or as a positive control in western blot validation, with purity exceeding 97% by SDS-PAGE.