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Fructose transport in wild-type (⧫) and BP301 (frtR mutant) (▪) strains. Cells were grown in AA/8 to an OD720 of 0.250, fructose was added at time zero, and transport was measured as the disappearance of fructose from the medium over time (hours [A] or minutes [B]). Fructose was measured using a fructose assay kit (Sigma-Aldrich).
