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Structural and relaxation effects in proton wire energetics: model studies of the green fluorescent protein photocycle

We present the results of a systematic series of constrained minimum energy pathway calculations on ground state potential energy surfaces, for a cluster model of the proton chain transfer that mediates the photocycle of the green fluorescent protein, as well as for a model including the solvated pr...

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Hauptverfasser: Sun, Qiao (VerfasserIn) , Wang, Sufan (VerfasserIn) , Zhang, Hong (VerfasserIn) , Li, Zhen (VerfasserIn) , Pfisterer, Christoph (VerfasserIn) , Fischer, Stefan (VerfasserIn) , Nanbu, Shinko (VerfasserIn) , Smith, Sean C. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 26 March 2010
In: Australian journal of chemistry
Year: 2010, Jahrgang: 63, Heft: 3, Pages: 363-370
ISSN:1445-0038
DOI:10.1071/CH09509
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1071/CH09509
Verlag, lizenzpflichtig, Volltext: https://www.publish.csiro.au/ch/CH09509
Volltext
Verfasserangaben:Qiao Sun, Sufan Wang, Hong Zhang, Zhen Li, Christoph Pifisterer, Stefan Fischer, Shinko Nanbu and Sean C. Smith
Beschreibung
Zusammenfassung:We present the results of a systematic series of constrained minimum energy pathway calculations on ground state potential energy surfaces, for a cluster model of the proton chain transfer that mediates the photocycle of the green fluorescent protein, as well as for a model including the solvated protein environment. The calculations vary in terms of the types of modes that are assumed to be capable of relaxing in concert with the movement of the protons and the results demonstrate that the nature and extent of dynamical relaxation has a substantive impact on the activation energy for the proton transfer. We discuss the implications of this in terms of currently available dynamical models and chemical rate theories that might be brought to bear on the kinetics of this important example of proton chain transfer in a biological system.
Beschreibung:Falsche Schreibweise: der Verfasser "Christoph Pfisterer" wird im Text "Christoph Pifisterer" geschrieben
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Beschreibung:Online Resource
ISSN:1445-0038
DOI:10.1071/CH09509

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