The model contains one compartment called "compartment". There are three species named S1, S2 and S3 and two parameters named k1 and k2. The model contains one reaction defined as:
Reaction | Rate |
S1 → S2 | compartment · k2 · S |
The model contains one rule:
Type | Variable | Formula |
Assignment | S3 | multiply(k1, S1) |
The model contains one functionDefinition defined as:
Id | Arguments | Formula |
multiply | x, y | x · y |
Note that in this case the initial value of the species S3 is not explicitly declared and must be calculated by the AssignmentRule.
The initial conditions are as follows:
Value | Units | |
Initial amount of S1 | 1 | mole |
Initial amount of S2 | 0.5 | mole |
Initial amount of S3 | undeclared | mole |
Value of parameter k1 | 1.5 | dimensionless |
Value of parameter k2 | 5 | second-1 |
Volume of compartment "compartment" | 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.