Coil conversion to [beta]-strand induced by dimerization

Laibe, Johanna, Caffrey, Aaron, Broutin, Melanie, Guiglion, Solene, Pierscionek, Barbara and Nebel, Jean-Christophe (2018) Coil conversion to [beta]-strand induced by dimerization. Proteins: Structure, Function, and Bioinformatics, 86(12), pp. 1221-1230. ISSN (print) 0887-3585

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Most molecular processes in living organisms rely on protein–protein interactions, many of which are mediated by β-sheet interfaces; this study investigates the formation of β-sheet interfaces through the conversion of coils into β-strands. Following an exhaustive search in the Protein Data Bank, the corresponding structural dimorphic fragments were extracted, characterised and analysed. Their short strand lengths and specific amino acid profiles indicate that dimorphic β-strand interfaces are likely to be less stable than standard ones and could even convert to coil interfaces if their environment changes. Moreover, the construction of a simple classifier able to discriminate between the sequences of dimorphic and standard β-strand interfaces suggests that the nature of those dimorphic sequences could be predicted, providing a novel means of identifying proteins capable of forming dimers.

Item Type: Article
Uncontrolled Keywords: protein-protein interaction, protein conformational change, protein dimerisation, intermolecular β-strand interfaces, dimorphic sequences, protein structure
Research Area: Biological sciences
Faculty, School or Research Centre: Faculty of Science, Engineering and Computing > School of Computer Science and Mathematics
Depositing User: Susan Miles
Date Deposited: 16 Aug 2018 15:25
Last Modified: 23 Jul 2019 09:13

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