Before revision: Generally, it is used as a marker for dopaminergic neurons, but it can also be found in some forebrain neurons which make norepinephrine (which is the product of dopamine and the enzyme dopamine URL
After revision: Generally, it is used as a marker for dopaminergic neurons, but it can also be found in some forebrain neurons which make norepinephrine (which is the product of dopamine and the enzyme dopamine β-hydroxylase).