Effect of Na3VO4 and membrane potential on the structure of sarcoplasmic reticulum membrane
- 1 February 1984
- journal article
- research article
- Published by Springer Nature in The Journal of Membrane Biology
- Vol. 78 (1), 73-79
- https://doi.org/10.1007/bf01872534
Abstract
Two-dimensional crystalline arrays of Ca2+-ATPase molecules develop after treatment of sarcoplasmic reticulum vesicles with Na3VO4 in a Ca2+-free medium. The influence of membrane potential upon the rate of crystallization was studied by ion substitution using oxonol VI and 3,3′-diethyl-2,2′-thiadicarbocyanine (Di−S−C2(5)) to monitor inside positive or inside negative membrane, potentials, respectively. Positive transmembrane potential accelerates the rate of crystallization of Ca2+-ATPase, while negative potential disrupts preformed Ca2+-ATPase crystals, suggesting an influence of transmembrane potential upon the conformation of Ca2+-ATPase.This publication has 16 references indexed in Scilit:
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