Article
Peregrination of the selectivity filter delineates the pore of the human voltage-gated proton channel hHV1.
The Journal of general physiology - 1 Dec 2013
Morgan Deri, Musset Boris, Kulleperuma Kethika, Smith Susan M E, Rajan Sindhu, Cherny Vladimir V, Pomès Régis, DeCoursey Thomas E
Abstract excerpt
Extraordinary selectivity is crucial to all proton-conducting molecules, including the human voltage-gated proton channel (hHV1), because the proton concentration is >10(6) times lower than that of other cations. Here we use "selectivity filter scanning" to elucidate the molecular requirements for proton-specific conduction in hHV1. Asp(112), in the middle of the S1 transmembrane helix, is an essential part of...
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