Definition, Meaning & Synonyms
propeptide
Noun
/ˈprōˌpepˌtīd/

Definition
A propeptide is a precursor segment of a peptide that is initially synthesized as part of a larger protein before it becomes a functional peptide or protein.

Examples
- The propeptide must be removed for the enzyme to become active.
- Researchers study propeptides to understand protein maturation processes.
- Deficiencies in propeptide processing can lead to various diseases.

Meaning
Propeptides serve as a molecular marker that indicates a protein is in the process of being formed. They usually undergo enzymatic cleavage to become active peptides.

Synonyms
- Precursor peptide
- Incomplete peptide
- Proprotein segment