Figure 1

A network representation of human metabolic pathways. Layout and network construction were performed using the Biolayout software [33]. Each node represents one of the pathways from Table 2, the links between the nodes were retrieved from the KEGG database diagrams. The full names of the pathways are listed in Table 2. (A) The complete network; (B) Universal pathways; (C) The eukaryotic-, metazoan- and vertebrate-specific pathways – universal pathways are omitted for clarity.