Reversibility of sodium-induced aggregation of sonicated phosphatidylserine vesicles.

E. P. Day; A. Y. Kwok; S. K. Hark; J. T. Ho; W. J. Vail; J. Bentz; S. Nir

doi:10.1073/pnas.77.7.4026

Reversibility of sodium-induced aggregation of sonicated phosphatidylserine vesicles.

E. P. Day^*, A. Y. Kwok, S. K. Hark, J. T. Ho, W. J. Vail, J. Bentz, S. Nir

^*Corresponding author for this work

Department of Soil and Water Sciences

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Abstract

The kinetics of sodium-induced aggregation of sonicated phosphatidylserine vesicles has been studied as a function of sodium concentration and temperature. The concentration threshold for aggregation induced by monovalent sodium has been found to be 550 mM sodium by stopped-flow rapid-mixing techniques. This aggregation is completely reversible to changes in sodium ion concentration and to changes in temperature. The aggregation rate decreases with increasing temperature, indicating that the backward reaction rate increases more rapidly with temperature than does the forward rate.

Original language	English
Pages (from-to)	4026-4029
Number of pages	4
Journal	Proceedings of the National Academy of Sciences of the United States of America
Volume	77
Issue number	7
DOIs	https://doi.org/10.1073/pnas.77.7.4026
State	Published - Jul 1980

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AU - Nir, S.

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Reversibility of sodium-induced aggregation of sonicated phosphatidylserine vesicles.

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