"IL31" Related Products

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GMP Recombinant Human IL31 protein

Cat.No.: IL31-4336HG
Product Overview: Recombinant Human IL31 was produced in E. coli using non-animal reagents in an animal-free facility under cGMP guidelines.
Description: Human Interleukin-31 (IL-31) is a T-cell derived cytokine that shares several structural and functional characteristics with IL-6, Oncostatin M, LIF, and Cardiotrophin-1. It signals through a receptor complex comprised of GPL (GP130-like, IL-31RA) and OSMR (Oncostatin M receptor). GPL/OSMR signaling is a strong activator of STAT3 and STAT5, and can also activate STAT1, Jak1, and Jak2 signaling pathways. IL-31 regulated immune responses have been implicated in skin physiology and inflammatory skin diseases.
Source: E. coli
Species: Human
Form: Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH7.4.
Bio-activity: The specific activity is determined by inducing STAT3 activation using human U-87 MG cells. 5 ng/mL of IL31 can effectively induce STAT3 activation.
Molecular Mass: Approximately 15.8 kDa, a single non-glycosylated polypeptide chain containing 141 amino acids.
AA Sequence: SHTLPVRLLRPSDDVQKIVEELQSLSKMLLKDVEEEKGVLVSQNYTLPCLSPDAQPPNNIHSPAIRAYLKTIRQLDNKSVIDEIIEHLDKLIFQDAPETNISVPTDTHECKRFILTISQQFSECMDLALKSLTSGAQQATT
Endotoxin: Less than 1 EU/μg of the protein by LAL method.
Purity: >97% by SDS-PAGE and HPLC analyses.
Storage: This lyophilized preparation is stable at 2-8 centigrade, but should be kept at -20 centigrade for long term storage, preferably des centigradecated. Upon reconsitution, the preparation is stable for up to one week at 2-8 centigrade. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 centigrade to -70 centigrade. Avoid repeated freeze/thaw centigrade centigradeles.
Reconstitution: 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 centigrade. Further dilutions should be made in appropriate buffered solutions.
Quality Statement: Our GMP proteins are produced according to relevant sections of the following documents: WHO TRS, No. 822, 1992 Annex 1, Good Manufacturing Practices for Biological Products; USP Chapter 1043, Ancillary Materials for Cell, Gene and Tissue-Engineered Products and USP Chapter 92, Growth Factors and Cytokines Used in Cell Therapy Manufacturing.
Shipping: The product is shipped at ambient temperature. Upon receipt, store it immediately at the recommended temperature.
Gene Name: IL31 interleukin 31 [ Homo sapiens ]
Official Symbol: IL31
Synonyms: IL31; interleukin 31; interleukin-31; IL 31; IL-31;
Gene ID: 386653
mRNA Refseq: NM_001014336
Protein Refseq: NP_001014358
MIM: 609509
UniProt ID: Q6EBC2

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Optional requirements on this protein    +Expand
C-fusion    N-fusion   Non-tagged
His    GST   Fc   Others
<1.0 eu/μg    <0.1 eu/μg   <0.01 eu/μg   Not required
Monomer Isolation    Dimer Isolation    Not required
>80% by SDS-PAGE    >90% by SDS-PAGE   >95% by SDS-PAGE   Others

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