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Recombinant Human IL-17A / CTLA-8 Protein, premium grade, 25 µg  

Recombinant Human IL-17A / CTLA-8 Protein, premium grade, 25 µg

Recombinant Human IL-17A / CTLA-8 Protein, AA Gly 24 - Ala 155, expressed from human HEK293 cells, premium grade

Synonym
recombinant, human, protein, IL-17A, Interleukin-17A, CTLA-8, IL-17

More details

ILA-H5219-25

Availability: within 7 days

169,00 €

Background
Interleukin-17A (IL-17A), also known as CTLA-8, is a 15-20 kDa glycosylated cytokine that plays an important role in anti-microbial and chronic inflammation. The six IL-17 cytokines (IL-17A-F) are encoded by separate genes but adopt a conserved cystine knot fold (1, 2). Mature cynomolgus monkey IL-17A shares 96% amino acid sequence identity with human IL-17A (3, 4). IL-17A is secreted by Th17 cells, gamma /δ T cells, iNKT cells, NK cells, LTi cells, neutrophils, and intestinal Paneth cells (2). It forms disulfide-linked homodimers as well as disulfide-linked heterodimers with IL-17F (5, 6). IL-17A exerts its effects through the transmembrane IL-17RA in complex with IL-17RC or IL-17RD (7, 8). Both IL-17RA and IL-17RC are required for responsiveness to heterodimeric IL-17A/F (7). IL-17A promotes protective mucosal and epidermal inflammation in response to microbial infection (9‑12). It induces chemokine production, neutrophil influx, and the production of antibacterial peptides (9‑11). IL-17A/F likewise induces neutrophil migration, but IL-17F does not (11). IL-17A additionally enhances the production of inflammatory mediators by rheumatoid synovial fibroblasts and contributes to TNF-alpha induced shock (4, 13). In contrast, it can protect against the progression of colitis by limiting chronic inflammation (12). IL-17A encourages the formation of autoreactive germinal centers and exacerbates the onset and progression of experimental models of autoimmunity (14, 15). IL-17A has been shown to exert either tumorigenic or anti-tumor effects (16, 17).

Source
Recombinant Human IL17A, premium grade(ILA-H5219) is expressed from human 293 cells (HEK293). It contains AA Gly 24 - Ala 155 (Accession # Q16552-1).
Predicted N-terminus: Gly 24
Human IL17A, premium grade (ILA-H5219), designed for preclinical stage, has the same activity and performance with GMP Human IL-17A, which enables a seamless transition from preclinical development to clinical phases. Premium Grade product offer a cost efficient alternative of GMP Grade products for the early development phase when safety of raw materials is not top priority. By using Premium Grade products in early development phase, you can transition easily into clinical and commercial phase without need to revalidate the raw materials and modify manufacturing process.

Molecular Characterization
This protein carries no "tag".
The protein has a calculated MW of 15.1 kDa. The protein migrates as 16 kDa, 17 kDa and 19 kDa under reducing (R) condition, and 27-34 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under non-reducing (NR) condition (SDS-PAGE) due to glycosylation.

Endotoxin
Less than 0.1 EU per μg by the LAL method.

Sterility
The sterility testing was performed by membrane filtration method.

Mycoplasma
Negative.
 
Purity
>90% as determined by SDS-PAGE.
>95% as determined by SEC-MALS.

Formulation
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

Storage
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
-20°C to -70°C for 12 months in lyophilized state;
-70°C for 3 months under sterile conditions after reconstitution.

Bioactivity
Please refer to product data sheet.

Clinical and Translational Updates

(1)  "Qi-Ju-Di-Huang-Pill delays the progression of diabetic retinopathy"
Zhao, Ma, Tao et al
J Ethnopharmacol (2024)
(2)  "γδ T cells respond directly and selectively to the skin commensal yeast Malassezia for IL-17-dependent fungal control"
Ruchti, Tuor, Mathew et al
PLoS Pathog (2024) 20 (1), e1011668
(3) "Results of flow cytometric detection of gamma-deltaT cells in peripheral blood of patients with ankylosing spondylitis: a pilot study"
Man, Dong, Liu et al
Physiol Res (2023) 72 (6), 819-832
Showing 1-3 of 23306 papers.