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You are here:Home » Growth Factors, Cytokines » Growth Factors-Interleukin » Interleukin 15, Recombinant, Human (IL-15)

Interleukin 15, Recombinant, Human (IL-15)

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Specifications

Catalog #I8437B
Molecular Weight 12.9kD, 114 amino acid residues
SourceEscherichia coli
Purity Recombinant human interleukin-15 is >98% pure by SDS-PAGE and HPLC analyses.
Endotoxin < 0.1 ng/ug
Biological Activity ED50 0.5 ng/mL ( 2 x 106 units/mg). The biological activity is determined by measuring the interleukin-15 dose-dependent proliferation of murine CTLL-2 cells. A concentration range of 0.1-10 ng/mL is effective for most in vitro applications. The optimal concentration should be determined for each specific application.
Storage and Stability. For long-term storage, aliquot and store at -20°C. Aliquots are stable for at least 6 months at -20°C. Further dilutions should be made in buffered solution containing carrier protein such as PBS + 0.1% 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.
SourceEscherichia coli
Purity98% by SDS-PAGE and HPLC anaylses
FormSupplied as a liquid in 10mM sodium phosphate, pH 8.5, carrirer-free. Further dilutions should be made in buffered solution containing carrier protein such as PBS + 0.1% BSA.
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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