Titolo | Concerted motions in copper plastocyanin and azurin: An essential dynamics study |
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Tipo di pubblicazione | Articolo su Rivista peer-reviewed |
Anno di Pubblicazione | 2001 |
Autori | Arcangeli, Caterina, Bizzarri A.R., and Cannistraro S. |
Rivista | Biophysical Chemistry |
Volume | 90 |
Paginazione | 45-56 |
ISSN | 03014622 |
Parole chiave | article, azurin, binding site, binocular convergence, computer model, Computer simulation, Copper, Crystallography, electron transport, molecular dynamics, motion, plastocyanin, priority journal, protein binding, Protein Conformation, protein modification, simulation, X-Ray |
Abstract | Essential dynamics analysis of molecular dynamics simulation trajectories (1.1 ns) of two copper containing electron transfer proteins, plastocyanin and azurin, has been performed. The protein essential modes have been analysed in order to identify large concerted motions which could be relevant for the electron transfer function exerted by these proteins. The analysis, conducted for temporal windows of different lengths along the protein trajectories, shows a rapid convergence and indicates that for both the proteins the predominant internal motions occur in a subspace of only a few degrees of freedom. Moreover, it is found that for both the proteins the likely binding sites (i.e. the hydrophobic and negative patches) with the reaction partners move in a concerted fashion with a few structural regions far from the active site. Such results are discussed in connection with the possible involvement of large concerted motions in the recognition and binding interaction with physiological electron transfer partners. Copyright © 2001 Elsevier Science B.V. |
Note | cited By 43 |
URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0035869698&doi=10.1016%2fS0301-4622%2801%2900128-4&partnerID=40&md5=1aa149811fa11c152864638511068e1f |
DOI | 10.1016/S0301-4622(01)00128-4 |
Citation Key | Arcangeli200145 |