begin name
tyson10
end name

begin reactions
r1 {1.0}$EXTERNAL = {1.0}X
r2 {1.0}X = {1.0}$EXTERNAL
r3 {1.0}$EXTERNAL = {1.0}Yp
r4 {1.0}Yp = {1.0}$EXTERNAL
r5 {1.0}$EXTERNAL = {1.0}Rp
r6 {1.0}Rp = {1.0}$EXTERNAL
end reactions

begin rate equations
r1 = env*(k0 + k1*S)
r2 = env*(k2 + k2prime*Rp[t])*X[t]
r3 = (env*k3*X[t]*(Yt - Yp[t]))/(Km3 + Yt - Yp[t])
r4 = (env*k4*Yp[t])/(Km4 + Yp[t])
r5 = (env*k5*(Rt - Rp[t])*Yp[t])/(Km5 + Rt - Rp[t])
r6 = (env*k6*Rp[t])/(Km6 + Rp[t])
end rate equations

begin parameters
Km3 = 0.01
Km4 = 0.01
Km5 = 0.01
Km6 = 0.01
Rt = 1.0
Yt = 1.0
k0 = 0.0
k1 = 1.0
k2 = 0.01
k2prime = 10.0
k3 = 0.1
k4 = 0.2
k5 = 0.1
k6 = 0.05
S = 0.0
env = 1.0
end parameters

begin initial conditions
Rp[0] = Rpi
X[0] = Xi
Yp[0] = Ypi
end initial conditions

begin initial values
Rpi = 0.0
Xi = 0.0
Ypi = 0.0
end initial values

begin assignment rules
R := Rt - Rp[t]
Y := Yt - Yp[t]
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