Sub receptors work by binding to specific ligands, which are molecules that trigger a response within the cell. Upon ligand binding, the receptor undergoes a conformational change that initiates a cascade of intracellular events. This process is known as signal transduction. The specific response depends on the type of receptor and the ligand involved. For instance, GPCRs activate G proteins, which then influence various intracellular signaling pathways, while ion channel receptors directly alter the ion permeability of the cell membrane.
