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Conduction Properties of KcsA Measured Using Brownian Dynamics with Flexible Carbonyl Groups in the Selectivity Filter

Chung, Shin-Ho; Corry, Ben


In the narrow segment of an ion conducting pathway, it is likely that a permeating ion influences the positions of the nearby atoms that carry partial or full electronic charges. Here we introduce a method of incorporating the motion of charged atoms lining the pore into Brownian dynamics simulations of ion conduction. The movements of the carbonyl groups in the selectivity filter of the KcsA channel are calculated explicitly, allowing their bond lengths, bond angles, and dihedral angels to...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
Source: Biophysical Journal
DOI: 10.1529/biophysj.106.098954


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