Translations:Amino acid/71/en

Non-protein functions

Biosynthetic pathways for catecholamines and trace amines in the human brain

L-Phenylalanine

L-Tyrosine

L-DOPA

Epinephrine

Phenethylamine

p-Tyramine

Dopamine

Norepinephrine

N-Methylphenethylamine

N-Methyltyramine

p-Octopamine

Synephrine

3-Methoxytyramine

AADC

AADC

AADC

primary
pathway

PNMT

PNMT

PNMT

PNMT

AAAH

AAAH

brain
CYP2D6

minor
pathway

COMT

DBH

DBH

Catecholamines and trace amines are synthesized from phenylalanine and tyrosine in humans.

Main article: Amino acid neurotransmitter