Non stochastic distribution of single channels in planar lipid bilayers

The selectivity of the planar lipid bilayers modified by two channel-forming proteins (α-toxin S. aureus and colicin Ia) was examined. It was established that in all cases the value of zero current potential depended on the amount of open ion channels and increased with the number of channels (from...

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Bibliographic Details
Published in:Biochimica et biophysica acta 1995-02, Vol.1233 (2), p.105-110
Main Authors: Krasilnikov, Oleg V, Merzliak, Peter G, Yuldasheva, Liliya N, Nogueira, Romildo A, Rodrigues, Cláudio G
Format: Article
Language:English
Subjects:
Bacterial Toxins - chemistry
Colicins - chemistry
Hemolysin Proteins - chemistry
In Vitro Techniques
Ion channel
Ion Channel Gating
Ion Channels - chemistry
Lipid bilayer
Lipid Bilayers
Membrane Potentials
Non stochastic distribution
Stochastic Processes
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Summary:The selectivity of the planar lipid bilayers modified by two channel-forming proteins (α-toxin S. aureus and colicin Ia) was examined. It was established that in all cases the value of zero current potential depended on the amount of open ion channels and increased with the number of channels (from one to about 5–7). These facts point out both the interactions among ion channels and their non stochastic distribution on the membrane surface.
ISSN:0005-2736
0006-3002
1879-2642
DOI:10.1016/0005-2736(94)00231-D