In Vitro Selection of Macrocyclic α/β-Peptides Against Human EGFR
Overview
Affiliations
Here, we report ribosomal construction of thioether-macrocyclic α/β-peptide libraries in which β-homoglycine, β-homoalanine, β-homophenylglycine, and β-homoglutamine are introduced by genetic code reprogramming. The libraries were applied to the RaPID (Random nonstandard Peptides Integrated Discovery) selection against human EGFR to obtain PPI (protein-protein interaction) inhibitors. The resulting peptides contained up to five β-amino acid (βAA) residues and exhibited outstanding binding affinity, PPI inhibitory activity, and proteolytic stability, which were attributed to the βAAs included in the peptides. This showcase work has demonstrated that the use of such βAAs enhances the drug-like properties of peptides, providing a unique platform for the discovery of de novo macrocycles against a protein of interest.
Reprogramming the genetic code with flexizymes.
Katoh T, Suga H Nat Rev Chem. 2024; 8(12):879-892.
PMID: 39433956 DOI: 10.1038/s41570-024-00656-5.
Miura T, Lee K, Katoh T, Suga H J Am Chem Soc. 2024; 146(26):17691-17699.
PMID: 38888290 PMC: 11229689. DOI: 10.1021/jacs.4c01979.
Engineering tRNAs for the Ribosomal Translation of Non-proteinogenic Monomers.
Sigal M, Matsumoto S, Beattie A, Katoh T, Suga H Chem Rev. 2024; 124(10):6444-6500.
PMID: 38688034 PMC: 11122139. DOI: 10.1021/acs.chemrev.3c00894.
Katoh T, Suga H Nucleic Acids Res. 2024; 52(11):6586-6595.
PMID: 38572748 PMC: 11194099. DOI: 10.1093/nar/gkae219.