peptide receptors

Peptide receptors are specialized proteins located on the surface of cells that recognize and bind to specific small protein-like molecules called peptides. When a peptide binds to its receptor, it triggers a series of internal signals within the cell, guiding responses such as growth, immune activity, or hormone regulation. These receptors are essential for communication between cells, helping the body coordinate complex processes. Think of them as molecular "locks" that are activated when the right "key" (peptide) fits into them, enabling the cell to respond appropriately.