Electrophysiological Characteristics of the PhoE Porin Channel from Escherichia coli. Implications for the Possible Existence of a Superfamily of Ion Channels

@article{Berrier1997ElectrophysiologicalCO,
  title={Electrophysiological Characteristics of the PhoE Porin Channel from Escherichia coli. Implications for the Possible Existence of a Superfamily of Ion Channels},
  author={Catherine Berrier and Madeleine Besnard and Alexandre Ghazi},
  journal={The Journal of Membrane Biology},
  year={1997},
  volume={156},
  pages={105-115}
}
Purified PhoE porins from Escherichia coli were reconstituted in giant proteoliposomes obtained by dehydration-rehydration, and studied by the patch-clamp technique. The following electrophysiological characteristics were observed. (i) The channels for which the probability of opening is maximum around 0 mV, closed at positive and negative potentials, at voltages higher than ±120 mV. (ii) The channels behaved asymmetrically in response to positive and negative potentials. (iii) The channels… CONTINUE READING
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