Figure 6From: Hierarchical modularity of nested bow-ties in metabolic networksDistribution of the 12 precursors in the 12 modules of the E.coli metabolic network. The three major pathways – Embden-Meyerhof-Parnas (EMP), tricarboxylic acid (TCA) and pentose phosphate pathway (PPP) for the generation of the 12 precursors are outlined.Back to article page