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You are here:Home » Growth Factors, Cytokines » Growth Factors-Interleukin » Interleukin 4, Recombinant, Human (IL-4, B Cell Stimulatory Factor 1, BSF1, Binetrakin, HCGF, Hodgkin's Cell Growth Factor, IA Inducing Factor, Lymphocyte Stimulatory Factor 1, Macrophage Fusion Factor, Mast Cell Growth Factor 2, MCGF2, MFF, MGC79402, Pit

Interleukin 4, Recombinant, Human (IL-4, B Cell Stimulatory Factor 1, BSF1, Binetrakin,
HCGF, Hodgkin's Cell Growth Factor, IA Inducing Factor, Lymphocyte Stimulatory Factor 1,
Macrophage Fusion Factor, Mast Cell Growth Factor 2, MCGF2, MFF, MGC79402, Pit

Pricing

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Specifications

Recombinant Human Interleukin-4 is a single, non-glycosylated polypeptide chain containing 130aa and having a molecular weight of 15kD. The sequence of the first five N-terminal aa was determined to be Met-His-Lys-Cys-Asp. Contains less than 1% dimers and aggregates.
Source: E. coli
Catalog #I8426-02C
Molecular Weight ~15kD
ActivityThe ED50 as determined by dose-dependent stimulation of TF-1 cells is <0.2ng/ml, corresponding to a specific activity of 5x10e6IU/mg.
Storage and StabilityLyophilized powder may be stored at 4°C for short-term only. Stable for at least 6 months at -20°C. Reconstitute with sterile deionized water to a concentration 100ug/ml. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Molecular Weight~15kD
SourceE. coli
Purity98% (RP-HPLC, SDS-PAGE).
FormSupplied as a lyophilized powder from water containing no additives. No preservative added. Reconstitute with sterile deionized water to a concentration 100ug/ml.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.


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