Peptides are short chains of amino acids linked by peptide bonds.

They are fundamental biological molecules and perform numerous signalling, hormonal and regulatory functions.

Key Pointers

  • Category: Science & Technology / Biology
  • Made up of amino acids.
  • Amino acids are connected by peptide bonds.
  • Peptides are generally shorter than proteins.
  • Functions include:
    • Hormonal signalling
    • Cell communication
    • Immune regulation
    • Metabolic regulation
  • Examples:
    • Insulin
    • Oxytocin
    • Vasopressin
  • Peptide-based therapeutics are an important area of modern medicine.

Prelims Focus: Amino acids → peptide bond → peptide → protein.