CATION-PROTON ANTIPORT SYSTEMS IN ESCHERICHIA-COLI - PROPERTIES OF THE SODIUM-PROTON ANTIPORTER

被引：88
作者：
BECK, JC
ROSEN, BP
机构：
[1] Department of Biological Chemistry, University of Maryland School of Medicine, Baltimore
来源：
ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS | 1979年 / 194卷 / 01期
关键词：
D O I：
10.1016/0003-9861(79)90611-8
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
The sodium/proton antiport system of Escherichia coli has been characterized by the effect of Na+ on the pH gradient established by respiration in everted membrane vesicles. The system has equal affinity for Na+ and Li+. Between pH 7 and 9 dissipation of Δψ, membrane potential, has no effect on the affinity for Na+ but decreases the V of the antiport reaction. Uptake of 22Na+ by everted membrane vesicles was observed using flow dialysis. © 1979.
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页码：208 / 214
页数：7
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