Human Activin B, His Tag, E. coli

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Catalog Number

LDG064PHE

Datasheet

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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 13.75 kDa.
    The protein migrates as 14 kDa under reducing condition (SDS-PAGE analysis).

  • Activity

    Measure by its ability to induce hemoglobin expression in K562 cells. The ED₅₀ for this effect is <0.7 ng/mL. The specific activity of recombinant human Activin B is > 1.5 x 10⁶ IU/mg.

    Endotoxin level

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

  • Form

    Lyophilized

• Background

  • Background

    Activin B is the cytokine of the TGF-beta family, which is a 13 kDa protein containing 115 amino acid residues. Activin B has the wide variety of biological function including stem cell differentiation, inflammation, bone remodeling and neural development. They also have a role in regulation of FSH secretion. Activin B induces the phosphorylation of Smad which binds the smad binding element.

    Synonyms

    Inhibin beta B chain, Activin beta-B chain, INHBB

  • Uniprot ID

    #P09529

    Sequence Note

    Gly293-Ala407

• 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

  Human Activin B, His Tag, E. coli (LDG064PHE) induced hemoglobin expression in K562 cells, with the ED50 at 0.651 ng/mL.

  SDS-PAGE analysis of recombinant human Activin B.

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• Datasheet & Documents

  Datasheet

  MSDS

  Manual

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Disclaimer：For Research Use or Further Manufacturing Only.