Figure 5From: Stochastic simulations of the tetracycline operonAverage number of intracellular Tc molecules for different number of administered Tc molecules. Originally, there is no intracellular Tc. At time equal to 5 hours, a pulse of several Tc amounts is administered to each cell thereby inducing gene expression. Then, the amount of free (unbound) intracellular Tc increases and quickly decreases since it binds to TetR2 and is removed by TetA.Back to article page