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Tyrosine
3-monooxygenase
Aromatic-L-
amino-acid
decarboxylase
Dopamine
beta-hydroxylase
Phenylethanolamine
N-
methyltransferase
Epinephrine
Epinephrine
Epinephrine
L-Tyrosine
Sapropterin
O
2
L-Dopa
Dihydrobiopterin
H
2
O
Dopamine
CO
2
Ascorbic acid
O
2
Norepinephrine
Dehydroascorbic
acid
H
2
O
S-
Adenosylmethionine
S-
Adenosylhomocysteine
Fe2+
Pyridoxal
5'-phosphate
Sympathetic
Nervous System
Parasympathetic
Nervous System
Pyrroloquinoline
quinone
Copper
Adrenal Medulla Cell
Kidney
Adrenal Medulla
Activation
Inhibition
Nervous System
Bloodstream
TH
DDC
DBH
PNMT
Epinephrine
Epinephrine
Epinephrine
L-Tyrosine
Sapropterin
Oxygen
L-Dopa
Dihydrobiopterin
Water
Dopamine
Carbon dioxide
Ascorbic acid
Oxygen
Norepinephrine
Dehydroascorbic
acid
Water
S-
Adenosylmethionine
S-
Adenosylhomocysteine
Sympathetic
Nervous System
Parasympathetic
Nervous System