IFN beta Recombinant Protein

Determined by a cytotoxicity assay using human TF-1 cells. The expected ED50 is ≤ 0.1 ng/ml, corresponding to a specific activity of ≥ 1 x 107units/mg.

The lyophilized IFN beta recombinant protein is stable for at least 2 years from date of receipt at -20°C. Reconstituted IFN beta is stable for at least 3 months when stored in working aliquots with a carrier protein at -20°C. As with any protein, exposing IFN beta recombinant protein to repeated freeze / thaw cycles is not recommended. When working with proteins care should be taken to keep recombinant protein at a cool and stable temperature.

MSYNLLGFLQ RSSNFQCQKL LWQLNGRLEY CLKDRMNFDI PEEIKQLQQF QKEDAALTIY EMLQNIFAIF RQDSSSTGWN ETIVENLLAN VYHQINHLKT VLEEKLEKED FTRGKLMSSL HLKRYYGRIL HYLKAKEYSH CAWTIVRVEI LRNFYFINRL TGYLRN