begin name zatorskyc end name begin reactions R1 {1.0}$EXTERNAL = {1.0}x R3 {1.0}x = {1.0}$EXTERNAL R4 {1.0}$EXTERNAL = {1.0}y0 R5 {1.0}y0 = {1.0}y R6 {1.0}y = {1.0}$EXTERNAL end reactions begin rate equations R1 = compartment*psi*Theta*x[t] R3 = alphaxy*compartment*x[t]*y[t] R4 = betay*compartment*psi*x[t] R5 = alpha0*compartment*y0[t] R6 = alphay*compartment*y[t] end rate equations begin parameters Theta = 2.0 alpha0 = 1.1 alphax = 0.0 alphaxy = 3.7 alphay = 0.9 betay = 1.5 psi = 1.0 compartment = 1.0 end parameters begin initial conditions x[0] = xi y[0] = yi y0[0] = y0i end initial conditions begin initial values xi = 0.02 yi = 0.2 y0i = 0.5 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 y http://identifiers.org/uniprot/Q00987 end species annotations begin units end units