Cited by 55Monoclonal and Polyclonal Antibodies Researchvaccines and immunoinformatics approachesProtein Structure and Dynamics

Fragment-based computational design of antibodies targeting structured epitopes

Open access
Aguilar Rangel, Mauricio, Bedwell, Alice, Costanzi, Elisa, Taylor, Ross J., Russo, Rosaria, Bernardes, Gonçalo J. L., Ricagno, Stefano, Frydman, Judith +2 more·2022·Science Advances

Abstract

De novo design methods hold the promise of reducing the time and cost of antibody discovery while enabling the facile and precise targeting of predetermined epitopes. Here, we describe a fragment-based method for the combinatorial design of antibody binding loops and their grafting onto antibody scaffolds. We designed and tested six single-domain antibodies targeting different epitopes on three antigens, including the receptor-binding domain of the SARS-CoV-2 spike protein. Biophysical characterization showed that all designs are stable and bind their intended targets with affinities in the nanomolar range without in vitro affinity maturation. We further discuss how a high-resolution input antigen structure is not required, as similar predictions are obtained when the input is a crystal structure or a computer-generated model. This computational procedure, which readily runs on a laptop, provides a starting point for the rapid generation of lead antibodies binding to preselected epitopes.

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  • A strategy of grafting paratope fragments based on epitope similarity has been used to obtain nanomolar binders without parallel screening.

    “However, recently, a strategy of grafting paratope fragments based on epitope similarity has been used to obtain nanomolar binders without parallel screening [94].”

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  1. [41]J. Jumper, R. Evans, A. Pritzel, T. Green, M. Figurnov, K. Tunyasuvunakool, O. Ronneberger, R. Bates, A. Žídek, A. Bridgland, C. Meyer, S. A. A. Kohl, A. Potapenko, A. J. Ballard, A. Cowie, B. Romera-Paredes, S. Nikolov, R. Jain, J. Adler, T. Back, S. Petersen, D. Reiman, M. Steinegger, M. Pacholska, D. Silver, O. Vinyals, A. W. Senior, K. Kavukcuoglu, P. Kohli, D. Hassabis, High accuracy protein structure prediction using deep learning. Nature 596, 583– 589 (2021). 34265844 PMC8371605

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Authors
Aguilar Rangel, M., Bedwell, A., Costanzi, E., Taylor, R. J., Russo, R., Bernardes, G. J. L., Ricagno, S., Frydman, J., Vendruscolo, M., & Sormanni, P.
Affiliations
  • Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, UK.
  • University of Cambridge (GB)
  • University of Milan (IT)
  • Department of Bioscience, Università degli Studi di Milano, Milano 20133, Italy.
  • Stanford University (US)
Corresponding author
  • Vendruscolo, Michele
  • Sormanni, Pietro
Venue
Science Advances
Published
2022-11-11
Volume
8
Issue
45
Pages
eabp9540-eabp9540
ISSN
2375-2548 (ISSN-L)
OpenAlex
W4308915416
Cited by
55
References
50
Citations by year
2026: 11 · 2025: 13 · 2024: 10 · 2023: 16 · 2022: 4 · 2021: 1
FWCI
6.11
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Science Advances (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Archivio Istituzionale della Ricerca (Universita Degli Studi Di Milano) (submittedVersion, cc-by)
  • Archivio Istituzionale della Ricerca (Universita Degli Studi Di Milano) (submittedVersion, other-oa)
  • Apollo (University of Cambridge) (submittedVersion, cc-by)
  • Apollo (cc-by)
Funders
  • Novo Nordisk
  • Novo Nordisk Fonden (NNF18OC0033950)
  • National Institute of General Medical Sciences (R01GM056433)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › vaccines and immunoinformatics approaches
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
Keywords
de novo antibody design, fragment-based design, nanobodies, spike protein receptor-binding domain, antibody affinity, epitope targeting
MeSH terms
COVID-19, SARS-CoV-2, Antibodies, Monoclonal, Antibody Affinity, Epitopes, Antigens, Humans, Models, Molecular, Spike Glycoprotein, Coronavirus

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