Fig. 4.

Hypothetical pathway of fructose oxidation, uptake on cytoplasmic membrane, and intracellular metabolism in P. putida KT2440. Differential expression analysis of the proteins involved in periplasmic and cytoplasmic fructose metabolism, of samples taken at peak current (t₁) and 414 h after inoculation (t₂) during KT2440’s BES cultivation is included. Red colours indicate upregulation, blue indicate down regulation, black indicate insignificant change, grey indicate FC not determined; F1P, fructose 1‐phosphate; M6P, mannose 6‐phosphate; F16P, fructose‐1,6‐bisphosphate; F6P, fructose 6‐phosphate.