Note: This test is a copy of model 834, with the products and reactants reversed, and a negative kinetic law. This gives the same results, but during the simulation, the kinetic law actually goes negative (a requirement for reversibe reactions). The reaction listed below is therfore equivalent to the one in the file, but reversed from it.
The model contains one compartment called C. There are three species called S1, S2 and S3 and two parameters called kf and kr. The model contains one reaction defined as:
Reaction | Rate |
S1 ↔ S2 + S3 | (minus(multiply(kf, S1), kr · S2 · S3)) · C |
The reaction applies two functionDefinitions defined as:
Id | Arguments | Formula |
multiply | x, y | x · y |
minus | x, y | x − y |
The initial conditions are as follows:
Value | Units | |
Initial amount of S1 | 1.0 | mole |
Initial amount of S2 | 0.5 | mole |
Initial amount of S3 | 0 | mole |
Value of parameter kf | 2.5 | second-1 |
Value of parameter kr | 0.2 | litre mole-1 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.