Biochemistry in Tables, Schemes, and Graphs - S.D. Zhamsaranova 2009

Amino Acid Metabolism
Specific Features of Phenylalanine and Tyrosine Metabolism in Various Tissues

Phenylalanine is an essential amino acid, as the benzene ring cannot be synthesized in animal Cells.

Tyrosine is a conditionally essential amino acid. It is synthesized exclusively from phenylalanine. Approximately 90% of phenylalanine is converted into tyrosine.

The Catabolism of Phe and Tyr takes place in the Liver.

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Last update: 06/08/2026

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