FoundationalConceptsNeuroscience

NH2

henylalanine

oes sli

NH»

sine

HO ST

fms

HO NH»

DOPA

He) | COOH

HO NH>

HO

OH

HO

norepinephrine

Fs = 8

HO

CH

HO N~ _ epinephrine

H

HO

Figure 7.4. Biosynthesis of the monoamine neurotransmitters dopamine,
norepinephrine, and epinephrine from the essential amino acid phenylala-