Ktr-mediated potassium transport, a major pathway for potassium uptake, is coupled to a proton gradient across the membrane in Synechocystis sp. PCC 6803

Nobuyuki Matsuda; Nobuyuki Uozumi

doi:10.1271/bbb.70.273

Ktr-mediated potassium transport, a major pathway for potassium uptake, is coupled to a proton gradient across the membrane in Synechocystis sp. PCC 6803

Nobuyuki Matsuda, Nobuyuki Uozumi

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

Synechocystis sp. PCC 6803 contains a Ktr system and a putative ATP-dependent Kdp system for potassium uptake. We report here that the Kdp system plays only a minor role in potassium uptake under salt and non-stress conditions, unlike the role it plays in Escherichia coli. In Synechocystis, Ktr-mediated potassium transport is dependent on the proton gradient across the membrane.

Original language	English
Pages (from-to)	273-275
Number of pages	3
Journal	Bioscience, Biotechnology and Biochemistry
Volume	70
Issue number	1
DOIs	https://doi.org/10.1271/bbb.70.273
Publication status	Published - 2006 Feb 2
Externally published	Yes

Keywords

Osmoregulation
Potassium
Proton motive force
Transporter

ASJC Scopus subject areas

Biotechnology
Analytical Chemistry
Biochemistry
Applied Microbiology and Biotechnology
Molecular Biology
Organic Chemistry

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