Peptides are short chains of amino acids that serve as fundamental building blocks in biological systems. Amino acids link together in specific sequences to form peptides, and longer chains of amino acids form proteins. Because of their size and structure, peptides often play highly specific roles in cellular signaling, regulation, and biological processes.

In research settings, peptides are studied for how they interact with receptors, enzymes, and cellular pathways, making them valuable tools in biochemical, pharmaceutical, and laboratory research.

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