Strain engineering for de novo synthesis of sedoheptulose from glucose
We propose a strain engineering approach for synthesizing sedoheptulose using glucose as sole feedstock. The gene pfkA encoding 6-phosphofructokinase in Corynebacterium glutamicum was inactivated to direct the carbon flux towards pentose phosphate pathway in the cellular metabolic network. This genetic modification successfully enabled the synthesis of sedoheptulose from glucose. Additionally, we identified key enzymes responsible for product formation through transcriptome analysis, and their corresponding genes were overexpressed, resulting in a further 20% increase in sedoheptulose production. Overall design: mRNA profiles of cells of  Corynebacterium glutamicum Wildtpye and  ?pfkA mutant were analysized.