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Recombinant Human Oncostatin M

Cat. No.: OSM-25H
Product Overview: Recombinant Human Oncostatin M produced inE. coliis a single non-glycosylated polypeptide chain containing 227 amino acids and having a molecular mass of 26kDa.
Description: Oncostatin M (OSM) is a growth and differentiation factor that participates in the regulation of neurogenesis, osteogenesis and hematopoiesis. Produced by activated T cells, monocytes and Kaposi"s sarcoma cells, OSH can exert both stimulatory and inhibitory effects on cell proliferation. It stimulates the proliferation of fibroblasts, smooth muscle cells and Kaposi"s sarcoma cells, but, inhibits the growth of some normal and tumor cell lines. It also promotes cytokine release (e.g. IL-6, GM-CSF and G-CSF) from endothelial cells, and enhances the expression of low-density lipoprotein receptor in hepatoma cells. OSM share several structural and functional characteristics with LIF, IL-6, and CNTF. Human OSM is active on murine cells.
Purity: >95% by SDS-PAGE and HPLC analyses.
Specific Activity: Fully biologically active when compared to the standard. The ED50 as determined by the dose-dependent stimulation of the proliferation of human TF-1 cells is < 2 ng/ml, corresponding to a specific activity of > 5×105units/mg.
Formulation: Lyophilized from a 0.2mm filtered concentrated (1.0mg/ml) solution in PBS, pH 7.4.
Endotoxin: Less than 1EU/mg of rHuOSM as determined by LAL method.
Reconstitution: 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 solution
Storagee: This lyophilized preparation is stable for several weeks at 2-8°C, but should be kept at -20°C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8°C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20°C to -70°C. Avoid repeated freeze/thaw cycles.
Gene Name: OSM
Synonyms: MGC20461; oncostatin M; Oncostatin-M; Oncostatin-M Precursor; OSM
Gene ID: 5008
mRNA Refseq: NM_020530
Protein Refseq: NP_065391
MIM: 165095
UniProt ID: P13725
Chromosome Location: 22q12.2
Pathway: Cytokine-cytokine receptor interaction; Jak-STAT signaling pathway
Function: cytokine activity; oncostatin-M receptor binding

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