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. 1989 Apr;171(4):2219–2221. doi: 10.1128/jb.171.4.2219-2221.1989

Specific cesium transport via the Escherichia coli Kup (TrkD) K+ uptake system.

D Bossemeyer 1, A Schlösser 1, E P Bakker 1
PMCID: PMC209881  PMID: 2649491

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.

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Selected References

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