Non-specific polyamine oxidase

Non-specific polyamine oxidase (, polyamine oxidase, Fms1, AtPAO3) is an enzyme with systematic name polyamine:oxygen oxidoreductase (3-aminopropanal or 3-acetamidopropanal-forming). This enzyme catalyses the following chemical reaction


 * (1) spermine + O2 + H2O $$\rightleftharpoons$$ spermidine + 3-aminopropanal + H2O2
 * (2) spermidine + O2 + H2O $$\rightleftharpoons$$ putrescine + 3-aminopropanal + H2O2
 * (3) N1-acetylspermine + O2 + H2O $$\rightleftharpoons$$ spermidine + 3-acetamidopropanal + H2O2
 * (4) N1-acetylspermidine + O2 + H2O $$\rightleftharpoons$$ putrescine + 3-acetamidopropanal + H2O2

This enzyme is flavoprotein (FAD).