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Fig. 2 | Biotechnology for Biofuels

Fig. 2

From: Examining Escherichia coli glycolytic pathways, catabolite repression, and metabolite channeling using Δpfk mutants

Fig. 2

Glucose and xylose coutilization (n = 2). Profile of growth (open square), acetate production (star), and consumption of glucose (open circle) and xylose (open triangle) in mutant strains: apfkA mutant (JW3887) and b WH04 grown with glucose and xylose. OD600 of cultures grown solely with glucose are also shown (closed circles). c 13C isotopic labeling tracing in cultivations fed 10 g/L of 13C6-glucose and 6 g/L of unlabeled xylose. Xylose contribution (fraction of 12C) in proteinogenic amino acids is graphed for the three strains (2 % isotopic measurement errors were applied)

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