Name: Recombinant Human Interleukin-31/IL-31
Price: Inquiry

- Overview
  - MW : 15.8kD. Recombinant Human Interleukin-31 is produced by our E.coli expression system and the target gene encoding Ser24-Thr164 is expressed. Human Interleukin 31 (IL-31) is a cytokine containing a four-helix bundle structure. It shares several structural and functional characteristics with IL-6, Oncostatin M, LIF, and Cardiotrophin-1. Human IL-31 cDNA encodes a 164 amino acid precursor that contains a 23 amino acid signal peptide and a 141 amino acid mature protein. Human and mouse IL-31 share 24% sequence identity in the mature region. IL-31 is mainly associated with activated T cells and is preferentially expressed by type 2 helper T cells (Th2). IL-31 signals via a heterodimeric receptor complex composed of a gp130 related molecule termed IL-31RA (also GPL and GLMR) and an Oncostatin M receptor (OSM R beta). The IL-31 receptor is constitutively expressed by keratinocytes and upregulated by IFN gamma on monocytes. 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. Studies have shown that IL31 induces severe pruritis (itching) and dermatitis in transgenic mice.
    
    Please contact us at for specific academic pricing.
- Properties
  - Source
    
    E. coli
    
    Type
    
    Recombinant Proteins
    
    Formulation
    
    Lyophilized from a 0.2 µm filtered solution of 20mM PB, 150mM NaCl, pH 7.4.
    
    Storage
    
    Lyophilized protein should be stored at -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at -20°C for 3 months.
    
    Endotoxin
    
    Less than 0.1 ng/µg (1 IEU/µg) as determined by LAL test.
    
    Activity
    
    The ED50 for this effect is less 5 ng/mL, measured by inducing STAT3 activation in U87 MG human glioblastoma/astrocytoma cells.
    
    More Information
    
    UniProt
    
    Q6EBC2
    
    Gene ID
    
    386653
    
    * For Research Use Only. Not for use in diagnostic/therapeutics procedures.
- Applications
  - Application Description
    
    Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 µg/ml. Dissolve the lyophilized protein in ddH2O. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.

Recombinant Human Interleukin-31/IL-31

Recombinant Human Interleukin-31/IL-31

More Information

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