The model contains one compartment called C. There are three species called S1, S2 and S3 and two parameters called k1 and k2. The model contains one reaction defined as:
Reaction | Rate |
S1 → S2 | C · k2 · S1 |
The model contains one rule which assigns value to species S3:
Type | Variable | Formula |
Assignment | S3 | k1 · S2 |
In this case the initial value declared for species S3 is inconsistent with the value calculated by the assignmentRule. Note that since this assignmentRule must always remain true, it should be considered during simulation.
The model contains one event that assigns a value to species S2:
Trigger | Delay | Assignments | |
Event1 | S1 < 0.1 | 0.5 | S2 = 1 |
The initial conditions are as follows:
Value | Units | |
Initial amount of S1 | 1 | mole |
Initial amount of S2 | 0 | mole |
Initial amount of S3 | 3.75 | mole |
Value of parameter k1 | 0.75 | dimensionless |
Value of parameter k2 | 5 | second-1 |
Volume of compartment C | 1 | litre |
The species values are given as amounts of substance to make it easier to use the model in a discrete stochastic simulator, but (as per usual SBML principles) their symbols represent their values in concentration units where they appear in expressions.