The model contains one compartment called "compartment". There are three species named S1, S2 and S3 and one parameter named k. The model contains two reactions defined as:
Reaction | Rate |
S1 → S2 | k · S1 · compartmen |
S2 → S3 | multiply(S1,S2) · compartment, |
Reaction S2 → S3 defines one local parameter S1. This parameter shadows the species S1 and thus in reaction S2 → S3 the value of the local parameter S1 must be used.
The model contains one functionDefinition defined as:
Id | Arguments | Formula |
multiply | x, y | x · y |
The initial conditions are as follows:
Value | Units | |
Initial amount of S1 | 3.0 × 10−3 | mole |
Initial amount of S2 | 0 | mole |
Initial amount of S3 | 0 | mole |
Value of parameter k | 2 | second-1 |
Value of local parameter S1 | 1 | second-1 |
Volume of compartment "compartment" | 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.