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REVIEW
Department of Molecular Biophysics and Physiology, Rush University Medical Center, Chicago, Illinois tdecours{at}rush.edu
The voltage-gated proton channel bears surprising resemblance to the voltage-sensing domain (S1–S4) of other voltage-gated ion channels but is a dimer with two conduction pathways. The proton channel seems designed for efficient proton extrusion from cells. In phagocytes, it facilitates the production of reactive oxygen species by NADPH oxidase.
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