PpgK is required for normal growth with glucose as sole carbon source.

<p>Growth of wt Mtb (A) and <i>ΔppgK</i> (B) in carbon defined media with 0.4% glycerol (squares), 0.4% glucose (circles) or no carbon (asterisks). Open circles depict growth of the complemented mutant in glucose containing medium. (C) Growth of wt and <i>ΔppgK</i> in response to increasing glucose concentration. Data represent two to three independent experiments.