Phenylpyruvic acid ↔ Enol-phenylpyruvate
Oxygen + Phenylpyruvic acid → Carbon dioxide + ortho-Hydroxyphenylacetic acid
NAD + Phenylacetaldehyde + Water ↔ Hydrogen Ion + NADH + Phenylacetic acid
Oxygen + Phenylethylamine + Water ↔ Ammonia + Hydrogen peroxide + Phenylacetaldehyde
L-Phenylalanine → Carbon dioxide + Phenylethylamine
L-Phenylalanine + Oxygen + Water → Ammonia + Hydrogen peroxide + Phenylpyruvic acid
L-Phenylalanine + Oxoglutaric acid ↔ L-Glutamic acid + Phenylpyruvic acid
L-Phenylalanine + Oxygen + Tetrahydrobiopterin → 4a-Carbinolamine tetrahydrobiopterin + L-Tyrosine + Water