The model contains one compartment called C. There are two species called S1 and S2 and two parameters called k1 and k2. The model contains one reaction defined as:

Reaction Rate
S1 → S2 C · k1 · S1

The model contains one initialAssignment:

Variable Formula
C division(k2, 50)

The initialAssignment uses a functionDefinition defined as:

Id Arguments Formula
division x, y xy

Note: SBML's InitialAssignment construct override any declared initial values. In this case the initial value declared for compartment C is consistent with the value returned by the InitialAssignment.

The initial conditions are as follows:

Value Units
Initial amount of S1 1 mole
Initial amount of S2 1.5 mole
Value of parameter k1 0.5 second-1
Value of parameter k2 50 litre
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) they must be treated as concentrations where they appear in expressions.

Note: The test data for this model was generated from an analytical solution of the system of equations.

Note: The test data for this model was generated from an analytical solution of the system of equations.