Dopamine beta-hydroxylase belongs to the copper type II, ascorbate-dependent monooxygenase family and catalyzes the oxidative hydroxylation of dopamine to noradrenaline. It is almost exclusively located in the adrenal medulla and the synaptic vesicles of postganglionic sympathetic neurons being expressed in noradrenergic and adrenergic neurons. DBH serves as a marker of noradrenergic cells.
