Figure 5. One-parameter bifurcation diagrams for a double-negative feedback loop with multisite phosphorylation by an ordered (A) or disordered (B) distributive mechanism.
The steady state level of kinase (K) is plotted against the phosphatase activity (h) for different thresholds (q). Parameter values: κs = 0.02, κd = 0.02, κa = 0.98, XT = 1, N = 10.