Fig. 3
From: A mixed-integer linear programming approach to the reduction of genome-scale metabolic networks
The two illustrations show the distribution of the reactions which are not present in all subnetworks. In Fig. 3 a each reaction (x-axis) has a bar. The bar indicates in how many subnetworks the reaction can be found. For example, reaction CCP can be found in every subnetwork except 1 (there are in total 16 subnetworks) and reaction CAT can be found in only one subnetwork. Fig. 3 b illustrates where the reactions are found. Again the x-axis corresponds to the reactions. Thus a dot at (1,CCP) means that CCP appears in subnetwork 1. CCP can be found in every subnetwork except in the second one, whereas CAT can be found only in the second one