Figure 5. Summary of the differential expressed (DE) genes in S. suis SC-19 and ΔrelA response to glucose starvation (growth in 0.2% glucose vs 1% glucose).

(a) Venn diagrams show the up- (left) and down-regulated (right) genes. (b) The DE genes are classified into 19 functional categories. E, Amino acid transport and metabolism; G, Carbohydrate transport and metabolism; D, Cell cycle control, mitosis and meiosis; M, Cell wall/membrane biogenesis; H, Coenzyme transport and metabolism; V, Defense mechanisms; C, Energy production and conversion; P, Inorganic ion transport and metabolism; U, Intracellular trafficking and secretion; I, Lipid transport and metabolism; F, Nucleotide transport and metabolism; O, Posttranslational modification, protein turnover, chaperones; L, Replication, recombination and repair; T, Signal transduction mechanisms; Q, Secondary metabolites biosynthesis, transport and catabolism; K, Transcription; J, Translation; R, General function prediction only.