Fc receptor

Fc receptors are specialized proteins on the surface of immune cells that recognize and bind to the constant (Fc) region of antibodies. When an antibody attaches to a pathogen like a virus or bacteria, the Fc receptor helps immune cells identify and respond to the threat. This interaction triggers immune processes such as engulfing the invader, releasing destructive chemicals, or signaling other immune cells to join the defense. Fc receptors are essential for coordinating effective immune responses and ensuring that antibodies can work efficiently to protect the body.