Stem Cell Factor (SCF) is a hematopoietic growth factor that exerts its activity at the early stages of hematopoiesis. SCF stimulates the proliferation of myeloid, erythroid, and lymphoid progenitors in bone marrow cultures.||Source:|Recombinant protein corresponding to 165aa residues from human Stem Cell Factor, expressed in E. coli. ||Molecular Weight: |~18.9kD||Biological Activity:|The ED50, as determined by the dose-dependent stimulation of the proliferation of human TF-1 cells, is <2ng/ml, corresponding to a specific activity of >5x10e5units/mg.||Endotoxin:|<0.1ng/ug||Storage and Stability:|Lyophilized powder may be stored at -20°C. Stable for 12 months after receipt at -20°C. Reconstitute with sterile ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Reconstituted product is stable for 6 months at -20°C. 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.

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