ArticleChemistry (Weinheim an der Bergstrasse, Germany)2025
Optimal Stapling of a Helical Peptide-Foldamer Hybrid Using a C-Terminal 4-Mercaptoproline Enhances Protein Surface Recognition and Cellular Activity.
Article in Chemistry (Weinheim an der Bergstrasse, Germany), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Linker Engineering in Stapled Peptides for Enhanced Membrane Permeability: Screening and Optimization Strategies.International journal of molecular sciences · 2026Review
- A General Synthesis Approach to Double-Guanidinium Stapled Peptides and Foldamers.Chemistry (Weinheim an der Bergstrasse, Germany) · 2025Article
- Optimal Stapling of a Helical Peptide-Foldamer Hybrid Using a C-Terminal 4-Mercaptoproline Enhances Protein Surface Recognition and Cellular Activity.Chemistry (Weinheim an der Bergstrasse, Germany) · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
14 authors.
Funding
Abstract
Structural analysis of a co-crystal of a helically-folded peptide-foldamer hybrid in complex with hDM2 E3 ubiquitin ligase, revealed a unique orientation for the C-terminal proline with the pyrrolidine ring pointing backwards in the sequence, and suggested new opportunities for macrocyclization. In particular, we found that the C-terminal prolyl residue could be replaced by its (2S,4S)-4-mercaptoprolyl analogue for optimal bisthioether crosslinking with a cysteine residue installed at position 4 in the sequence. The resulting i,i+7 stapled peptide-foldamer is a high-affinity binder to hDM2, is cell permeable and restores the p53 signalling pathway in p53wt cancer cells. The co-crystal structure of hDM2 and the stapled peptide-foldamer hybrid was determined at 1.84 Å, fully validating the original design and further highlighting the potential of cis-4-mercaptoproline in the context of peptide and foldamer stapling.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.