Valinomycin-induced uptake of potassium in membrane vesicles from Escherichia coli.

Abstract:

:Osmotically shocked Escherichia coli and membrane vesicle ghosts from E. coli cells have lost the ability to accumulate potassium by active transport. The addition of valinomycin to the membrane ghosts restores the capacity to accumulate radioactive (42)K and (86)Rb by a temperature- and energy-dependent process. Membrane vesicles prepared from mutants of E. coli altered in potassium transport show defects in the valinomycin-stimulated accumulation of (42)K that are related to the defects in the intact cells.

authors

Bhattacharyya P,Epstein W,Silver S

doi

10.1073/pnas.68.7.1488

subject

Has Abstract

pub_date

1971-07-01 00:00:00

pages

1488-92

issue

7

eissn

0027-8424

issn

1091-6490

journal_volume

68

pub_type

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