Mouse IL25/mIL17E Recombinant Protein (HEK293 Expression) — Tag Free
Price range: $198.00 through $3,200.00
HEK293 × Chaperone-Assisted Technology
Produced using our proprietary Z-Active® platform — HEK293 mammalian expression with chaperone-assisted folding for proper disulfide bonding, N-linked glycosylation, and 5–10× higher bioactivity vs Leading Suppliers.
Overview
The Interleukin‑17 (IL‑17) family of proteins are immunoregulatory cytokines that share a conserved cysteine‑rich region. IL‑17E, which is also known as IL‑25, promotes Th2‑biased immune responses. This is in contrast to other IL‑17 family members which promote Th1‑ and Th17‑biased inflammation. IL‑25 is an important mediator of allergic reactions and protection against intestinal parasites (1, 2). Mature mouse IL‑25 shares 80% and 91% amino acid sequence identity with human and rat IL‑25, respectively (3, 4). During helminth infections and allergic reactions, IL‑25 is locally upregulated in intestinal and airway epithelial cells, atopic dermatitis skin lesions, and local Th2 cells, eosinophils, and basophils (4‑9). It binds to IL‑17 RB but also requires IL‑17 RA to exert its activity (3, 8, 10). IL‑25 acts on a variety of cell types which respond with increased production of Th2 cytokines (e.g. IL‑4, IL‑5, IL‑13) and reduced production of Th1 and Th17 cytokines (e.g. IFN‑ gamma, IL‑12, IL‑23, IL‑17A, IL‑17F) (4‑6, 8, 9, 11‑15). Airway IL‑25 can be activated by MMP‑7, a protease that is up‑regulated in airway epithelium in response to allergen exposure (16). Cleaved IL‑25 shows enhanced binding to IL‑17 RB and stronger induction of Th2 cytokines (16). The Th2 cytokines, in turn, trigger expansion of Th2 memory cells and anti‑inflammatory M2 macrophages, increased eosinophil mobilization and activation, and dendritic cell migration (4, 6, 9, 13). These actions promote protective anti‑helminth immune responses (4, 5) as well as allergic inflammation and airway hyperreactivity (11). The IL‑25 induced suppression of Th1 and Th17 cytokines limits Th17 cell expansion and disease pathology in autoimmunity and colitis (12, 15). IL‑25 also promotes vascular endothelial cell proliferation and assembly into tubular structures (7). It supports the integrity of the blood‑brain barrier and limits CD4+ T cell infiltration into the brain (17).
Specifications
- Species: mouse
- Expression System: HEK293
- Sequence: Val17-Ala169
- Tag: Tag Free
- Molecular Weight: 17.5 KDa
- Purity: > 95% by Tris-Bis PAGE;> 95% by SEC-HPLC
- Endotoxin: < 1 EU/μg of the protein by LAL method.
- UniProt/Swiss-Prot: Q8VHC9
- Available Sizes: 10 µg, 50 µg, 1 mg
Bioactivity
Measured by its ability to induce CXCL1/GRO alpha secretion in HT‑29 human colon adenocarcinoma cells. The EC50 for this effect is 0.2-1.0 ng/mL.
Formulation & Reconstitution
Formulation: 0.22 μm filtered solution of PBS, pH 7.4.
Reconstitution: 0.2 mg/mL in sterile PBS, pH7.4
Storage & Stability
Aliquot and store at -80°C. Avoid repeated freeze/thaw cycles.
Quality Assurance
Each lot is tested for purity (SDS-PAGE, SEC-HPLC), endotoxin levels (LAL method), and bioactivity. A Certificate of Analysis (COA) is provided with every order.
Safety Data Sheets & Documentation
Protocols & Support
Reconstitution Protocol
1. Briefly centrifuge the vial to collect lyophilized powder at the bottom.
2. Reconstitute in sterile deionized water or PBS to a concentration of 0.2–1.0 mg/mL.
3. Gently pipette up and down to dissolve. Do not vortex.
4. Aliquot and store at -20°C to -80°C. Avoid repeated freeze-thaw cycles.
Download Data Sheet
Complete product data sheet including batch-specific QC data, sequence information, and storage guidelines.
Download PDF Data Sheet
