Autosomal Recessive (AR) Protein Protein PAH T yrosinase Phe Dopa Melanin Phenylypruvic acid Phenyllactic Phenylacetic acid acid BenzophenonePAH Phenyllactic acid Benzophenone Autosomal Recessive (AR) Tyrosinase Phe Dopa Melanin Protein Tyr Protein Phenylypruvic acid Phenylacetic acid