3-aminopropanal + spermidine + H2O2 => spermine + O2 + H2O
3-aminopropanal + spermidine + h2o2 => spermine + o2 + h2o
3-aminopropanal + spermidine + H2O2 => spermine + O2 + H2O
3-aminopropanal + spermidine + h2o2 => spermine + o2 + h2o