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Rational Dissection of Binding Surfaces for Mimicking of Discontinuous Antigenic Sites

Authors: Villén, Judit; Rodríguez-Mias, Ricard A.; Núñez, José I.; Giralt, Ernest; Sobrino, Francisco; Andreu, David;

Rational Dissection of Binding Surfaces for Mimicking of Discontinuous Antigenic Sites

Abstract

Peptide-based approaches to mimicking protein interactive regions have relied mainly on linear peptides; however, most binding sites are discontinuous and thus not easily reproducible by a linear sequence. Any attempt to replicate those sites by chemical means must not only integrate all residues involved in the recognition but also provide structural organization to native-like levels. Here we describe a surface mimic approach to the reconstruction of such complex molecular architectures, using as a model a discontinuous antigenic site of foot-and-mouth disease virus that is defined by residues belonging to three different capsid proteins. Our surface mimics are synthetic cyclic peptides, designed in silico, capable of binding antibodies directed to this site, and with demonstrated functional capabilities as vaccines in guinea pigs. Further, by saturation transfer difference NMR, we have determined several antibody binding residues on these peptides.

Keywords

Models, Molecular, Magnetic Resonance Spectroscopy, Protein Conformation, Clinical Biochemistry, Guinea Pigs, Enzyme-Linked Immunosorbent Assay, Antigen-Antibody Complex, Biochemistry, Peptides, Cyclic, Sensitivity and Specificity, Antibodies, Antigen-Antibody Reactions, Epitopes, Drug Discovery, Animals, Molecular Biology, Pharmacology, Binding Sites, Molecular Mimicry, Disease Models, Animal, CHEMBIO, Antigens, Surface, Molecular Medicine

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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