Definition, Meaning & Synonyms

polypeptide

Noun

/ˌpɒliˈpɛptaɪd/

Definition

A polypeptide is a chain of amino acids linked together by peptide bonds, forming a part of proteins.

Examples

Insulin is a polypeptide hormone that helps regulate blood sugar levels.
The ribosome synthesizes polypeptides during the process of translation.
Some polypeptides can function independently while others need to combine with other molecules to be active.

Meaning

Polypeptides are essential molecules in biological processes and serve as building blocks for proteins. They can perform a variety of functions in the body, including acting as enzymes, hormones, and structural components.