...classified by the signaling protein that the receptors couple to: Gq-DREADDs Gq-DREADDs signal through the ...Gi-DREADDs Gi-DREADDs signal through the Gαi/o G-protein and inhibit neuronal signaling by inhibiting adenylate...Gs-DREADDs Gs-DREADDs signal through the Gαs G-protein and activate neuronal signaling by increasing intracellular...small molecules that do not affect endogenous signaling, therefore allowing precise control over the cell...then activates G-proteins to modulate downstream signaling. GPCRs have been shown to be involved in a wide...of biological processes, including initiating signaling pathways in inflammation and neurotransmission...couples to β-arrestin to activate noncanonical GPCR signaling independent of G proteins. This DREADD, termed...