Fig.Ā 2From: Iterative cycle of widely targeted metabolic profiling for the improvement of 1-butanol titer and productivity in Synechococcus elongatusa In-flask 1-butanol titers from BUOHSE and DC7. Samples were taken 12Ā days after IPTG induction under light and aerobic conditions. b Relative intensity of intracellular butanoyl-CoA measurements in BUOHSE and DC7. c In-vitro specific activity of PduP in crude extract of BUOHSE and DC7. Asterisks indicate significant differences in the strains (**pāā¤ā0.01). The error bars indicate standard deviations obtained from three replicates. d Schematic of genetic modification in synthetic 1-butanol biosynthesis pathway of DC7 and DC11. e Schematic representation of 1-butanol biosynthesis pathway and TCA cycleBack to article page