biological source
human
recombinant
expressed in Saccharomyces cerevisiae
assay
≥98% (HPLC), ≥98% (SDS-PAGE)
form
lyophilized
mol wt
~19.5 kDa
packaging
pkg of 10 μg
impurities
endotoxin, tested
NCBI accession no.
shipped in
wet ice
storage temp.
−20°C
Gene Information
human ... IL24(11009)
General description
IL24 is a member of the IL10 family of cytokines. It was identified as a gene induced during terminal differentiation in melanoma cells. IL-10B encoded can induce apoptosis selectively in various cancer cells. Overexpression IL-24 leads to elevated expression of several GADD family genes, which correlates with the induction of apoptosis. The phosphorylation of mitogen-activated protein kinase 14 (MAPK7/P38), and heat shock 27kDa protein 1 (HSPB2/HSP27) are found to be induced by this gene in melanoma cells, but not in normal immortal melanocytes. Alternatively spliced transcript variants encoding distinct isoforms have been reported. The glycosylation is essential for activity of IL-24. Functionally, IL-24 has diverse activities. At low concentrations, it induces type I proinflammatory cytokines such as IFN-γ, IL-1β, IL-12 and TNF-α. At high concentration, it is a strong inducer of apoptosis in tumor cells, but not normal cells. mda-7/IL-24 is being hailed as a ‘magic bullet′ for cancer gene therapy. Recombinant human Il-24 produced in yeast is a single, glycosylated, polypeptide chain containing 158 amino acids and having a molecular mass of 18 kDa. As a result of glycosilation, the protein migrates at 19.5 kDa on SDS-PAGE.
Physical form
Lyophilized from PBS with BSA as a carrier.
Preparation Note
Centrifuge the vial prior to opening. Avoid freeze-thaw cycles.
Reconstitute in sterile dH2O not less than 100 μg/ml. This solution can then be diluted into other aqueous buffers.