Table 1.
The numbers of places, transitions, and TIs in the modules and in the reduced network.
| PN size | Sucrose module | Citrate module | Reduced PN |
|---|---|---|---|
| Places | 69 | 72 | 60 |
| Transitions | 132 | 125 | 131 |
| TI type | |||
| All | 4,602 | 3,214 | 27,646 |
| Trivial | 31 | 25 | 22 |
| IN + OUT | 4,473 | 3,140 | 26,095 |
| IN | 18 | 41 | 1,298 |
| OUT | 63 | 0 | 132 |
| Cyclic | 17 | 8 | 99 |
All networks were CTI. We grouped the TIs according to the type of interface to the environment. INOUT TIs contained input and output transitions, IN TIs only input transitions, and OUT TIs only output transitions. Cyclic TIs contained neither IN nor OUT TIs. Trivial invariants were reversible reactions which were split into a forward and a backward transition.