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The prokaryotic expression of pET 32a-ScChi in Escherichia coli Rosetta cells. 1, blank (E. coli Rosetta cells) without induction; 2, blank induction for 1 h; 3, control (E. coli Rosetta cells containing pET 32a vector) without induction; 4, control induction for 1 h; 5, pET 32a-ScChi without induction; 6, pET 32a-ScChi induction for 1 h; 7, protein marker; the induced protein is shown by the arrow.
