neuron-to-neuron signaling pathway via the chemical synapse dopamine signaling pathway Dopamine receptors Dopamine signaling plays important roles in processes such as motivation, learning and movement. It also plays several roles in the periphery as a modulator of renal, cardiovascular and endocrine systems. Dopamine signals to a family of at least 5 receptors that are classified into two subfamilies that couple to distinct G proteins to elicit diverse downstream events. Deregulation of the pathway has been implicated in several neuropsychiatric and neurological disorders. PW:0000394 dopamine receptor signaling pathway dopaminergic pathway pathway catecholamine signaling pathway chemical compound signaling pathway