begin name
tan1
end name

begin reactions
reaction1 {1.0}$EXTERNAL = {1.0}c
reaction2 {1.0}$EXTERNAL = {1.0}c
reaction3 {1.0}c = {1.0}$EXTERNAL
reaction4 {1.0}c = {1.0}$EXTERNAL
end reactions

begin rate equations
reaction1 = reaction1alpha
reaction2 = c[t]/(reaction2kappa + c[t])
reaction3 = reaction3kd*c[t]
reaction4 = (reaction4phi*c[t])/(reaction4delta + reaction4gamma*c[t])
end rate equations

begin parameters
reaction1alpha = 0.001
reaction3kd = 1.0
reaction2kappa = 0.5
reaction4phi = "5e-06"
reaction4delta = "1e-05"
reaction4gamma = "1e-05"
cell = 1.0
end parameters

begin initial conditions
c[0] = ci
end initial conditions

begin initial values
ci = 0.0
end initial values

begin assignment rules
end assignment rules

begin function definitions
end function definitions

begin events
end events

begin process annotations
end process annotations

begin species annotations
end species annotations

begin units
end units