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Our Abpromise guarantee covers the use of ab50036 in the following tested applications.
The ED50 was determined by TGF-beta1's ability to inhibit the mouse IL-4-dependent proliferation of mouse HT-2 cells is = 0.05 ng/ml, corresponding to a specific activity of ≥ 2 x 107 units/mg.
TGF-beta is secreted predominantly as latent complexes which are stored at the cell surface and in the extracellular matrix. The release of biologically active TGF-β isoform from a latent complex involves proteolytic processing of the complex and /or induction of conformational changes by proteins such as thrombospondin-1. TGF-β1 is the most abundant isoform secreted by almost every cell type.
Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
Endotoxin level is less than 0.1 ng per µg (1EU/µg).
This product is an active protein and may elicit a biological response in vivo, handle with caution.