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Human IL17 / IL17A Protein

CTLA-8,CTLA8,IL-17,IL-17A,IL17

Catalog Number P12047-HNAE
Organism Species Human
Host E. coli
Synonyms CTLA-8,CTLA8,IL-17,IL-17A,IL17
Molecular Weight The recombinant human IL17A consists of 137 amino acids and predicts a molecular mass of 15.7 KDa. It migrates as an approximately 16 KDa band in SDS-PAGE under reducing conditions.
predicted N Met
SDS-PAGE
Purity > 97 % as determined by SDS-PAGE
Protein Construction A DNA sequence encoding the mature form of human IL17A (Q16552) (Ile20-Ala155) was expressed, with a N-terminal Met.
Bio-activity Measured by its ability to induce IL-6 secretion by HFF human foreskin fibroblast cells.
The ED50 for this effect is typically 15-75 ng/mL.
Research Area Cancer |Invasion microenvironment |Angiogenesis |Cytokine & Receptor |Interleukin & Receptor |IL-17 family & Receptor |
Formulation Lyophilized from sterile PBS, pH 7.4
1. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
Background IL17, also known as IL17a, is a cytokine belongs to the IL-17 family. Cytokines are proteinaceous signaling compounds that are major mediators of the immune response. They control many different cellular functions including proliferation, differentiation and cell survival/apoptosis but are also involved in several pathophysiological processes including viral infections and autoimmune diseases. Cytokines are synthesized under various stimuli by a variety of cells of both the innate (monocytes, macrophages, dendritic cells) and adaptive (T- and B-cells) immune systems. The IL-17 family of cytokines includes six members, IL-17/IL-17A, IL-17B, IL-17C, IL-17D, IL-17E/IL-25, and IL-17F, which are produced by multiple cell types. IL-17 regulates the activities of NF-kappaB and mitogen-activated protein kinases. This cytokine can stimulate the expression of IL6 and cyclooxygenase-2 (PTGS2/COX-2), as well as enhance the production of nitric oxide (NO). High levels of IL-17 are associated with several chronic inflammatory diseases including rheumatoid arthritis, psoriasis and multiple sclerosis.
Reference
  • Andoh A, et al. (2002) IL-17 selectively down-regulates TNF-alpha-induced RANTES gene expression in human colonic subepithelial myofibroblasts. J Immunol. 169(4):1683-7.
  • Kotake S, et al. (1999) IL-17 in synovial fluids from patients with rheumatoid arthritis is a potent stimulator of osteoclastogenesis. J Clin Invest. 103(9):1345-52.
  • Laan M, et al. (1999) Neutrophil recruitment by human IL-17 via C-X-C chemokine release in the airways. J Immunol. 162(4):2347-52.
  • Shin HC, et al. (1999) Regulation of IL-17, IFN-gamma and IL-10 in human CD8(+) T cells by cyclic AMP-dependent signal transduction pathway. Cytokine. 10(11):841-50.