Oligopeptide

Oligopeptide

An Oligopeptide is a peptide with a small number of amino acids. They are typically composed of between two and twenty amino acids. Oligopeptides are derived from larger proteins and polypeptides through the process of hydrolysis. They can also be synthesized in the laboratory.

Structure and Function

Oligopeptides are composed of amino acids linked together by peptide bonds. The sequence of amino acids in an oligopeptide determines its structure and function. Some oligopeptides, such as dipeptides, tripeptides, and tetrapeptides, are named for the number of amino acids they contain.

Oligopeptides play a crucial role in the body's biochemical processes. They serve as hormones, neurotransmitters, and antibiotics, among other functions. For example, the hormone oxytocin is a nonapeptide, meaning it contains nine amino acids.

Synthesis

Oligopeptides can be synthesized in the laboratory through a process known as peptide synthesis. This involves the formation of peptide bonds between amino acids. The process can be carried out in a solution or on a solid support, known as solid-phase peptide synthesis (SPPS).

Applications

Oligopeptides have a wide range of applications in biology, medicine, and research. They are used in the study of protein structure and function, in the development of new drugs, and in the treatment of diseases such as cancer and HIV.

See Also

• Peptide
• Protein
• Amino acid
• Peptide synthesis
• Solid-phase peptide synthesis

References

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Oligopeptide

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  Tripeptide Val-Gly-Ala structural formula

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  Tetrapeptide structural formulae