Recombinant Murine Interleukin-33 (rMuIL-33)
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.
Product Specifications
Source
Escherichia coli.
Field of Research
Immunology & Inflammation
Endotoxin
Less than 1EU/mg of rmIL-33 as determined by LAL method.
Purity
>98% by SDS-PAGE and HPLC analyses.
Bioactivity
The ED50 was determined by the dose-dependent stimulation of the proliferation of murine D10S cells is ≤ 0.5 ng/ml, corresponding to a specific activity of ≥ 2 x 106units/mg.
Form
Lyophilized from a 0.2mm filtered solution in PBS, EDTA and DTT.
Molecular Weight
Approximately 17.5 kDa protein containing 158 amino acid residues
Storage Conditions
This lyophilized preparation is stable at 2-8°C, but should be kept at -20°C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8°C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20°C to -70°C. Avoid repeated freeze/thaw cycles.
Notes
For research use only.
Applications Notes
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at < -20°C. Further dilutions should be made in appropriate buffered solutions.
Preservative
Lyophilized from a 0.2mm filtered solution in PBS, EDTA and DTT.
AA Sequence
SIQGTSLLTQ SPASLSTYND QSVSFVLENG CYVINVDDSG KDQEQDQVLL RYYESPCPAS QSGDGVDGKK LMVNMSPIKD TDIWLHANDK DYSVELQRGD VSPPEQAFFV LHKKSSDFVS FECKNLPGTY IGVKDNQLAL VEEKDESCNN IMFKLSKI
Available Sizes
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