Endogenous Peptide
Endogenous Peptide — A peptide naturally produced within an organism's own biological systems, as opposed to exogenous peptides introduced from external sources.
What Is an Endogenous Peptide?
An endogenous peptide is naturally produced within the body, as opposed to exogenous (externally administered) peptides. Endogenous peptides include hormones (insulin, oxytocin), neuropeptides (enkephalins), defense peptides (defensins, LL-37), and signaling peptides (cytokines, chemokines).
Discovery
- Peptidomics: Systematic identification of all endogenous peptides in a tissue or biofluid by LC-MS/MS
- Degradome: Complete set of proteolytic fragments generated in a biological system
- Bioactive screens: Cell-based assays identifying functional endogenous peptides from tissue extracts
Frequently Asked Questions
What is Endogenous Peptide?
A peptide naturally produced within an organism's own biological systems, as opposed to exogenous peptides introduced from external sources.
Why is Endogenous Peptide important in peptide research?
Endogenous Peptide is a fundamental concept in biochemistry as it relates to peptide science. It directly influences experimental design, compound characterization, and the reliability of research outcomes across biochemistry and molecular biology disciplines.
Authority Sources
- Endogenous Peptide on Wikipedia
- Search Endogenous Peptide on PubChem (NIH)
- Research articles on ScienceDirect