Volume 61, Issue 51 e202212527
Research Article

Tailored Cross-β Assemblies Establish Peptide “Dominos” Structures for Anchoring Undruggable Pharmacophores

Limin Zhang

Limin Zhang

Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, 100081 P. R. China

Search for more papers by this author
Mengzhen Li

Mengzhen Li

Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, 100081 P. R. China

Search for more papers by this author
Minxuan Wang

Minxuan Wang

Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, 100081 P. R. China

Search for more papers by this author
Lingyun Li

Lingyun Li

Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, 100081 P. R. China

Search for more papers by this author
Mingmei Guo

Mingmei Guo

Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, 100081 P. R. China

Search for more papers by this author
Yubin Ke

Yubin Ke

Spallation Neutron Source Science Center, Dongguan, 523803 P. R. China

Search for more papers by this author
Peng Zhou

Peng Zhou

College of Chemical Engineering, China University of Petroleum (East China), 66 Changjiang West Road, Qingdao, 266580 P. R. China

Search for more papers by this author
Weizhi Wang

Corresponding Author

Weizhi Wang

Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, 100081 P. R. China

Search for more papers by this author
First published: 14 September 2022
Citations: 19

Graphical Abstract

By adjusting the solvent-accessible surface area of the peptide chain, the tilt angle of the β-sheets in the self-assembly could be manipulated to form a collapsed-domino-like structure, resulting in a controllable display of the active sites for PD-L1 recognition.

Abstract

β-sheets have the ability to hierarchically stack into assemblies, and much effort has been spent on designing different peptides to regulate their assembly behaviors. Although the progress is remarkable, it remains challenging to manipulate them in a controllable way for achieving both tailored structures and specific functions. In this study, we obtained bola-like peptides using de novo design and combinatorial chemical screening. By regulating the solvent-accessible surface area of the peptide chain, a series of assemblies with different tilt angles and active sites of the β-sheet were obtained, resembling collapsed dominos. The structure-activity relationship of the optimized peptide NQ40 system was established and its ability to target the PD-L1 was demonstrated. This study successfully established the structure-function relationship of β-sheets assemblies and has positive implications on the rational design of peptide assemblies that possess recognition abilities.

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.