Leadgene Leadgene
Human FGF-21, His Tag, E. coli
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  • Specifications
    • Species of Origin


      Expression system

      Escherichia coli

    • Affinity Tag

      His Tag (C-term)


      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 20.35 kDa.
      The protein migrates as 25 kDa under reducing condition (SDS-PAGE analysis).

    • Activity

      Measure by its ability to induce proliferation in BaF3 cells transfected with human FGFRIIIc. The ED₅₀ for this effect is <0.4 μg/mL.

      Endotoxin level

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

    • Form


  • Background
    • Background

      Fibroblast Growth Factors-21 (FGF-21) is a 22.3 kDa member of the fibroblast Growth Factors with 209 amino acid residues. FGF-21 is expressed from liver and cardiomyocytes. FGF-21 is a key protein that regulates important metabolic pathways, and modulates cellular function, metabolism, and senescence. It can stimulate glucose uptake in differentiated adipocytes via the induction of glucose transporter SLC2A1 /GLUT1 expression.


      Fibroblast Growth Factors 21

    • Uniprot ID


      Sequence Note


  • 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.


      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 FGF-21.

    SDS-PAGE analysis of recombinant human FGF-21.

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  • Publication
  • Datasheet & Documents

Disclaimer:For Research Use or Further Manufacturing Only.

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