Figure 4
From: Rational design of modular circuits for gene transcription: A test of the bottom-up approach

Dose-response curves for gene circuits with different operator sequences on the Reporter and the Repressor plasmids. A continuous line is used for the simulated dose-response curves in presence of a residual affinity for the operator sites by induced LacI molecules, while a dotted line is used for the simulated dose-response curves when this residual affinity is turned off. All the measurements were repeated at least five times.