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Information on EC - N1-acetylpolyamine oxidase

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EC Tree
     1 Oxidoreductases
         1.5 Acting on the CH-NH group of donors
             1.5.3 With oxygen as acceptor
       N1-acetylpolyamine oxidase
IUBMB Comments
The enzyme also catalyses the reaction: N1,N12-diacetylspermine + O2 + H2O = N1-acetylspermidine + 3-acetamamidopropanal + H2O2 . No or very weak activity with spermine, or spermidine in absence of aldehydes. In presence of aldehydes the enzyme catalyses the reactions: 1. spermine + O2 + H2O = spermidine + 3-aminopropanal + H2O2, and with weak efficiency 2. spermidine + O2 + H2O = putrescine + 3-aminopropanal + H2O2 . A flavoprotein (FAD). This enzyme, encoded by the PAOX gene, is found in mammalian peroxisomes and oxidizes N1-acetylated polyamines at the exo (three-carbon) side of the secondary amine, forming 3-acetamamidopropanal. Since the products of the reactions are deacetylated polyamines, this process is known as polyamine back-conversion. Differs in specificity from EC [polyamine oxidase (propane-1,3-diamine-forming)], EC [N8-acetylspermidine oxidase (propane-1,3-diamine-forming)], EC (spermine oxidase) and EC (non-specific polyamine oxidase).
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Word Map
The enzyme appears in viruses and cellular organisms
polyamine oxidase, paoh1, n1-acetylpolyamine oxidase, more
N1-acetylspermidine + O2 + H2O = putrescine + 3-acetamidopropanal + H2O2
show the reaction diagram
N1-acetylspermine + O2 + H2O = spermidine + 3-acetamidopropanal + H2O2
show the reaction diagram