The model contains one compartment called C. There are four species called S1, S2, S3 and S4 and three parameters called k1, k2 and p1. The model contains one reaction defined as:
Reaction | Rate |
S1 → S2 | k1 · S1 · C |
The model contains two rules:
Type | Variable | Formula |
Rate | S3 | k2 · S4 |
Rate | S4 | −k2 · S4 |
The model contains one initialAssignment:
Variable | Formula |
S1 | p10.5 |
Note: InitialAssignments override any declared initial values. In this case the value of species S1 calculated by the initialAssignment is consisent with the value declared by the model definition.
The initial conditions are as follows:
Value | Units | |
Initial amount of S1 | 1.5 | mole |
Initial amount of S2 | 2.0 | mole |
Initial amount of S3 | 1.5 | mole |
Initial amount of S4 | 4 | mole |
Value of parameter k1 | 0.75 | second-1 |
Value of parameter k2 | 0.25 | second-1 |
Value of parameter p | 0.75 | mole litre-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.
Note: The test data for this model was generated from an analytical solution of the system of equations.