Intracellular signalling is the chain of events inside a cell after a receptor is activated. Dopamine receptors influence enzymes, second messengers, ion channels and proteins that regulate cellular activity. D1-like receptors generally increase cyclic AMP…Continue Reading
An agonist activates a receptor, while an antagonist prevents activation by occupying or otherwise blocking it. A partial agonist produces less activation than a full agonist under comparable conditions. At dopamine receptors, partial agonists can…Continue Reading
D1 and D5 belong to the D1-like receptor family. Their signalling generally increases cyclic AMP through Gs or Golf proteins. D1 receptors are important in prefrontal networks supporting working memory and other cognitive functions. Experimental…Continue Reading
D2 receptors are central targets of most established antipsychotics. They usually signal through Gi/o proteins and influence cyclic AMP, ion channels and other cellular processes. They occur on receiving neurons and as autoreceptors involved in…Continue Reading
D3 and D4 are members of the D2-like receptor family. They have different distributions and pharmacological properties from D2. D3 is studied in relation to motivation and reward, while D4 has attracted interest partly because…Continue Reading