4-aminobutanal + propane-1,3-diamine + H2O2 => spermidine + O2 + H2O
4-aminobutanal + propane-1,3-diamine + h2o2 => spermidine + o2 + h2o
4-aminobutanal + propane-1,3-diamine + H2O2 => spermidine + O2 + H2O
4-aminobutanal + propane-1,3-diamine + h2o2 => spermidine + o2 + h2o