Fig. 4.

The bifurcation diagram for T_R when $\text{totalNFkB}=0.15\mathrm{\mu }\mathrm{M}$: there are three HB-points at $T_R=0.002$, 0.01 and 0.366, respectively. Sustained oscillations occur for values of T_R in either of the intervals (0.002, 0.01) and (0.366, 1]. The right panel shows the period of these oscillations.