ID 1.5.3.14 DE polyamine oxidase (propane-1,3-diamine-forming). AN maize PAO. AN MPAO. CA H2O + O2 + spermidine = 4-aminobutanal + H2O2 + propane-1,3-diamine. CC -!- As the products of the reaction cannot be converted directly to other CC polyamines, this class of polyamine oxidases is considered to be CC involved in the terminal catabolism of polyamines. CC -!- Catalyzes less efficiently the oxidation of N(1)-acetylspermine and CC spermine. CC -!- Differs in specificity from EC 1.5.3.13, EC 1.5.3.15, EC 1.5.3.16 and CC EC 1.5.3.17. CC -!- Formerly EC 1.5.3.11, EC 1.5.3.n6, EC 1.5.3.n7, EC 1.5.3.n8 and CC EC 1.5.3.n9. DR O64411, PAO1_MAIZE ; //