Recombinant Human STAT3, transcript variant 2, fused with His tag at C-terminal was expressed in E. coli.
Lyophilized from a 0.2 µM filtered solution of PBS, pH 7.4
Endotoxin level is <0.1 ng/µg of protein (<1EU/µg).
>95% as determined by SDS-PAGE and Coomassie blue staining
Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 µg/ml. Dissolve the lyophilized protein in 1X PBS. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.