BSF-1, Lymphocyte Stimulatory Factor 1

Accession

P51492

Unigene

Mmu.3375.

E.coli-derived Rhesus Macaque IL-4, His25-Ser153.

Approximately 14.9 kDa.

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标签（Tag）

None

外观（Physical Appearance）

Sterile Filtered White lyophilized (freeze-dried) powder.

> 96% by SDS-PAGE and HPLC analyses.

The ED₅₀ as determined by a cell proliferation assay using human TF-1 cells is less than 1.0 ng/mL, corresponding to a specific activity of > 1.0 × 10⁶ IU/mg. Fully biologically active when compared to standard.

< 1.0 EU per 1μg of the protein by the LAL method.

Lyophilized from a 0.2 μm filtered concentrated solution in 2 × PBS, pH 7.4, 5% trehalose.

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20°C. Further dilutions should be made in appropriate buffered solutions.