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Heterologous in vivo aerobactin production. Shown are overlaid extracted ion chromatograms corresponding to the [M + H]+ masses of the metabolites ahLys, citryl-ahLys, and aerobactin from culture media supernatant of E. coli transformed and induced to express: A, iucB,D–CDFDuet-1; B, iucA,C–pETDuet-1; or C, both plasmids.
