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Key Documents

GF324

Sigma-Aldrich

IL-1 Receptor Antagonist,
Human Recombinant Animal Free

Synonym(s):

IL-1, IL1RN

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About This Item

UNSPSC Code:
12352202
eCl@ss:
32160405
NACRES:
NA.75

impurities

<0.1 μg/mg protein endotoxin (<1 EU/μg)

Quality Level

UniProt accession no.

shipped in

dry ice

General description

Interleukin-1 receptor antagonist (IL-1RA) is a naturally occurring inflammatory inhibitor protein. It inhibits the activity of IL-1α and IL-1β by competitively blocking their binding to type I and type II receptors. IL-1Ra is produced by corneal epithelial cells, monocytes, neutrophils, macrophages, and fibroblasts. Therapeutically, IL-1Ra may help in the treatment of sepsis, cachexia, rheumatoid arthritis, chronic myelogenous leukemia, asthma, psoriasis, and inflammatory bowel disease. Recombinant human IL-1Ra is a 17.2 kDa protein consisting of 153 amino acid residues.
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.

Application

Research Category
Stem Cell Research
Research Sub Category
Growth Factors & Receptors

Quality

The ED50 was Determined by its ability to inhibit the IL-1α stimulation of murine D10S cell. The expected ED50 is 20-40 ng/ml in the presence of 50 pg/ml of IL-1alpha.

Physical form

Product is presented in 20 mM Tris, pH 8.0 and is filtered through a 0.2 micron filter before lyophilization.

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.

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.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1


Certificates of Analysis (COA)

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