Recombinant Human OSM Protein (Ala26-Arg221)
Product Description
Cat
IMP-9919
Official Symbol
OSM
Product Overview
Recombinant human Oncostatin M protein (Ala26-Arg221) without tag was expressed in Human embryonic kidney cell.
Description
This gene encodes a member of the leukemia inhibitory factor/oncostatin-M (LIF/OSM) family of proteins. The encoded preproprotein is proteolytically processed to generate the mature protein. This protein is a secreted cytokine and growth regulator that inhibits the proliferation of a number of tumor cell lines. This protein also regulates the production of other cytokines, including interleukin 6, granulocyte-colony stimulating factor and granulocyte-macrophage colony stimulating factor in endothelial cells. This gene and the related gene, leukemia inhibitory factor, also present on chromosome 22, may have resulted from the duplication of a common ancestral gene. Alternative splicing results in multiple transcript variants, at least one of which encodes an isoform that is proteolytically processed.
Expression System
HEK293
Species
Human
Tag
Tag Free
Predicted N Terminal
Ala26&Ile28
Form
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Molecular Mass
Predicted Molecular Mass: 22 kDa
SDS-PAGE: 27-35 kDa, reducing conditions
Protein length
Ala26-Arg221
Bio-activity
Measured in a cell proliferation assay using TF-1 human erythroleukemic cells. Kitamura, T. et al. (1989) J. Cell Physiol. 140:323. The ED50 for this effect is 0.05-0.3 ng/mL.
Endotoxin
<0.10 EU/μg of the protein by the LAL method.
Purity
>95%, by SDS-PAGE with silver staining
Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 centigrade as supplied.
1 month, 2 to 8 centigrade under sterile conditions after reconstitution.
3 months, -20 to -70 centigrade under sterile conditions after reconstitution.
Reconstitution
Reconstitute at 100 μg/mL in sterile PBS.
Data Sheet MSDS
For research or industrial raw materials, not for personal medical use!

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