FIG. 5.

k-means clusters containing NtrC/Nac-regulated genes. Clusters were obtained by analysis of data from adapted batch cultures of NCM3722 (18 genome prints) (A and B) or cultures subjected to nutrient shifts (16 genome prints) (C and D). The experiments are indicated on the x axis, and the log ratios of expression are indicated on the y axis. The green lines show data for individual genes, and the pink and black lines show averages. The blue lines in panel B show data for eut genes (see text). In panels A and B, the log ratios are values for a comparison of nutrient-limiting conditions to excess conditions. In panels C and D, the log ratios are values for a comparison of data obtained after the shift with data obtained before the shift. The numbers on the x axis indicate the times (in minutes) after the shift at which the samples were taken.