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Figure 3. Production of recombinant dispersin B in E. coli. The His6-tagged enzyme was purified from the soluble fraction of the E. coli cells by chromatography on a Co2+ column and eluted using an imidazole step-gradient. Samples were analyzed by sodium dodecyl sulfate PAGE on a 12% gel under reducing conditions. The gel was stained with Coomassie brilliant blue.
