polyamine oxidase activity N(1)-acetylpolyamine oxidase activity https://github.com/geneontology/go-ontology/issues/24701 https://github.com/geneontology/go-ontology/issues/25837 https://github.com/geneontology/go-ontology/issues/28070 https://github.com/geneontology/go-ontology/issues/28526 https://github.com/geneontology/go-ontology/issues/31136 https://github.com/geneontology/go-ontology/issues/31587 Reactome:R-HSA-141351 MetaCyc:RXN-12091 RHEA:25812 N1-acetylspermidine:oxygen oxidoreductase (3-acetamidopropanal-forming) activity GO:0052903 N1-acetylspermine:oxygen oxidoreductase (3-acetamidopropanal-forming) activity Reactome:R-HSA-141348 KEGG_REACTION:R03899 EC:1.5.3.13 RHEA:25868 RHEA:25800 MetaCyc:RXN-9940 molecular_function Catalysis of the reaction: N(1)-acetylspermine + O2 + H2O = 3-acetamidopropanal + spermidine + H2O2. Also converts N(1)-acetylspermidine to putrescine, and N(1),N(12)-diacetylspermine to N(1)-acetylspermidine. MetaCyc:RXN-10460