tyrosine hydroxylase [ tyrohase , tyrosine 3-monooxygenase , l-tyrosine , tetrahydropteridine : oxygen oxidoreductase ( 2-hydroxylating ) , ec 1.14.16.2 ] is the rate-limiting enzyme in the synthetic pathway of catecholamines and is expressed by neurons containing dopamine , norepinephrine , and epinephrine .
C0028351
norepinephrine
C0014563
epinephrine