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<?xml version="1.0" encoding="UTF-8"?>
<sbml xmlns="http://www.sbml.org/sbml/level3/version1/core" level="3" version="1">
<model volumeUnits="litre" substanceUnits="mole" timeUnits="second" extentUnits="mole">
<listOfUnitDefinitions>
<unitDefinition id="per_second">
<listOfUnits>
<unit kind="second" exponent="-1" scale="0" multiplier="1"/>
</listOfUnits>
</unitDefinition>
</listOfUnitDefinitions>
<listOfCompartments>
<compartment id="cell" size="1" spatialDimensions="3" constant="true"/>
</listOfCompartments>
<listOfSpecies>
<species id="X0" compartment="cell" initialConcentration="1" constant="false"
hasOnlySubstanceUnits="false" boundaryCondition="false"/>
<species id="X1" compartment="cell" initialConcentration="0" constant="false"
hasOnlySubstanceUnits="false" boundaryCondition="false"/>
<species id="T" compartment="cell" initialConcentration="0" constant="false"
hasOnlySubstanceUnits="false" boundaryCondition="false"/>
<species id="S1" compartment="cell" initialConcentration="0" constant="false"
hasOnlySubstanceUnits="false" boundaryCondition="false"/>
<species id="S2" compartment="cell" initialConcentration="0" constant="false"
hasOnlySubstanceUnits="false" boundaryCondition="false"/>
</listOfSpecies>
<listOfParameters>
<parameter id="Keq" value="2.5" units="dimensionless" constant="true"/>
</listOfParameters>
<listOfRules>
<assignmentRule variable="S1">
<math xmlns="http://www.w3.org/1998/Math/MathML"
xmlns:sbml="http://www.sbml.org/sbml/level3/version1/core">
<apply>
<divide/>
<ci> T </ci>
<apply>
<plus/>
<cn sbml:units="dimensionless"> 1 </cn>
<ci> Keq </ci>
</apply>
</apply>
</math>
</assignmentRule>
<assignmentRule variable="S2">
<math xmlns="http://www.w3.org/1998/Math/MathML">
<apply>
<times/>
<ci> Keq </ci>
<ci> S1 </ci>
</apply>
</math>
</assignmentRule>
</listOfRules>
<listOfReactions>
<reaction id="in" reversible="false" fast="false">
<listOfReactants>
<speciesReference species="X0" stoichiometry="1" constant="true"/>
</listOfReactants>
<listOfProducts>
<speciesReference species="T" stoichiometry="1" constant="true"/>
</listOfProducts>
<kineticLaw>
<math xmlns="http://www.w3.org/1998/Math/MathML">
<apply>
<times/>
<ci> k1 </ci>
<ci> X0 </ci>
<ci> cell </ci>
</apply>
</math>
<listOfLocalParameters>
<localParameter id="k1" value="0.1" units="per_second"/>
</listOfLocalParameters>
</kineticLaw>
</reaction>
<reaction id="out" reversible="false" fast="false">
<listOfReactants>
<speciesReference species="T" stoichiometry="1" constant="true"/>
</listOfReactants>
<listOfProducts>
<speciesReference species="X1" stoichiometry="1" constant="true"/>
</listOfProducts>
<listOfModifiers>
<modifierSpeciesReference species="S2"/>
</listOfModifiers>
<kineticLaw>
<math xmlns="http://www.w3.org/1998/Math/MathML">
<apply>
<times/>
<ci> k2 </ci>
<ci> S2 </ci>
<ci> cell </ci>
</apply>
</math>
<listOfLocalParameters>
<localParameter id="k2" value="0.15" units="per_second"/>
</listOfLocalParameters>
</kineticLaw>
</reaction>
</listOfReactions>
</model>
</sbml>
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