Hyperphenylalaninemia due to impaired dihydrobiopterin biosynthesis.
D001545:Benserazide / Q000627:therapeutic use; D001708:Biopterins / Q000031:analogs & derivatives / Q000172:deficiency / Q000378:metabolism*; D006801:Humans; D007223:Infant; D008297:Male; D010661:Phenylketonurias / Q000188:drug therapy / Q000209:etiology*; D011621:Pteridines / Q000378:metabolism*
D011621:Pteridines; D001708:Biopterins; D001545:Benserazide