Recombinant Human IL-33 Protein

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SDS-Page: Human IL-33 Protein [NBP2-34871]

Product Details

Summary
Reactivity HuSpecies Glossary
Applications Func, PAGE
Format
Carrier-Free
Concentration
LYOPH

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Recombinant Human IL-33 Protein Summary

Description
A single, non-glycosylated biologically active polypeptide chain corresponding to 159 residues of IL33.

Source: E. coli

Amino Acid Sequence: SITGISPIT EYLASLSTYN DQSITFALED ESYEIYVEDL KKDEKKDKVLLSYYESQHPS NE SGDGVDGK MLMVTLSPTK DFWLHANNKE HSVELHKCEKPLPDQAFFVL HNMHSNCVSF ECKTDPGVFI GVKDNHLALI KVDSSENLCT ENILFKLSET

Preparation
Method
Novus' biologically active proteins are stringently purified to provide only the safest and most highly effective proteins available. This protein was expressed in E. coli, purified by HPLC, QC tested by SDS-PAGE and Western Blot and validated on appropriate cell lines for bioactivity. All HPLC and bioactivity data is provided for your assurance.
Details of Functionality
IL33 Protein is fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using murine D10S cells is less than 0.05 ng/ml, corresponding to a specific activity of > 2.0 x 10^7 IU/mg.
Source
E. coli
Protein/Peptide Type
Biologically Active Protein
Gene
IL33
Purity
> 97 % pure by SDS-PAGE and HPLC
Endotoxin Note
Less than 1 EU/ug of endotoxin as determined by LAL method.

Applications/Dilutions

Theoretical MW
17.9 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Packaging, Storage & Formulations

Storage
Store at -20 to -70C as supplied. After reconstitution, store at 2 to 8C for 1 month and at -20 to -70C for long term storage. Avoid repeated freeze-thaw cycles.
Buffer
Lyophilized from a 0.2 um filtered concentrated solution in 20 mM PB, 150 mM NaCl, 1mM EDTA, pH7.4.
Concentration
LYOPH
Purity
> 97 % pure by SDS-PAGE and HPLC
Reconstitution Instructions
Reconstitute with sterilized distilled water or 0.1% BSA aqueous buffer to a final concentration of 0.1 - 1.0 mg/ml.

Notes

This lyophilized preparation is stable at 2-8 degrees C, but should be kept at -20 degrees C for long term storage, preferably desiccated. Upon reconstitution, the preparation is most stable at -20 to -80 degrees C, and can be stored for one week at 2-8 degrees C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 degrees C to -80 degrees C. Avoid repeated freeze/thaw cycles.

Alternate Names for Recombinant Human IL-33 Protein

  • C9orf26
  • C9orf26chromosome 9 open reading frame 26 (NF-HEV)
  • DKFZp586H0523
  • DVS27
  • DVS27-related protein
  • IL1F11
  • IL-1F11
  • IL33
  • IL-33
  • interleukin 33
  • Interleukin-1 family member 11
  • interleukin-33
  • NFHEV
  • NF-HEV
  • NF-HEVNFEHEV
  • Nuclear factor from high endothelial venules
  • RP11-575C20.2

Background

IL-33, encoded by IL-33 gene located on the Chr.9 in humans, is a 30 kDa proinflammatory protein belonging to the IL-1 superfamily and it shares less than 20 % a.a. sequence identity with other members. IL-33 secreted by high endothelial venules at high levels, which is found in tonsils, peyer patches and mesenteric lymph nodes, but not in placenta. It is upregulated in arterial smooth muscle, dermal fibroblasts, and keratinocytes following IL1alpha or IL1beta stimulation. It elicits its biological effects by interacting with IL1RL1/ST2 and its stimulation recruits MYD88, IRAK1, IRAK4, and TRAF6, followed by phosphorylation of MAPK3/ERK1 and/or MAPK1/ERK2, MAPK14, and MAPK8. IL-33 mature protein has 52-58 % a.a. sequence identity with mouse and rat IL-33.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Peptides and proteins are guaranteed for 2 years from date of receipt.

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Blogs on IL-33.

Interleukin 33 (IL-33) - A dual function cytokine
IL-33 is a member of the interleukin family of cytokines that regulates a wide variety of cellular functions. Its receptor is ST2, an IL-1 receptor family member that also acts as a negative regulator of TLR-IL-1R signaling and the IL-1R accessory...  Read full blog post.

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Bioinformatics

Gene Symbol IL33
Entrez
Uniprot