Comprehensive Guide to Peptide Stapling Methods: Anchoring Residues and Design Strategies
This review catalogs the full landscape of peptide stapling techniques — categorized by anchoring residue types — for designing stable, cell-permeable peptide drugs that block protein-protein interactions.
Quick Facts
What This Study Found
Stapled peptide design should consider anchoring residue type, cross-linker chemistry, staple length, and staple position — each significantly affects helicity, stability, cell permeability, and target binding.
Key Numbers
3 anchoring residue categories; covers stability, permeability, PPI inhibition; reversibility, bio-orthogonal, photoisomerization features
How They Did This
Comprehensive literature review categorizing peptide stapling methodologies by anchoring residue chemistry, with analysis of biophysical and biological properties.
Why This Research Matters
Protein-protein interactions drive most diseases but are "undruggable" by small molecules. Stapled peptides are the leading approach to crack this target class, and this review provides a practical design guide.
The Bigger Picture
Stapled peptides are entering clinical trials for cancer and other diseases. A comprehensive understanding of stapling chemistry is essential for expanding this drug class.
What This Study Doesn't Tell Us
Review — no new experimental data; the field evolves rapidly with new stapling chemistries being developed continuously.
Questions This Raises
- ?Which anchoring residue strategy gives the best balance of stability and target affinity?
- ?Can photoswitchable staples enable spatiotemporally controlled peptide drugs?
- ?How close are stapled peptides to becoming mainstream therapeutics?
Trust & Context
- Key Stat:
- 3 residue categories Natural amino acids, non-natural amino acids, or combinations — each with distinct stapling properties
- Evidence Grade:
- N/A — comprehensive review and methodology reference; no new experimental data.
- Study Age:
- Published in 2020; new stapling chemistries and clinical candidates have emerged since.
- Original Title:
- Stapled Helical Peptides Bearing Different Anchoring Residues.
- Published In:
- Chemical reviews, 120(18), 10079-10144 (2020)
- Authors:
- Li, Xiang(9), Chen, Si(7), Zhang, Wei-Dong, Hu, Hong-Gang
- Database ID:
- RPEP-04950
Evidence Hierarchy
Summarizes existing research on a topic.
What do these levels mean? →Frequently Asked Questions
What are protein-protein interactions and why are they hard to drug?
PPIs involve large, flat surfaces where two proteins meet. Traditional small-molecule drugs work on deep pockets — PPIs lack these pockets, so longer, shaped molecules like stapled peptides are needed.
What makes one stapling method better than another?
It depends on the target: some staples provide better stability, others improve cell entry, and some can be switched on and off with light. The best choice depends on the specific drug application.
Read More on RethinkPeptides
Cite This Study
https://rethinkpeptides.com/research/RPEP-04950APA
Li, Xiang; Chen, Si; Zhang, Wei-Dong; Hu, Hong-Gang. (2020). Stapled Helical Peptides Bearing Different Anchoring Residues.. Chemical reviews, 120(18), 10079-10144. https://doi.org/10.1021/acs.chemrev.0c00532
MLA
Li, Xiang, et al. "Stapled Helical Peptides Bearing Different Anchoring Residues.." Chemical reviews, 2020. https://doi.org/10.1021/acs.chemrev.0c00532
RethinkPeptides
RethinkPeptides Research Database. "Stapled Helical Peptides Bearing Different Anchoring Residue..." RPEP-04950. Retrieved from https://rethinkpeptides.com/research/li-2020-stapled-helical-peptides-bearing
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkPeptides research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.