Phenylalanine is a crystalline, soluble amino acid that is an essential
amino acid found in most protein-rich foods. It is one of the
twenty common amino acids used by terrestrial
living things to form proteins, has the
chemical formula HO2CCH(NH2)CH2C6H5.
The hereditary condition known as phenylketonuria
(PKU) stems from an inability to metabolize phenylalanine normally.
| Phenylalanine. Picture