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.

引用

页码：208 / 214

页数：7

共 25 条

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