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Updated: Jun 27, 2026
11:56
Antimicrobial Peptides Produced by Selective Pressure Incorporation of Non-canonical Amino Acids
Published on: May 4, 2018
How nature morphs peptide scaffolds into antibiotics
Elizabeth M Nolan1, Christopher T Walsh
1Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA.
Chembiochem : a European Journal of Chemical Biology
|December 6, 2008
Summary
Nature synthesizes peptide-based antibiotics like penicillin, challenging the idea that peptides are unsuitable for oral drugs due to degradation. These natural peptides offer potential for new therapies against resistant bacteria.
Area of Science:
- Biochemistry
- Pharmacology
- Microbiology
Background:
- Conventional view: peptides are poor oral drug candidates due to protease sensitivity, hydrophilicity, and charge.
- Nature's counterexample: diverse peptide-based natural products function as potent antibiotics.
Purpose of the Study:
- To challenge the conventional limitations of peptide-based drugs.
- To highlight the therapeutic potential of naturally occurring peptide antibiotics.
- To explore new platforms for combating antibiotic resistance.
Main Methods:
- Review of existing literature on natural product antibiotics.
- Analysis of the structural and functional properties of peptide-based antibiotics.
- Comparative study of synthetic peptide drug limitations versus natural peptide antibiotic efficacy.
Main Results:
- Numerous natural antibiotics possess peptide frameworks, demonstrating Nature's success in overcoming peptide degradation.
- Established peptide antibiotics like penicillin and vancomycin are highly effective and commercially successful.
- Natural peptide structures offer blueprints for novel therapeutic designs.
Conclusions:
- Peptide-based natural products demonstrate that oral bioavailability is achievable.
- These natural compounds represent valuable platforms for developing new treatments against drug-resistant bacteria.
- Further research into natural peptide antibiotics can drive innovation in antimicrobial drug discovery.
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