Human IL-33 is a proinflammatory protein that shares structural and functional characteristics with the IL-1 cytokine family. It binds and signals through the IL-1RL1/ST2 receptor activating NF-kappaB and MAP kinases. IL-33 induces production of TH2 cell related cytokines, including IL-4, IL-5 and IL-13, and exerts multiple inflammation related bioactivities.
Recombinant human IL-33 is a 17.9 kDa protein containing 159 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.

Research Category
Stem Cell Research

Research Sub Category
Growth Factors & Receptors

Product is presented in 10 mM Sodium Phosphate, pH 8.0 + 0.5 mM DTT and is filtered through a 0.2 micron filter before lyophilization.

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.

Determined by its ability to stimulate the proliferation of mouse D10S cells. The expected ED50 is ≤ 0.05 ng/ml, corresponding to a specific activity of ≥2 x 10^7 units/mg.

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.