Figure 4.

Role of the polyamine modulon under various conditions. Twenty kinds of proteins encoded by polyamine modulon are shown in red and blue as indicated in the legend of Fig. 2. Proteins encoded by polyamine modulon are involved at logarithmic phase (A), at stationary phase (B), and under oxidative stress conditions (C). RpoS (σ³⁸) are indicated in both A and C. Proteins encoded by the polyamine modulon shown in red are involved in cell growth, and those in blue are involved in cell viability.