Figure 3From: From qualitative data to quantitative models: analysis of the phage shock protein stress response in Escherichia coliA Petri net model of the Psp response system. The starting Petri net model, a graphical representation of reactions (1). The names of places and the model are introduced in the text. Yellow, red and green coloured places correspond to P-invariants (see "Model validation and fitting"), while those coloured in blue correspond to unbounded places.Back to article page