Accurate de novo design of high-affinity protein-binding macrocycles using deep learning
Developing macrocyclic binders to therapeutic proteins typically relies on large-scale screening methods that are resource intensive and provide little control over binding mode. Despite progress in protein design, there are currently no robust approaches for de novo design of protein-binding macrocycles. Here we introduce RFpeptides, a denoising diffusion-based pipeline for designing macrocyclic binders against protein targets of interest. We tested 20 or fewer designed macrocycles against each of four diverse proteins and obtained binders with medium to high affinity against all targets. For one of the targets, Rhombotarget A (RbtA), we designed a high-affinity binder (K<sub>d</sub> < 10 nM) despite starting from the predicted target structure. X-ray structures for macrocycle-bound myeloid cell leukemia 1, γ-aminobutyric acid type A receptor-associated protein and RbtA complexes match closely with the computational models, with a Cα root-mean-square deviation < 1.5 Å to the design models. RFpeptides provides a framework for rapid and custom design of macrocyclic peptides for diagnostic and therapeutic applications.
Authors
- Yensi Flores Bueso (ORCID: https://orcid.org/0000-0002-2118-2195)
- Manfred P Schneider
- Stacey Gerben (ORCID: https://orcid.org/0000-0003-0313-6248)
- Asim K. Bera (ORCID: https://orcid.org/0000-0001-9473-2912)
- Analisa Murray (ORCID: https://orcid.org/0000-0003-1560-6673)
- Alexandria N. Leveille (ORCID: https://orcid.org/0000-0002-0534-4828)
- Joseph D. Mougous (ORCID: https://orcid.org/0000-0002-5417-4861)
- Stephen Rettie (ORCID: https://orcid.org/0000-0001-9797-6939)
- Alex Kang (ORCID: https://orcid.org/0000-0001-5487-0499)
- Andi Liu (ORCID: https://orcid.org/0000-0002-8795-9614)
- Gaurav Bhardwaj (ORCID: https://orcid.org/0000-0001-6554-2335)
- Joshua A. Kritzer (ORCID: https://orcid.org/0000-0003-2878-6781)
- Mila Lamb (ORCID: https://orcid.org/0000-0002-7318-1805)
- David A. Baker (ORCID: https://orcid.org/0000-0001-7896-6217)
- Paul M. Levine (ORCID: https://orcid.org/0000-0003-4874-5557)
- Victor Adebomi (ORCID: https://orcid.org/0000-0002-4573-5102)
- David Juergens (ORCID: https://orcid.org/0000-0001-6425-8391)
- Sergey Ovchinnikov (ORCID: https://orcid.org/0000-0003-2774-2744)
- Alina Üffing (ORCID: https://orcid.org/0000-0001-8808-1033)
- Dieter Willbold (ORCID: https://orcid.org/0000-0002-0065-7366)
- Evans Brackenbrough (ORCID: https://orcid.org/0009-0004-1476-0219)
- Qinqin Zhao (ORCID: https://orcid.org/0000-0002-4092-5329)
- Frank DiMaio (ORCID: https://orcid.org/0000-0002-7524-8938)
- Oliver H. Weiergräber (ORCID: https://orcid.org/0000-0002-2410-3691)
- Joana A. Wilms (ORCID: https://orcid.org/0000-0001-5655-7009)
- Vibha Vasireddy
Institutions
- Tufts University (US)
- Howard Hughes Medical Institute (US)
- Forschungszentrum Jülich (DE)
- University of Washington (US)
- University College Cork (IE)
- The Francis Crick Institute (GB)
- PDL BioPharma (United States) (US)
- Heinrich Heine University Düsseldorf (DE)
- Massachusetts Institute of Technology (US)
Publication Details
- Journal
- Nature Chemical Biology
- Published
- 2025-06-20
- DOI
- https://doi.org/10.1038/s41589-025-01929-w
- Citations
- 34
- Primary Topic
- Peptidase Inhibition and Analysis
- Type
- article
- Field-Weighted Citation Impact
- 35.54
Funders
- Howard Hughes Medical Institute
- U.S. Department of Energy
- Bill and Melinda Gates Foundation
- University of Washington
- European Molecular Biology Laboratory
- European Commission
- Deutsche Forschungsgemeinschaft
- European Synchrotron Radiation Facility
- National Institutes of Health
- Defense Advanced Research Projects Agency
- Office of Science
- HORIZON EUROPE Framework Programme
- National Institute of General Medical Sciences
- Biological and Environmental Research
- Brookhaven National Laboratory