FIG 5.

The metabolic components required for glycine to suppress the growth defect of a ridA strain are based on the source of metabolic stress. Growth of the indicated strains was assessed in minimal glucose glycine (0.67 mM) media containing 5 mM serine (A) or 0.25 mM cysteine (B). The averages and standard deviations for three independent cultures of wild-type (Wt; DM14828), ridA (DM14829), ridA gcvB (DM14837), and ridA gcvP (DM14839) strains are plotted. Growth of the gcvB (DM14836) and gcvP (DM14838) single-mutant strains was identical to that of the wild type (data not shown).