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Leadgene Leadgene
Human IL-31, His Tag, E. coli
Catalog Number

LDG035PHE

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  • Specifications
    • Species of Origin

      Human

      Expression system

      Escherichia coli

    • Affinity Tag

      His Tag (C-term)

      Buffer

      Lyophilized from a 0.2 µm filtered solution of PBS, pH 8.0.

    • Purity

      >98% as determined by SDS-PAGE analysis.

      Molecular weight

      The protein has a calculated MW of 16.78 kDa.
      The protein migrates as 18 kDa under reducing condition (SDS-PAGE analysis).

    • Activity

      Measured by its ability to induce A549 cells proliferation. The ED₅₀ for this effect is < 40 ng/mL.

      Endotoxin level

      <0.1 EU per 1 μg of the protein by the LAL method.

    • Form

      Lyophilized

  • Background
    • Background

      Interleukin 31 (IL-31) is an 18 kDa cytokine with 142 amino acid residues. IL-31 is mainly secreted from activated CD4+ T cells and binds to a receptor called IL-31RA. Upon binding to 31RA, IL-31 activates several signal pathways like MAPK, PI3K/AKT, and Jak/STAT pathways. It is critical in regulating many biological functions, such as cell proliferation, hematopoiesis, induction of cytokines, inflammation, and immune response.

      Synonyms

      Interleukin-31

    • Uniprot ID

      #Q6EBC2

      Sequence Note

      Ser24-Thr164

  • Instruction
    • Reconstitution

      It is recommended to reconstitute the lyophilized protein in sterile H₂O to a concentration not less than 200 μg/mL and incubate the stock solution for at least 20 min to ensure sufficient re-dissolved.

      Shipping

      The product is shipped with polar packs. Upon receipt, store it immediately at -20°C or lower for long term storage.

    • Stability & Storage

      This product is stable after storage at:

      • -20°C for 12 months in lyophilized state from date of receipt.
      • -20°C or -80°C for 1 month under sterile conditions after reconstitution.

      Avoid repeated freeze/thaw cycles.

  • Image
    SDS-PAGE analysis of recombinant human IL-31.

    SDS-PAGE analysis of recombinant human IL-31.

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  • Datasheet & Documents
    MSDS
    Manual
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