FIG 2.
Growth inhibition increases with cysteine concentration. Wild-type (DM9404) (A) and ridA (DM3480) (B) strains were grown at 37°C in minimal glucose medium with cysteine excluded were added to a final concentration of 0.1 mM, 0.25 mM, or 0.5 mM. Error bars representing the standard errors of the means (SEM) of three replicates are excluded, as the replicates deviated less than 5% from the average value.