Localised chemiosmosis and active transport of lactose in Escherichia coli

FEBS Letters

Ahmed, Sohail¹ 

[1] Department of Biochemistry, University of California, Berkeley, CA 94720, USA

关键词: Localised chemiosmosis Protonmotive force Lactose transport Stoichiometry Escherichia coli;   

DOI  :  10.1016/0014-5793(84)80867-4

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

The phosphorylation potential (δG _p) in mitochondria has been found to be relatively insensitive to changes in the protonmotive force (δp). Similar observations have been made for lactose transport in Escherichia coli. Localised chemiosmosis has been invoked to explain these data. Here a postulate of localised chemiosmosis was put to experimental test and found to be incorrect. Alternative explanations for the δpdependence of lactose transport are presented.

【 授权许可】

Unknown