Expected relation between predictions and measurement for simple repressor titration.

<p>Figure (A) shows three hypothetical promoters for which the predictions of the promoter design are either numerically correct (), underestimated (▾) or overestimated (). The three smaller figures in (B) show the expected result as repressors are added in a simple repression architecture. The predicted theory line and the data points differ on average by the same percent as they do at .