doi: 10.1085/jgp.49.3.469.
Cation transport in Escherichia coli. VI. K exchange
- PMID: 5328217
- PMCID: PMC2195498
- DOI: 10.1085/jgp.49.3.469
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Cation transport in Escherichia coli. VI. K exchange
J Gen Physiol.
1966 Jan.
Abstract
K influx and net K flux have been measured in suspensions of chloramphenicol-arrested Escherichia coli. The rate of K exchange in the steady state was independent of the K concentration of the medium over a 200-fold range. Under a number of experimental conditions the rate of exchange may be considerably increased or decreased without changing the cellular K content. These results show that under these conditions changes in K influx are associated with equal changes in K efflux, and suggest that the latter process is, at least in part, both carrier-mediated and tightly coupled to the influx process.
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