2-amino-4-oxopteridine-6-carbaldehyde + hnu + O2 + H2O => 2-amino-4-oxopteridine-6-carboxylate + H2O2 + H(+)
2-amino-4-oxopteridine-6-carbaldehyde + hnu + o2 + h2o => 2-amino-4-oxopteridine-6-carboxylate + h2o2 + h(+)
2-amino-4-oxopteridine-6-carbaldehyde + hnu + O2 + H2O => 2-amino-4-oxopteridine-6-carboxylate + H2O2 + H(+)
2-amino-4-oxopteridine-6-carbaldehyde + hnu + o2 + h2o => 2-amino-4-oxopteridine-6-carboxylate + h2o2 + h(+)