Figure 6From: Unraveling the evolutionary history of the phosphoryl-transfer chain of the phosphoenolpyruvate:phosphotransferase system through phylogenetic analyses and genome contextSchematic representation of selected clusters containing genes encoding FPr and related fructose class PTS proteins. Colors indicate homologous genes or domains. Dashed rectangles indicate possibly non-functional homologous domains (additional details are shown in Fig. S8, Additional file 2).Back to article page