Degradation of 2-propanol and accumulation of metabolites in resting-cell experiments of A. tertiaricarbonis wild-type strain L108 (A) and mdpJ knockout strain L108 (ΔmdpJ) K24 (B). In the latter case, 1,2-propanediol was below the detection limit (10 μM) throughout the experiment. The sum of 2-propanol and metabolites represents the percentage of all analyzed 2-propanol-derived compounds (2-propanol, acetone, and 1,2-propanediol) relative to the initial substrate concentration.