begin parameters Stot 100 n_k0 0 kp0 3 ku1 14 n_k1 1 kp1 15 ku2 98 end parameters begin molecule types A(s~u~p) end molecule types begin seed species %init: A(s~u) Stot end seed species begin reaction rules A(s~u) -> A(s~p) kp0/n_k1 A(s~p) -> A(s~u) ku1/n_k1 end reaction rules generate_network({overwrite=>1});