G-protein coupled receptors
G-protein coupled receptors (GPCRs) are a large family of proteins found on the surface of cells. They act like antennas, sensing signals from outside the cell, such as hormones or nutrients. When these signals bind to a GPCR, the receptor changes shape and activates an internal protein called a G-protein. This G-protein then triggers a series of events inside the cell, leading to various responses, such as changes in cell behavior or function. GPCRs play crucial roles in many bodily processes, including vision, taste, and the regulation of mood and immune responses.
Additional Insights
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G-protein-coupled receptors (GPCRs) are proteins found on the surface of cells that play a crucial role in how cells communicate with the outside world. When a signaling molecule, like a hormone or neurotransmitter, binds to a GPCR, it activates internal signaling pathways within the cell by interacting with a special molecule called a G-protein. This process helps the cell respond to various signals, influencing functions such as mood, vision, and immune responses. GPCRs are significant in medicine because many drugs target these receptors to treat different diseases.