Figure 2

The result of DNA chip analysis for shock-related proteins. A) Heat shock proteins. B) Chaperones. C) Osmotic shock proteins. D) Proteins resistant to oxidative stress. Genes coding catalase (katA, SCO0379; catB, SCO0666), putative gas vesicle synthesis protein (gvpA2, SCO0650; gvpF2, SCO0651; gvpG2, SCO0652; gvpJ2, SCO0655; gvpL2, SCO0656; gvpS2, SCO0657; gvpO, SCO6499; gvpG, SCO6502; gvpL, SCO6506; gvpS, SCO6507; gvpK, SCO6508;), putative thioredoxin (SCO1084; trxA4, SCO5419), ATP-dependent protease ATP-binding subunit (clpB, SCO3661), molecular chaperone (dnaJ, SCO3669), heat shock protein (grpE, SCO3670; dnaK, SCO3671), chaperonin 2 (groEL2, SCO4296), putative glutathione peroxidase (SCO4444), 10 kD chaperonin cpn10 (groES, SCO4761), 60 kD chaperonin cpn60 (groEL1, SCO4762), superoxide dismutase (sodN, SCO5254), putative DNA-binding protein (SCO6439), putative thioredoxin reductase (SCO7298), putative chaperone (SCO7523) were upregulated with pH shock, while genes coding thioredoxin (trxA3, SCO0885), superoxide dismutase (sodF2, SCO0999), heat-inducible transcriptional repressor HrcA (SCO2555), molecular chaperone (sugE, SCO2898), putative GroES-family molecular chaperone (SCO2899), putative heat shock protein (hspR, SCO3668; htpG, SCO7516), thioredoxin reductase (NADPH) (trxB, SCO3890), conserved hypothetical protein (SCO5917), putative gas vesicle synthesis protein (gvpA, SCO6500; gvpF, SCO6501) were downregulated.