Fig. 1From: Robust structure measures of metabolic networks that predict prokaryotic optimal growth temperatureMetabolic networks complexity. a Metabolic network of archaea Methanopyrus kandleri; b Zoom in the network of archaea Methanopyrus kandleri: metabolites without predecessors are shown in yellow, and metabolites without successors are shown in blue. The code C followed by 5 digits are compound codes in the KEGG databaseBack to article page