k1 NADH O2 k10 per3 NADrad k11 per2 O2 k12 k13f k13b O2 k14 Ar NADH k2 H2O2 per3 k3 coI ArH k4 coII ArH k5 NADrad O2 k6 super per3 k7 super super k8 coIII NADrad k9 NADrad NADrad