Stable in lyophilized state at -20°C for 1 year after receipt. Sterile stock solutions reconstituted with carrier protein are stable at 4°C for 2 months and at -20°C for 6 months. Avoid repeated freeze-thaw cycles.
Maintain sterility. Storage at -20°C should be in a manual defrost freezer.
|Purity||>98% as determined by SDS-PAGE of 6 μg reduced (+) and non-reduced (-) recombinant hTGF-β2. All lots are greater than 98% pure.|
|Endotoxin||Less than 0.01 ng endotoxin/1 μg hTGF-β2.|
|Activity||The bioactivity of recombinant hTGF-β2 was was determined by assessing inhibition of IL-4 induced HT-2 cell proliferation. The ED50 of each lot is between 0.1-0.3 ng/ml.|
|Molecular Formula||Recombinant hTGF-β2 contains no "tags" and the nonglycosylated protein has a calculated MW of 12,719. DTT-reduced protein migrates as a 12 kDa polypeptide and the non-reduced cystine-linked homodimer migrates as a 24 kDa protein. The expected amino-terminal ALDAA of recombinant hTGF-β2 was verified by amino acid sequencing.|
Recombinant human TGF-β2 (hTGF-β2) Ala303-Ser414 (Accession #NP_003229) was expressed in human 293 cells at Cell Signaling Technology.
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