Dopamine receptor (D1, D2, D3, D4, D5) (DRD1, DRD2, DRD3, DRD4, DRD5)

Dopaminergic signaling refers to the neurotransmission process mediated by dopamine, a key neurotransmitter in the central nervous system. This process involves dopamine binding to its five G protein-coupled receptor subtypes (D1, D2, D3, D4, D5), which are grouped into D1-like and D2-like families. Dopaminergic signaling regulates numerous functions, including movement, motivation, reward, learning, and neuroendocrine activity. Dysregulation of dopaminergic signaling is implicated in various neuropsychiatric and neurodegenerative disorders. Therapeutic targeting involves both stimulation and inhibition of dopamine receptors, depending on disease context.

Other names

Dopaminergic receptorsDA receptorDopamine receptor familyD1-like receptorD2-like receptor

Agonism at dopamine receptors (stimulate signaling) - Antagonism at dopamine receptors (block signaling) - Modulation of dopamine synthesis, release, or reuptake (e.g., inhibition of dopamine transporter)