Energy transduction between a concentration gradient and an alternating electric field

Vladislav S. Markin; Tian Y. Tsong; R. Dean Astumian; Baldwin Robertson

doi:10.1063/1.458644

Energy transduction between a concentration gradient and an alternating electric field

Vladislav S. Markin, Tian Y. Tsong, R. Dean Astumian, Baldwin Robertson

Neurology & Neurotherapeutics

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55 Scopus citations

Abstract

A four-state transport protein that has electric charges that move concomitantly with conformational changes can transduce energy in either direction between an alternating membrane potential and a concentration gradient. An alternating electric potential of very large amplitude is considered, and the rapid-equilibrium approximation is used for the conformational changes. This permits deriving simple expressions for the transport flux, the power supplied by the alternating potential, and the power applied to the concentration gradient.

Original language	English (US)
Pages (from-to)	5062-5066
Number of pages	5
Journal	The Journal of Chemical Physics
Volume	93
Issue number	7
DOIs	https://doi.org/10.1063/1.458644
State	Published - 1990

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1063/1.458644

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title = "Energy transduction between a concentration gradient and an alternating electric field",

abstract = "A four-state transport protein that has electric charges that move concomitantly with conformational changes can transduce energy in either direction between an alternating membrane potential and a concentration gradient. An alternating electric potential of very large amplitude is considered, and the rapid-equilibrium approximation is used for the conformational changes. This permits deriving simple expressions for the transport flux, the power supplied by the alternating potential, and the power applied to the concentration gradient.",

author = "Markin, {Vladislav S.} and Tsong, {Tian Y.} and Astumian, {R. Dean} and Baldwin Robertson",

year = "1990",

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AU - Tsong, Tian Y.

AU - Astumian, R. Dean

AU - Robertson, Baldwin

PY - 1990

Y1 - 1990

N2 - A four-state transport protein that has electric charges that move concomitantly with conformational changes can transduce energy in either direction between an alternating membrane potential and a concentration gradient. An alternating electric potential of very large amplitude is considered, and the rapid-equilibrium approximation is used for the conformational changes. This permits deriving simple expressions for the transport flux, the power supplied by the alternating potential, and the power applied to the concentration gradient.

AB - A four-state transport protein that has electric charges that move concomitantly with conformational changes can transduce energy in either direction between an alternating membrane potential and a concentration gradient. An alternating electric potential of very large amplitude is considered, and the rapid-equilibrium approximation is used for the conformational changes. This permits deriving simple expressions for the transport flux, the power supplied by the alternating potential, and the power applied to the concentration gradient.

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Energy transduction between a concentration gradient and an alternating electric field

Abstract

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