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EC 1.5.3.17 Details
EC number
1.5.3.17
Accepted name
non-specific polyamine oxidase
Reaction
(1) spermine + O2 + H2O = spermidine + 3-aminopropanal + H2O2;;(2) spermidine + O2 + H2O = putrescine + 3-aminopropanal + H2O2;;(3) N1-acetylspermine + O2 + H2O = spermidine + 3-acetamidopropanal + H2O2;;(4) N1-acetylspermidine + O2 + H2O = putrescine + 3-acetamidopropanal + H2O2
Other name(s)
polyamine oxidase (ambiguous), Fms1, AtPAO3
Systematic name
polyamine:oxygen oxidoreductase (3-aminopropanal or 3-acetamidopropanal-forming)
Comment
A flavoprotein (FAD). The non-specific polyamine oxidases may differ from each other considerably. The enzyme from Saccharomyces cerevisiae shows a rather broad specificity and also oxidizes N8-acetylspermidine [3]. The enzyme from Ascaris suum shows high activity with spermine and spermidine, but also oxidizes norspermine [2]. The enzyme from Arabidopsis thaliana shows high activity with spermidine, but also oxidizes other polyamines [1]. The specific polyamine oxidases are classified as EC 1.5.3.13 (N1-acetylpolyamine oxidase), EC 1.5.3.14 (polyamine oxidase (propane-1,3-diamine-forming)), EC 1.5.3.15 (N8-acetylspermidine oxidase (propane-1,3-diamine-forming)) and EC 1.5.3.16 (spermine oxidase).
History
created 2009
EC Tree
2.5.1.12 created 1972, deleted 1976
2.5.1.13 created 1972, deleted 1976
2.5.1.14 created 1972, deleted 1976
2.5.1.37 created 1989, deleted 2004
2.5.1.40 created 1992, deleted 1999