The model contains one compartment called "compartment". There are four species named S1, S2, S3 and S4 and three parameters named k1, k2 and k3. Both species S3 and S4 are labeled as an SBML boundary species. The model contains two reactions defined as:
Reaction | Rate |
S1 + S2 → S3 | k1 · S1 · S2 · compartment |
S3 → S1 + S2 | k2 · S3 · compartment |
The model contains one rule:
Type | Variable | Formula |
Assignment | S4 | k3 · S2 |
The initial conditions are as follows:
Value | Units | |
Initial amount of S1 | 1 × 10−5 | mole |
Initial amount of S2 | 1.5 × 10−5 | mole |
Initial amount of S3 | 1 × 10−5 | mole |
Initial amount of S4 | 2.25 × 10−5 | mole |
Value of parameter k1 | 1.5 × 105 | litre mole-1 second-1 |
Value of parameter k2 | 50 | second-1 |
Value of parameter k3 | 1.5 | dimensionless |
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.