<prompt> Answer this question truthfullyWhat is the process by which dopamine is converted to norepinephrine, and what is the role of the enzyme and cofactor involved?  <response>: <reason> Dopamine is converted to norepinephrine via the enzyme dopamine β-hydroxylase, with vitamin C acting as a cofactor. This process is important for the production of the neurotransmitter norepinephrine, which is involved in various physiological functions such as the regulation of blood pressure and heart rate. 