Figure 2.

The genome-scale metabolic network of A. niger. Nodes are metabolites while links are reactions. The color of the nodes represents different functional categories. The size of nodes is proportional to the number of reactions from or to that node (metabolite) in the genome-wide network. (a) The general layout of the metabolic network. (b) A zoom-in of the dashed box in (a). For a detailed and clickable version, see Additional data files 5 and 6.

Sun et al. Genome Biology 2007 8:R182   doi:10.1186/gb-2007-8-9-r182
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