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PMID:2649491

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Citation

Bossemeyer, D, Schlösser, A and Bakker, EP (1989) Specific cesium transport via the Escherichia coli Kup (TrkD) K+ uptake system. J. Bacteriol. 171:2219-21

Abstract

Escherichia coli cells which contain a functional Kup (formerly TrkD) system took up Cs+ with a moderate rate and affinity. Kup is a separate K+ uptake system with relatively little discrimination in the transport of the cations K+, Rb+, and Cs+. Regardless of the presence or absence of Kup, K+-replete cells took up Cs+ primarily by a very low affinity mode, proportional to the ratio of the Cs+ and K+ concentrations in the medium.

Links

PubMed PMC209881

Keywords

Binding, Competitive; Biological Transport; Cesium/metabolism; DNA Mutational Analysis; Escherichia coli/metabolism; Genes, Bacterial; Kinetics; Potassium/metabolism; Recombinant Proteins/metabolism; Substrate Specificity

Significance

Annotations

Gene product Qualifier GO Term Evidence Code with/from Aspect Extension Notes Status

ECOLI:KUP

enables

GO:0015079: potassium ion transmembrane transporter activity

ECO:0000314: direct assay evidence used in manual assertion

F

Seeded From UniProt

complete

ECOLI:KUP

acts_upstream_of_or_within

GO:0071805: potassium ion transmembrane transport

ECO:0000314: direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

ECOLI:KUP

GO:0043266: regulation of potassium ion transport

ECO:0000314:

P

Figure 1

complete
CACAO 4714


See also

References

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