New force field parameters for metalloproteins I : Divalent copper ion centers including three histidine residues and an oxygen-ligated amino acid residue
Copyright © 2014 Wiley Periodicals, Inc.
Veröffentlicht in: | Journal of computational chemistry. - 1984. - 35(2014), 17 vom: 30. Juni, Seite 1278-89 |
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Format: | Online-Aufsatz |
Sprache: | English |
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2014
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Zugriff auf das übergeordnete Werk: | Journal of computational chemistry |
Schlagworte: | Journal Article Research Support, Non-U.S. Gov't first principles force field parameters metalloproteins molecular dynamics simulations Metalloproteins Aspartic Acid 30KYC7MIAI Glutamic Acid mehr... |
Zusammenfassung: | Copyright © 2014 Wiley Periodicals, Inc. Transition metal ion complexation with proteins is ubiquitous across such diverse fields as neurodegenerative and cardiovascular diseases and cancer. In this study, the structures of divalent copper ion centers including three histidine and one oxygen-ligated amino acid residues and the relative binding affinities of the oxygen-ligated amino acid residues with these metal ion centers, which are debated in the literature, are presented. Furthermore, new force field parameters, which are currently lacking for the full-length metal-ligand moieties, are developed for metalloproteins that have these centers. These new force field parameters enable investigations of metalloproteins possessing these binding sites using molecular simulations. In addition, the impact of using the atom equivalence and inequivalence atomic partial charge calculation procedures on the simulated structures of these metallopeptides, including hydration properties, is described |
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Beschreibung: | Date Completed 20.04.2015 Date Revised 23.05.2014 published: Print-Electronic Citation Status MEDLINE |
ISSN: | 1096-987X |
DOI: | 10.1002/jcc.23622 |