IL-17;Human Recombinant Animal Free;25ug

IL-17;Human Recombinant Animal Free;25ug

Stock Code: 3571818
Manufacturer Part No: GF328
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Application


Research CategoryStem Cell Research


Research Sub CategoryGrowth Factors & Receptors


Disclaimer


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.


General description


Product Source: Protein is expressed in E.coli.
The protein is manufactured without the use of any animal products/reagents and is considered Animal-Free and can be used in protocols where possible transmisson of animal viruses and contamination must be avoided.


The originally described IL-17 protein, now known as IL-17A, is a homodimer of two 136 amino acid chains, secreted by activated T-cells that act on stromal cells to induce production of proinflammatory and hematopoietic bioactive molecules. Today, IL-17 represents a family of structurally-related cytokines that share a highly conserved C-terminal region but differ from one another in their N-terminal regions and in their distinct biological roles. The six known members of this family, IL-17A through IL-17F, are secreted as homodimers. IL-17A exhibits cross-species bioactivity between human and murine cells.
Recombinant human IL-17A is a 31.3 kDa disulfide-linked homodimer of two 137 amino acid polypeptide chains.


Physical form


Product is presented without additives and is filtered through a 0.2 micron filter before lyophilization.


Quality


Assay #1: Determined by the dosedependent induction of IL-6 in primary human foreskin fibroblast. The expected ED50 is ≤ 2.0 ng/ml, corresponding to a specific activity of ≥ 5 x 10^5 units/mg.
Assay #2: Measured by its ability to induce IL-6 production by NHDF cells.


Storage and Stability


Store at -20°C for up to 4 months from date of receipt Centrifuge the vial prior to opening.
Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein and store in working aliquots at -20°C.

Quality Level100
ManufacturerSIGMA-ALDRICH
Impurities﹤0.1 µg/mg protein endotoxin (<1 EU/µg)

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