The allosteric site is a specific region on an enzyme or receptor that is separate from the active site. It plays a crucial role in regulating the activity of the enzyme or receptor by binding to molecules known as allosteric modulators. These modulators can either enhance or inhibit the enzyme's activity, depending on the specific molecule and its interaction with the allosteric site.
Overall, the function of the allosteric site is to regulate the enzyme's activity in response to changes in the cell's environment or signaling molecules. This allows for precise control over metabolic pathways and cellular processes, ensuring that they are functioning optimally in response to changing conditions.