Epitopes of Protein Binders Are Related to the Structural Flexibility of a Target Protein Surface

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dc.contributor.authorKim, Dong-Gunko
dc.contributor.authorChoi, Yoonjooko
dc.contributor.authorKim, Hak-Sungko
dc.date.accessioned2021-05-25T04:50:23Z-
dc.date.available2021-05-25T04:50:23Z-
dc.date.created2021-05-25-
dc.date.created2021-05-25-
dc.date.created2021-05-25-
dc.date.issued2021-04-
dc.identifier.citationJOURNAL OF CHEMICAL INFORMATION AND MODELING, v.61, no.4, pp.2099 - 2107-
dc.identifier.issn1549-9596-
dc.identifier.urihttp://hdl.handle.net/10203/285309-
dc.description.abstractProtein binders including antibodies are known not to bind to random sites of target proteins, and their functional effectiveness mainly depends on the binding region, called the epitope. For the development of protein binders with desired functions, it is thus critical to understand which surface region protein binders prefer (or do not prefer) to bind. The current methods for epitope prediction focus on static indicators such as structural geometry or amino acid propensity, whereas protein binding events are in fact a consequence of dynamic interactions. Here, we demonstrate that the preference for a binding site by protein binders is strongly related to the structural flexibility of a target protein surface. Molecular dynamics simulations on unbound forms of antigen structures revealed that the antigen surface in direct contact with antibodies is less flexible than the rest of the surface. This tendency was shown to be similar in other non-antibody protein binders such as affibody, DARPin, monobody, and repebody. We also found that the relatedness of epitopes to the structural flexibility of a target protein surface is dependent on the secondary structure elements of paratopes. Monobody and repebody, whose binding sites are composed of beta-strands, distinctively prefer to bind to a relatively more rigid region of a target protein. These observations enabled us to develop a simple epitope prediction method which shows a comparable performance to the commonly used ones.-
dc.languageEnglish-
dc.publisherAMER CHEMICAL SOC-
dc.titleEpitopes of Protein Binders Are Related to the Structural Flexibility of a Target Protein Surface-
dc.typeArticle-
dc.identifier.wosid000644728600051-
dc.identifier.scopusid2-s2.0-85104914329-
dc.type.rimsART-
dc.citation.volume61-
dc.citation.issue4-
dc.citation.beginningpage2099-
dc.citation.endingpage2107-
dc.citation.publicationnameJOURNAL OF CHEMICAL INFORMATION AND MODELING-
dc.identifier.doi10.1021/acs.jcim.0c01397-
dc.contributor.localauthorKim, Hak-Sung-
dc.contributor.nonIdAuthorChoi, Yoonjoo-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordPlusB-CELL EPITOPES-
dc.subject.keywordPlusCOMPUTATIONAL DESIGN-
dc.subject.keywordPlusCONFORMATIONAL ENTROPY-
dc.subject.keywordPlusPREDICTION-
dc.subject.keywordPlusRECOGNITION-
dc.subject.keywordPlusSCAFFOLD-
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