Figure 1. A depiction of the central metabolism of Synechocystis. Native and non-native experimentally overproduced metabolites in Synechocystis are represented by black and gray squares, respectively and the metabolites analyzed in this study are indicated by red lines. The carbon partitioning (in %) to sugar, lipids and terpenoid biosynthesis together with the predicted carbon flux distribution (normalized to the CO₂ uptake rate) -under autotrophic conditions is also shown. The non-native metabolites are 1-butanol (BUT), lactate (LAC), isobutyraldehyde (IBTAL). The abbreviations for the native metabolites are given in Nogales et al.²²