Home / Product Category / Reagents / Interleukins / 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)

Strength:
Availability:
Quantity:
 
 
  • 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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