L-erythro-biopterin + hnu + O2 => 2-amino-4-oxopteridine-6-carbaldehyde + acetaldehyde + H2O2
l-erythro-biopterin + hnu + o2 => 2-amino-4-oxopteridine-6-carbaldehyde + acetaldehyde + h2o2
L-erythro-biopterin + hnu + O2 => 2-amino-4-oxopteridine-6-carbaldehyde + acetaldehyde + H2O2
l-erythro-biopterin + hnu + o2 => 2-amino-4-oxopteridine-6-carbaldehyde + acetaldehyde + h2o2