begin name praestgaard1 end name begin reactions v1 {1.0}e + {1.0}s = {1.0}es v2 {1.0}es = {1.0}e + {1.0}s v3 {1.0}es = {1.0}ep2 + {1.0}p1 v4 {1.0}ep2 = {1.0}e + {1.0}p2 end reactions begin rate equations v1 = k1f*e[t]*s[t] v2 = k1r*es[t] v3 = k2*es[t] v4 = k3*ep2[t] end rate equations begin parameters k1f = 0.002 k1r = 0.002 k2 = 0.3 k3 = 0.002 defaultcompartment = 1.0 end parameters begin initial conditions e[0] = ei ep2[0] = ep2i es[0] = esi p1[0] = p1i p2[0] = p2i s[0] = si end initial conditions begin initial values ei = 0.05 ep2i = 0.0 esi = 0.0 p1i = 0.0 p2i = 0.0 si = 20.0 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