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You are here:Home » Molecular Biology » MB-Growth Factors-SDF » Stromal Cell Derived Factor 1 alpha, Recombinant, Human (SDF1a)

Stromal Cell Derived Factor 1 alpha, Recombinant, Human (SDF1a)


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Recombinant protein corresponding to 68aa from human Stromal Cell Derived Factor 1 alpha expressed in E. coli.
Catalog #S7975-50B
Biological ActivityED50 Range= 5-15ng/ml determined by concentration dependent chemotaxis with human peripheral mononuclear cells culture with IL-2.
Specific Activity2.0x10e5-6.7x10e4 units/mg
Storage and StabilityLyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with sterile dH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Molecular Weight~8kD
SourceE. coli
Purity~95% (SDS-PAGE, HPLC). Endotoxin: 0.1ng/ug
ConcentrationNot determined
FormSupplied as a lyophilized powder. Carrier free. Reconstitute with sterile dH2O to 0.1-1mg/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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