Fig. 4From: Systems analysis of ethanol production in the genetically engineered cyanobacterium Synechococcus sp. PCC 7002Scheme of glycolysis and major carbohydrate metabolism in relation to ethanol production from pyruvate in Synechococcus 7002. Metabolite data represent internal standard-corrected normalized responses, i.e. pool sizes in arbitrary units per OD −1750  mL−1 of sample, from ethanol producer and WT (left) and differential profiles (right), i.e. log2-transformed ratios of producer over WT at each time point (Additional file 3)Back to article page