Figure 9.

Perturbation of translation rates. (a,b) X-dependent translation is blocked ($k_4=0$). mRNA (a) and protein (b) levels are plotted against time. Initial conditions given by each of the markers in Figure 7a. (c–f) Partial block of translation rates. M and P are plotted against time for larger (c) and smaller (d) translation rates. (e) Time-averaged levels of M and P (Equation (4)) are plotted against the parameter $k_4$. (f) The period of the oscillator is plotted against the parameter $k_4$. Equation (2) were solved numerically. Other parameter values as in Table 1.