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Efficacy of external tetraethylammonium block of the KcsA potassium channel: Molecular and Brownian dynamics studies

Bisset, David; Chung, Shin-Ho

Description

Blockade of the KcsA potassium channel by externally applied tetraethylammonium is investigated using molecular dynamics calculations and Brownian dynamics simulations. In KcsA, the aromatic rings of four tyrosine residues located just external to the selectivity filter create an attractive energy well or a binding cage for a tetraethylammonium molecule. We first investigate the effects of re-orienting the four tyrosine residues such that the centers of the aromatic rings face the...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
URI: http://hdl.handle.net/1885/60953
Source: Biochimica et Biophysica Acta: Biomembranes
DOI: 10.1016/j.bbamem.2008.05.008

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