wild-type cells grown in defined minimal medium supplemented with 1 % glycerol , exhibiting derepressed galactokinase synthesis , were found to contain considerable quantities of dopa ( 3,4-dihydroxyphenylalanine ) and dopamine , but no detectable levels of either norepinephrine or epinephrine .
C0028351
norepinephrine
C0014563
epinephrine