FIGURE 3: DadY fails to complement a S. enterica ridA mutant. Growth of a S. enterica ridA mutant harboring the control pCV1 vector (circles), pDM1636, encoding RidA from S. enterica (squares), or pDM1580, encoding DadY from P. aeruginosa (triangles) was monitored in minimal glucose (11 mM) medium without (closed symbols) or with (open symbols) 5 mM L-serine. L-arabinose (0.2%) was present in all media to induce expression of the plasmid-borne gene. Error bars represent standard deviation between three independent biological replicates.