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- W2024173659 abstract "Postsynaptic density-95/disks large/zonula occludens-1 (PDZ) domains are relatively small (80-120 residues) protein binding modules central in the organization of receptor clusters and in the association of cellular proteins. Their main function is to bind C-terminals of selected proteins that are recognized through specific amino acids in their carboxyl end. Binding is associated with a deformation of the PDZ native structure and is responsible for dynamical changes in regions not in direct contact with the target. We investigate how this deformation is related to the harmonic dynamics of the PDZ structure and show that one low-frequency collective normal mode, characterized by the concerted movements of different secondary structures, is involved in the binding process. Our results suggest that even minimal structural changes are responsible for communication between distant regions of the protein, in agreement with recent NMR experiments. Thus, PDZ domains are a very clear example of how collective normal modes are able to characterize the relation between function and dynamics of proteins, and to provide indications on the precursors of binding/unbinding events." @default.
- W2024173659 created "2016-06-24" @default.
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- W2024173659 date "2005-07-01" @default.
- W2024173659 modified "2023-10-13" @default.
- W2024173659 title "Functional Dynamics of PDZ Binding Domains: A Normal-Mode Analysis" @default.
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- W2024173659 doi "https://doi.org/10.1529/biophysj.104.055004" @default.
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