What Role Do Ion Channel Receptors Play in Cell Signaling?
Ion channel receptors are integral to cell signaling pathways. They mediate rapid changes in cell membrane potential, which can initiate a cascade of downstream signaling events. For instance, the influx of calcium ions through ion channels can activate various calcium-binding proteins and enzymes, leading to changes in gene expression, muscle contraction, and secretion of hormones or neurotransmitters.
