Table 3

Extracellular pyruvate levels in growing E. coli cultures correlate with yhjX induction

Medium or C sourcePyruvate concn (μM)
Before yhjX inductionAfter 30 min of yhjX inductionAfter 60 min of yhjX induction
LB (tryptone/yeast extract)2442017
M9 + gluconate21410553
M9 + glucuronate1855218
M9 + glucosea201817
  • a As no yhjX induction was detectable, samples were analyzed at the equivalent growth phases. Data were obtained from at least three independent experiments, and average values are presented; the standard deviation was less than 20%.