nutrient

Tyrosine

An amino acid made from phenylalanine and used to make specialised molecules.

Educational draft · Human scientific and editorial review pending. About review status

Tyrosine is incorporated into proteins and supplies precursor material for catecholamine, thyroid-hormone and melanin pathways.

How it works

A precursor with several routes

Phenylalanine can be converted to tyrosine. Enzymes then direct tyrosine into separate pathways for catecholamines, thyroid hormones or melanin.

Related topics

Worth knowing

  • The body can make it from phenylalanine. Tyrosine is generally non-essential because phenylalanine can supply it, although the conversion depends on enzyme activity and physiological state.

A closer look

Its pathways are enzyme-directed

The same tyrosine pool can be used for protein synthesis or specialised products, depending on which enzymes are active.

References

Source-checked local draft.
Human editorial review pending.

  1. NIH National Library of Medicine (opens in new tab)Biochemistry, Essential Amino AcidsChecked 2026-09-05
  2. NIH National Library of Medicine (opens in new tab)Biochemistry, Protein CatabolismChecked 2026-09-05

Take it into the kitchen

Explore this nutrient in simple meals. Recipe pages show estimated amounts and missing data.

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