L-sepiapterin + hnu + 2 O2 + H2O = 2-amino-4-oxopteridine-6-carboxylate + acetaldehyde + 2 H2O2 + H(+)
l-sepiapterin + hnu + 2 o2 + h2o = 2-amino-4-oxopteridine-6-carboxylate + acetaldehyde + 2 h2o2 + h(+)
L-sepiapterin + hnu + 2 O2 + H2O = 2-amino-4-oxopteridine-6-carboxylate + acetaldehyde + 2 H2O2 + H(+)
l-sepiapterin + hnu + 2 o2 + h2o = 2-amino-4-oxopteridine-6-carboxylate + acetaldehyde + 2 h2o2 + h(+)