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Signaling Peptides

Meaning

Signaling peptides are short chains of amino acids that function as critical communication molecules in the human body, acting as ligands that bind to specific cell surface receptors to initiate intracellular signal transduction cascades. This diverse class includes many hormones, neuropeptides, and growth factors that regulate nearly every aspect of human physiology, from metabolism and reproduction to immunity and mood. They are the chemical language of intercellular communication.