What is a peptide?

A peptide is a short chain of amino acids joined by peptide bonds. In research, peptides are studied because their structure can be specific, measurable, and tied to defined biological signaling systems.

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Three unlabeled research vials in a bright laboratory setting

Amino acid chains

Amino acids are the building blocks. A peptide is formed when those blocks are connected in a defined sequence.

Shorter than proteins

Peptides are generally shorter than proteins, which can make sequence, purity, and identity especially important in a lab setting.

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What is a peptide?

Amino acid chains

Shorter than proteins

Research context