RealTime-PCR analysis of selected genes.

<p>Note:</p>#<p>Description and putative function of the selected genes are based upon the published <i>S. mutans</i> database.</p>*<p>, The levels of expression are presented as copy numbers of the respective transcripts per µg of total RNA.</p>@<p>, Fold-change is defined as level of expression in the Rex-deficient mutant TW239 relative to those of the wildtype UA159, with a – representing down-regulation.