Figure 3

Average number of TetA molecules for different number of administered Tc molecules. Initially, there is no TetA in the cell because there is no intracellular Tc. At time equal to 5 hours, a pulse of different Tc amounts is administered to each cell thereby inducing gene expression. Then, the amount of intracellular TetA increases. Increasing amount of administered Tc results in faster production of higher TetA concentration.