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    long-acting interferon drug product company in Hepatitis and Cytokines
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    Human Interleukin 4 (rHuIL-4)

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    Human Interleukin 4 (rHuIL-4) Human Interleukin 4 (rHuIL-4)

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    Human Interleukin 4 (rHuIL-4)

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    Availability:
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    • SJB02

    • 10μg, 30μg, 100μg

    Specifications and Use

    Description:

    Interleukin4 (IL4), also known as B cell stimulating factor 1, consists of 129 amino acid residues. It contains 6 cysteines, which are involved in the formation of 3 pairs of disulfide bonds in the molecule.

    Source: Yeast.

    Molecular Mass: Approximately 30.0kD glycosylated protein.

    Purity: ≥97%.

    Endotoxin Level: <1EU/µg, determined by the LAL method.

    Biological Activity:

    Measured in a cell proliferation assay using a human factor-dependent cell line, TF-1. The specific activity shall be not less than 1×107IU/mg.

    Formulation:

    Lyophilized from a 0.2μm filtered solution in PBS, pH7.4.

    Reconstitution:

    It is recommended to centrifuge at 10,000rpm for 30-60 sec or 3000rpm for 5 min before opening the tube, and then reconstitute with 0.2ml sterile water.  

    Storage:

    • Lyophilized samples are stable for 36 months from date of manufacture at -20℃ to -70℃.

    • Upon reconstitution, this cytokine can be stored under sterile conditions at 2- 8℃ for one month or at -20℃ to -70℃ in a manual defrost freezer for three months without detectable loss of activity.

    • Avoid repeated freeze-thaw cycles.


    For Laboratory Use Only.


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